DE2823253A1 - Aerosol and foam generator - with radial blowing agent jets diverted into annular gap with entrained material - Google Patents

Abstract

A device to produce aerosol or foam consists of an outer tulip-shaped baffle which acts as a deflector for the blowing agent. It forms in combination with a central headpiece an annular slot through which the blowing agent and the atomised material entrained by it must pass. The ratio of entrained liquid or powder to the amount of blowing agent is much increased thereby. The spectrum of the particle size in an aerosol or a bubble size in a foam is narrowed. Materials which are sensitive to shear forces (microoroganism suspensions) are not detrimentally affected.

Description

Device for distributing liquid and

powdery materials with the formation of aerosol or foam The invention relates to devices for distributing liquid and powder Materials with the formation of aerosol or foam, in which facilities for Generating a flow of gaseous propellant medium past an outlet for the liquid or powdery material, one covering the material outlet at the end Head piece and at least one baffle wall at a distance from the material outlet at least for the material particles coming out of the material outlet in such a way to one another are arranged so that the baffle catches coarse material particles.

In known devices of this type (see DE-OS 19 55 545) is a flow of gaseous propellant medium through a preferably as an annular gap formed material outlet out to the material to be distributed from this To suck in the outlet and to carry it along in the form of more or less coarse particles. The coarse particles are then against a plate-shaped or bell-shaped baffle steered and caught there. In general, the coarse particles collected are collected by the baffle and returned to the material reservoir.

Only to a small extent can the known devices the coarse particles reaching the baffle are crushed and placed in the propellant gas flow be distributed. As a result, these known devices have only relatively small ones Efficiency in terms of the amount of propellant medium and result in a relatively broad spectrum the particle size in aerosols or the bubble size in foams. The ones on the market The nozzles located and working according to the same principle naturally have the same defects. Atomizer nozzles on the market without a baffle, for example simple perfume atomizer and atomizer with guidance of a gas flow in one Venturi tube and introduction of the material to be distributed in the gas flow into the union of Venturi tubes (fuel carburetors) are used to generate aerosols and foams therefore conceivably unsuitable because coarse material particles are not caught and therefore very quickly after leaving the aerosol generator or foam generator fail and significantly impair the stability of the aerosol or the foam.

The object of the invention is therefore to provide the devices explained at the beginning for distributing liquid and powdery materials with the generation of aerosols or foam to the effect that the efficiency, i.e. the The ratio of the amount of material distributed to the amount of propellant gas required is essential is increased and the spectrum of particle size in the aerosol or bubble size in the Foam is significantly concentrated, with the distribution of in particular against Shear forces of sensitive materials, for example the distribution of suspensions of microorganisms should be made possible without damaging such sensitive materials.

This object is achieved according to the invention in that the impact wall at the same time as a guide wall Mr den Driving medium flow is formed and together with the head piece forms an annular gap through the area thereof this baffle and guide wall as a sliding guide surface for the entirety of the propellant medium and passes through it to be distributed material.

The invention creates a new type of interaction 1 between the flow of propellant flowing through the material outlet, the baffle and guide wall and the head piece to the effect that the impact of the coarse particles is achieved on the baffle and guide wall under the simultaneous effect of the along this Impact and guide wall guided propellant flow takes place. Already the impact the coarse material particles no longer move in a straight line, but with one in the direction of flow of the propellant flow along the impingement and Guide wall accelerated movement. This hits the coarse particles of material no longer solely on a baffle, but are moved through it in the direction of flow of the propellant flow accelerated impact movement along the baffle and guide wall moved and thereby preferably divided or ground into smaller particles. The inclination the coarse particles settle on the surface of the baffle and guide wall is thereby practically eliminated or at least considerably decreased. Should particles nevertheless settle on the surface of the baffle and guide wall, so the material stuck there is swept away again very quickly by the flow of propellant medium, all the more so than in the one between the baffle and guide wall and the head piece gap formed an extensive implementation of the prevailing in the gaseous propellant medium Pressure in flow velocity, so a very considerable acceleration of the motive medium flow takes place and naturally at the entrance area of the gap and exit region of the gap turbulence occurs in the propellant medium flow, which are suitable for lifting a material cover formed on the baffle and guide wall or to counteract the formation of such a material cover at all.

Another novel effect of the invention is that the Gap formed between the head piece and the baffle and guide wall is essential can be made longer than the material outlet blown over by the flow of propellant medium. Apart from the fact that this narrowing of the gap increases the efficiency made possible, also has the relocation of the actual distribution process in these gap the advantage that the material outlet is no longer at optimal Material distribution but optimal material emerges must be coordinated. The on Shear forces generated in the material particles can thereby be reduced so that even sensitive materials without damage to the material outlet initially coarser and then finely distributed in the gap. In the gap will then through the interaction of gas flow, baffle and guide wall and head piece exerted a highly effective tearing effect on the coarse material particles. This The tearing effect is no longer caused by shear forces alone, but also by a variety of other effects of force, such as producing a rapid one Rotation of the particles and thus centrifugal forces occurring on the particles caused.

In the device according to the invention, the current of gaseous propellant medium not only through the gap but also through the material outlet self guided. For this purpose, the head piece can be designed to carry a current of Form gaseous propellant, this flow over the material outlet and along the surface of the baffle and guide wall and those coming out of the material outlet coarse material particles for impact against the baffle and guide wall to to steer. This allows a relatively simple structure of the inventive Reach device. There are two basic options, either use the flow of gaseous propellant medium itself to drive the material sucking in from the material outlet or the material by applying special Forces, for example by using overpressure in the material feed or to force through centrifugal forces in the propellant flow It offer themselves in the context of the Invention also the two different design options, either to provide the baffle and guide wall as a separate element from the head piece or the baffle and guide wall on the head piece itself, for example in shape to form a curved surface.

If desired, an aerosol or foam with more or To blow off less high speed, preference is given to the baffle and guide wall towards its exit end funnel-shaped, widening in the manner of a Lavall nozzle form. In such a case, it is recommended that the head piece be axially adjustable with respect to to be attached to the baffle and guide wall, so that in this way a favorable, simple and effective adjustment of the gap width is made.

If you use the propellant flow at the same time to suck in the to be distributed If you want to use material from the material outlet, you can do this, for example Use an axial central channel for supplying the propellant medium, the radially directed Has outlets or nozzles for the gaseous propellant medium, while that to be distributed Material is fed in an annular channel arranged coaxially to the central channel. This annular channel can be a material feed piece with a substantially star-shaped Contain cross-section, so that this ring channel is divided into a channel bundle. By axially adjusting the head piece and the radial outlets of the central channel with regard to the outlet cross-section of the annular channel and, if necessary, axial adjustment of the Material guide piece in the ring channel can then be an optimal setting of the Make material out, which then less on the achieved particle size than can be matched to the achieved amount of material escaping. In such an embodiment of the invention can be the ring channel or the channel bundle coaxially surrounding baffle and guide wall in the direction of flow of the gaseous propellant open in the central channel and the head piece in the open side of the baffle and guide wall be used, the head piece at its the ring channel or

the side facing the channel bundle with at least one annular Deflection surface for the gaseous propellant 'medium is formed.

In other advantageous embodiments of the invention, the material outlet is on the circumference of the head piece, in the one between the head piece and the baffle and guide wall formed gap and directed essentially against the baffle and guide wall arranged.

In such embodiments, the material to be distributed in the bring the gap formed between the head piece and the impact and guide wall, can either be from the propellant flow flowing past the circumference of the head piece generated suction can be exploited or generated in the material to be distributed Overpressure, for example a gaseous gas introduced into this material under pressure Medium, or the material from the head piece into the gap against the baffle and guide wall are thrown. In the latter case one is preferred rotationally symmetrical design and coaxial arrangement of head piece and impact and provide guide wall. Furthermore, one is fundamentally with the arrangement of the material outlet Form the head piece as a hollow body on the circumference of the head piece, to which the material to be distributed is fed in the middle. For example, the head piece through a pair of divider discs be formed on their Perimeter an annular outlet slot to each other and the annular gap to the baffle and guide wall, with devices for blowing through gaseous Medium parallel to the central axis of the pair of distributor disks and the baffle and guide wall are provided, while the distributor disk pair itself with facilities for Feeding the material to be distributed, preferably in its central area is provided. Such a distributor disk pair is given above for all three Possibilities of the jqmaterialausgabe suitable, so suction of the to be distributed Material, creating an overpressure between the distributor disks or spinning off by rotating the pair of distributor disks.

Another possibility is that the head piece has a through a pair of distributor disks and one between the peripheral edges of the distributor disks used distributor ring is formed hollow body, wherein the distributor ring is a A plurality of outlet channels extending essentially radially to the head piece and the interior of the head piece to the supply of the material to be distributed connected. Such a design of the material leave it can preferably be connected to the fact that the interior of the head piece is expanded radially outwards towards the distributor ring. The outlet channels can be matched in their cross-section to the material to be distributed and a cross-sectional area in the range between 0.02 mm2 and 1 mm2. Preferably, the outlet channels circular cross-section with a diameter in the range between 0.2 mm and 0.5 mm exhibit. These radial outlet capillaries can be made of electrically insulating Material exist, so that the outwardly moving through these capillaries to be distributed Material is electrostatically charged. Such electrostatic charge of the Particle is then retained in an aerosol and is of particular use for many purposes Advantage.

Another embodiment provides that the head piece through at least three distributor disks is formed, between which two interior spaces and at their peripheral edges two annular outlets arranged axially one behind the other as an annular outlet slot and / or as a distributor ring with radial channels or capillaries are provided, the two annular outlets essentially radial in between the head piece and the baffle and guide wall formed, annular gap are directed, and each of the between the distributor discs formed interiors connected to feeds for material to be distributed is. In this embodiment of the invention, materials of various types can be combined in an aerosol or foam. You could also use a headjoint with only one interior a mixing of materials to be distributed in this Make interior. However, for some use cases the merging of Materials only in a distributed form, i.e. in the one between the head piece and the impact wall formed gap more advantageous. In addition, the design of the head piece offers with two or more interior spaces the possibility of setting the distribution conditions on materials different types to adapt ..

For example, the head piece can consist of two pairs of distributor disks be formed, of which a pair of distributor disks rotates and the other pair of distributor disks is certain.

If the head piece is designed as a centrifugal rotor and in the axis of symmetry the rotationally symmetrical baffle and guide wall is rotatably mounted, the various drive devices used for the rotation of the head piece Jerden. For mobile aerosol or

Foam generator units offer, for example, the possibility of on the front of the aerosol or

Foam generator to arrange an air inlet opening in the an air turbine forming the rotary drive for the head piece is used. Such an air inlet opening will preferably be provided when such mobile units, air should be used as the propellant. You can then use the headjoint Arrange directly behind the air turbine in the air inlet opening, with the peripheral wall the air inlet opening forms the baffle and guide wall. But you can also do that Arrange the head piece at an axial distance behind the air turbine and the air inlet opening and behind the air turbine essentially axially to the housing of the aerosol or foam generator Guided transfer channels for introducing the air coming from the air turbine into the gap between the baffle and guide wall and the circumference of the head piece form.

For aerosol foam generator units to operate with pressurized gas, for example A compressed gas motor for the Rotary drive of the head piece can be provided.

In other versions, an electric motor or an internal combustion engine can also be used be provided for the rotary drive of the head piece. Such an electric motor or Internal combustion engine can then also be used as a fan for generating a Propelling medium to be used air currents.

Bringing the material to be distributed or

the materials to be distributed to the material outlet can be in a wide variety of ways Way done. For this purpose, for example, inside the aerosol or

Show generator or on the peripheral wall of the aerosol or slumber generator Storage container may be provided, which lines via Zuführungslei with the material outlet or a central inlet on the back of the head piece.

Some exemplary embodiments of the invention are based on the following the drawing explained in more detail. It shows in. 1 a simple, stationary, according to the invention trained aerosol generator in axial section; Fig. 2 shows the area II of the aerosol generator according to FIG. 1 in an enlarged representation with reproduction the flow conditions; 3 shows a modified embodiment of an aerosol generator according to FIG. 1 in axial section. FIG. 4 shows an enlarged illustration of the area IV of FIG. 3 showing the flow conditions; Fig. 5 a third embodiment of a stationary constructed according to the invention Aerosol generator in axial section; 6 shows an enlarged illustration of the area VI with reproduction of the flow conditions; 7 shows one designed according to the invention Foam generator in axial section; Fig. 8 a designed according to the invention, Unit that can be used as an aerosol generator or foam generator in an axial section; 9 shows a likewise optionally usable as aerosol generator or foam generator Unit with two pairs of distributor disks arranged one behind the other in partial axial section; FIG. 10 shows an assembly modified in relation to FIG. 9, that the rearward divider disk pair fixed and the front pair of distributor disks is rotating; 11 shows a further embodiment a unit that can be used as an aerosol generator or foam generator in an axial direction Cut; FIG. 12 shows an enlarged, modified reproduction of area XII of FIG Figure 11; 13 shows a further modified version, as an aerosol generator or foam generator insertable device in partial axial section; 14 shows a modified embodiment of the head piece of a device according to Figure 13 in axial section; 15 shows another Modification of the head piece for a device according to Figure 13 in axial section; Fig. 16 shows a third modification of the head piece for a device according to FIG. 13 in the axial direction Cut; 17 shows area XVII of FIG. 13 in a modified version; Fig. 18 a self-propelled, for example rocket, equipped mobile unit can be used as an aerosol generator or foam generator in axial section; 19 a .bnsandlurlq Small aerosol or foam generator according to Figure 18 in axial partial section; Fig. 20 shows a further modification compared to FIG. 18 or FIG. 19 in partial axial section; 21 shows a vehicle, for example a helicopter or an airplane attachable device, preferably to be used as an aerosol generator, in axial section and FIG. 22 shows an attachable to a vehicle, for example an airplane or helicopter, Device that can be used preferably as a foam generator in an axial section.

In the example shown in FIGS. 1 and 2, there is an aerosol generator 30 is provided which contains a head piece 3 on its outlet side. This headpiece 31 is formed in this example in the manner of a plate, the one shown in Example, outlet 32 formed by four bores for the propellant medium, in particular Air, and an annular outlet 33 for the material to be distributed, in particular liquid materials, covered at the front. At the air outlet 32 and the material outlet 33 facing side, the head piece 31 is formed with a guide surface 34, which can be slightly conical or curved and serves the propellant divert from radial flow direction in more or less axial flow direction. That Head piece 31, the air outlet 32 and the material outlet 33 are surrounded by a funnel-shaped baffle and guide wall 35, which in the example of Figures 1 and 2 is curved outwards. Between the scope of the Head piece 31 and this baffle and guide wall 35, an annular gap 36 is formed, that of all of the gaseous propellant and the entrained to be distributed Material is interspersed. As can be seen from Figure 2, the axial cross-section is of the annular gap is designed so that it approximates the cross-section of a Laval nozzle.

The air used as the driving medium is introduced through a central tube 37, which is closed at its front end by the plate-shaped head piece 31 is and behind the head piece in the form of four radial bores or nozzles having formed outlet 32. The air flows from this outlet 32, as in FIG Figure 2 indicated by the solid arrows, radially over the as an annular gap formed material outlet 33 and tears there -as in Figure 2 through the dotted Arrows indicated - liquid or powdery material with, which then radially outwards is transported. To ensure that the material is fed evenly to the outlet 33 and that it is even The -5itt-elrohr37 is used to ensure that the material from the outlet 33 is carried surrounded by an outer tube 38, so that between both pipes an annular gap is formed into which a star-shaped distributor insert 39 is inserted is.

As Figure 2 shows, are initially through the rear surface of the Head piece 31, the air jets emerging from the bores of the outlet 32 distributed all around over the material outlet 33 designed as an annular gap and then caused by the deflection surface 34, from the radial direction of movement in a to pass over more or less axial flow direction and at the same time on the inner surface slide along the baffle and guide wall 35. The from the qmaterialauslass 33 However, entrained particles can practically not take part in this deflection of movement participate and meet - as shown in Figure 2 - essentially radially against the Inner surface of the baffle and guide wall 35. Due to the joint effect of the The air flowing past this inner surface and the impact force become the Platerialteilchen distributed and largely in much smaller particles by the baffle and guide wall diverted back into the gap 36 and the propellant flow passing through it. the Small ponds and the particles that are essentially refined on the baffle and guide wall are now 1t effortlessly stabilized by the propellant flow under luti 9111C'3L i iCIIAerosols> () 1.'1,1 taken along.

As indicated in Figure 1, the inner tube 37, the star-shaped Distributor 39 and the outer tube 38 axially against one another by means of indicated threads adjustable. The funnel-shaped baffle and guide wall 35 is also axial adjustable on the outer tube 38. In this way, optimal conditions can be achieved by adjusting the distance between the back of the head piece 31 and the Create the material outlet 33 and by adjusting the width of the gap 36.

The device according to Figures 1 and 2 can also be adjusted the appropriate working conditions and supply of the appropriate materials use to produce foams.

In the example of Figures 3 and 4, modifications have been made, as the head piece 31 is held with a rod 40: and - as indicated by arrow 31 - Can be adjusted axially with this rod 40. Adjustment can be made by twisting of the head piece: 31, claus for this one at its outer face 42 indicated recess z in the intervention of a work ': ugsauf4 shows. Between the appropriately trained t; ti rnse lt ign R uLid13des of the central tube 37 and the rear side The head piece 3 is, in this example, an annular outlet 32 1f in gaseous form Cc.Li Prebmedium formed. jur. this ring- tLig- shaped outlet is an essentially ice-shaped gas flow, which acts as an annular gap formed material outlet 33 runs. Figure 4 shows the flow of the gaseous Propellant medium with solid arrows and the movement of the out of the material outlet 33 particles entrained by dotted arrows.

Similar to the example in FIGS. 1 and 2, according to FIG 3 deflected the flow of motive medium through the rear surface of the head piece 31 so that coarser, heavier particles emerge laterally out of the flow of the propellant medium and hit against the cone-shaped baffle and guide wall 35 in this example, where again the same effects are achieved as described above in connection with Figure 2 are explained. Due to the shape of the rear surface of the head piece 31, the front edges 43 and 44 of the inner tube 37 and outer tube 38 and the conical shape of the baffle and guide wall 35 is again given to the gap 36 Cross-sectional shape similar to that of a Laval nozzle.

Also in the example of Figures 3 and 4, the axial adjustability of the Inner roller 37, the outer tube 38, the head piece 31 and the baffle and guide wall 35 is provided so that, as in the example of Figures 1 and 2, the width of the gap 36 and also the width of the gap-shaped air outlet 32 and the width of the the annular passage 45 leading to the gap 36 adjustable are.

The example in FIGS. 5 and 6 is a modified one Device designed to radially dispense aerosol or foam all around is. The head piece 31 has a shape similar to that in the example in FIGS. 3 and 4 however, into the central tube 37 and accordingly carries the on its rear side designed as bores outlet 32 for the gaseous carrier medium. The central tube 37 is surrounded in this example by an additional inner tube 46, which the bores of outlet 32 continues into an annular passage 47 to form a conical flow of gaseous propellant medium via the material outlet 33. The outer tube 38 is formed in this example on its front edge 44 so that it with the strongly deflected in the radial direction outer area 48 of the rear Surface of the head piece 31 forms the gap 36, which again in this example has a cross-sectional shape similar to that of a Laval nozzle. Tm difference to the embodiments of Figures 1 to 4 are through the ring passage 47 and the formation of the material outlet 33 the entrained aluminum material particles initially guided in a relatively sharp cone (see Fig. 6). Thereby meet the entrained material particles against the essentially radial directed area 48 of the rear surface of the head piece 31. This annular surface area 48 on the back of the head piece 31 thus forms the impact and guide wall.

As FIG. 5 shows, the inner tube 46 becomes simultaneous in this case as a rear termination and carrier of the outer tube 38 and the central tube 37 used. The material to be distributed is through a connector 49 in the space between Outer tube 38 and inner tube 46 inserted. The center tube 37, the inner tube 46 and the outer tube 48 are axially adjustable to one another.

As a result, the width of the annular passage 47 and the gap 36 adjusted to optimal conditions.

By adjusting and using appropriate materials the device according to FIGS. 5 and 6 can also be used as a foam generator.

Figure 7 shows an embodiment that is primarily used as a foam generator 30 is intended. In this example there is one inside after the foam outlet opening 60 widening housing 61 a head piece 31 in the form of a pair of distributor disks 62, 63 inserted. The rear distributor disk 62 is on hers The back is essentially designed as an aerodynamic body and is converted into a corresponding one Receiving body 64 of the housing 61 inserted in such a way that between this receiving body 64 and the rear distributor plate 62 have feed channels 65 distributed all around for gaseous propellant medium, for example compressed air, are formed. These channels open into a baffle and guide wall 66 attached to the housing and the circumference of the distributor disks 62 and 63 formed annular gap 67. The feed the gaseous propellant medium or foaming medium takes place via a feed nozzle 68. The rear distributor disk 62 is by means of screw connections, not shown or the like on the rib-shaped inwardly projecting parts 69 of the receiving body 64 keep. The rear distributor disk 62 is towards its front side formed into a trough 70, which is formed by the dome-shaped front Distributor disk 63 is covered.

On the circumference of the head piece 31 is between the binding distributor disks 62 and 63 an annular outlet slot 71 is formed. The feeding of the foam material and possibly additives to the foam, for example a suspension of nutrient medium and microorganisms, takes place from connection nipples 72 via supply channels 73 in a mixing chamber 74 and arranged centrally to the rear distributor disk 62 from there into the trough 70 the rear distributor plate 62. To adjust the width of the slot 71, the front distributor disk is 63 with a central, axially arranged threaded shaft 75 in a central, axially arranged threaded bore 76 of the rear distributor plate 62 held so that by rotating the shaft 75 or the unit of shaft 75 and front Distributor disk 63 can change the width of the slot 71.

Adjusting the width of the gap between the circumference of the head piece 31 and the baffle and guide wall 66 are carried out by axially adjusting them baffle and guide wall 66 on the receiving body, which widening towards the outlet opening 60 64, the setting made in each case being secured by means of clamping screws 77 will.

By blowing gaseous medium into the connection piece 68 an annular gas flow is generated through the gap 67, which in the central mixing chamber 74 formed and introduced from there into the trough 70 of the rear distributor disk 62 Mixture entrains through the slot 71 and behind the front distributor disc 63 swirled with foam formation and then as a foam stream along the baffle and Guide wall 66 blows through outlet opening 60.

The device according to FIG. 7 can also be used as an aerosol generator use. It can be particularly useful to know the material to be distributed not to be withdrawn from the slot 71 by suction alone, but through the slot 71 through with a radial component of movement against the baffle and guide wall 66 lead. This impact on the baffle and guide wall 66 is in the Cooperation with the gaseous propellant medium moved through the gap 67 particularly fine and intensive distribution of the material caused under practical the same conditions as explained above in connection with FIGS. 2, 4 and 6 have been.

A modified embodiment of a foam generator or aerosol generator is shown in FIG.

Within the housing 61 are a rotating pair of distributor disks 82, 83 arranged as a head piece 31.

These distributor disks 82, 83 have circular cross sections and are of a rotationally symmetrical to the central axis of the distributor disks 82 and 83 Surround baffle and guide wall 66, as in the example of Figure 7 after the The outlet widened out and with the circumference of the head piece 31 a circumferential one Gap 67 forms 1 while between the distributor disks 82 and 83 on the circumference of the Head piece 31 has an outlet slot 71.

The front distributor disk is used to drive the head piece 31 in rotation 83 with an axially adjustable connection 84 on that of an electric motor 87 fixed in rotation drive shaft 85, while the rear distributor disc 82 with the help of a spider-like connecting piece 86 firmly on the drive shaft 85 sits. The rear distributor disc 82 has a central cylindrical, rear collar 88, which engages in the mixing chamber 74 and the to be distributed Absorbs material, for example aerosol substance to be distributed or foam material. In contrast to the foam generator according to FIG. 7, there are foam or aerosol generators in the foam generator 30 according to Figure 8 behind the rear distributor plate 82 receiving tanks 89 and 90 arranged for materials to be distributed. From these receiving tanks 89 and 90 feed feed lines 91 lead via feed pumps to be controlled from the outside or feed valves 92 to the interior of the cylindrical collar 88. The tanks 89 and 90 are with not shown from the housing 61 leading to the outside Filling connections are provided, which are also constantly connected during operation of the device Refill lines can be connected.

Since in the example of FIG. 8 the rotational movement of the head piece 31 done by the electric motor 87 is on this electric motor 87 still connected to an axially sucking in and radially blowing fan 93, the Air from an intake line 94 via branch lines 95 into an annular ring of the tanks 89 and 90 surrounding air duct 96 promotes. This annular air channel 96 ends in which the width can be adjusted by axially adjusting the impact and guide wall 66 Annular gap 67.

The operation of this device is essentially the same as that of a device according to FIG. 7. However, due to the rotation of the head piece 31 which emerges from the slot 71 between the distributor disks 82 and 83 Material is given an additional radial movement component through which this Material at least partially against the inner surface of the baffle and guide wall 66 is thrown. This increases the intensity of the distribution of the material and a much finer distribution, i.e. the generation of much smaller ones Material particles reached.

It should be noted that it is already finely distributed from the slot 71 emerging material is also taken up directly by the air in the annular gap 67 is, while still relatively coarsely distributed material, a fine distribution by impact on the baffle and guide wall 66 receives in basically the same way as this in connection with FIGS. 2, 4 and 6 is explained above.

FIG. 9 shows a device which, compared to that according to FIG is modified that the head piece 31 has two pairs of distributor disks 82, 83; 82 ', 83' one behind the other. As Figure 9 shows, it is possible to use different To guide materials separately through a pair of distributor disks. For example, can one different substances that do not mix well as liquids or powders let, thereby introduce into a common aerosol. Another application consists in a material to be included in a foam, for example a Suspension of nutrient medium and microorganisms from the tank 30 into the rear To introduce a pair of distributor disks 82 and 83 through their cylindrical collar 88, while foam material from the tank 89 via the cylindriw's collar 88 'into the front distributor disk pair 82 '83' is guided. In the latter application In the annular gap 67, first an aerosol from the aerosol flowing through the annular gap 67 Air with the material fed in from the rear pair of distributor disks 82, 83 educated. This aerosol is then used to generate an essentially gaseous medium of the foam with the foam material emerging from the pair of distributor disks 82 ', 8' in the area 87 'of the annular gap used.

Another training option is shown in FIG. After that the head piece 31 contains a rear, fixed distributor disk pair 62, 63, which can be constructed in a manner similar to that in the example in FIG. before This rear, fixed distributor disk pair G2, 63 is a rotating one Distributor disk pair 82 ', 83' are used as in the example in FIG. The way of working of the device according to Figure 10 is practically the same as that of a device according to Figure 9. A device according to Figure 10 will be preferred in those cases in which one or the other material not particularly suitable for distribution by means of rotating Distribution slices is suitable.

The embodiment according to FIGS. 11 and 12 is one Aerosol generator 30, which has a cylindrical housing lol with an open, end face Has the end, the open end area of the housing wall at the same time the impact and guide wall 66 forms. The head piece is located within this end area 66 31 is used, which is driven by a compressed air motor 114 via a coaxial hollow shaft 85 is driven, the hollow shaft is mounted at 114a..Devices not shown are provided to allow a 2i1 of the air flowing through the compressed air motor 114 through to guide the bore of the hollow shaft 85.

In this example, the head piece 31 has an outer closed one Distributor disk 83b, which is attached to the hollow shaft 85. This distributor disc 83b has an outer edge 83d, which is at a suitable angle (300 to 450) Geliei backwards (jt is. An inner closed disk 83a is also on the Hollow shaft 85 attached, preferably with devices for axial adjustment lengthways the wave. The outer edge of this inner disk 83a runs parallel to the outer edge 83d, also inclined backwards. Between these two disks 83a and 83b, a cavity 83c is formed which into a nozzle-shaped outlet slot 83e opens at the outer circumference. Openings 85 'in the shaft 85 allow under To lead excess pressure air from the hollow shaft 85 into the space 83c.

Finally, an inner closed disk 82 is for example fastened by means of a spider-like holder 82a on the hollow shaft 85 and forms a cavity 82b to the disc 83a, which is in a circumferential outlet slot 71 ends.

As shown, the housing 61 extends around tanks 89 and 90, which contain the material to be distributed, while lines 91 with adjustable Pumps 92 from the interior of these tanks into the interior of a collar 88 extend which is attached to the rear of the disc 82.

The compressed air motor 114 is provided with an air inlet 118 to a suitable one Compressed air source (not shown) connected. One air outlet of the engine 114 is in communication with the bore of the hollow shaft 85, so that it is under overpressure standing air is transferred into the cavity 83c. Other engine air outlets are in connection with an annular channel 96 in the housing 61 via lines 95.

When the device is in operation, the motor 114 is operated with compressed air and thereby sets the head piece 31 in rotation.

The one air outlet of the motor 118 leads under pressure Air into cavity 83c. At the same time, material to be distributed is removed from the tanks 89 and 90 passed from the pumps 92 via the lines 91 into the cavity 82b, in FIG which this material mixed and swirled and thrown at the slot 71 to the outside will. This throwing off takes place in cooperation with that by the ring nozzle 83e entering air, leaving a mixture of material and pressurized air i the gap 67 is introduced. Due to the size of movement given to them the material particles against the inner surface of the baffle and guide wall 66 emotional and further distributed and crushed. At the same time, those from the slot 71 exiting into gap 67 and rebounding from baffle and guide wall 66 Particles captured by the air flow guided through the gap 67. In this way a stable aerosol is generated.

In Figure 12, a modified design of the head piece 31 is shown. In this example, an inner closed disc 82c is added, which is also is attached to the hollow shaft 85. This is between the disks 82 and 82 c another cavity 82d is formed. In this embodiment, the shaft 85 may be provided with further openings to allow pressurized air into these Introduce cavity 82d.

The outer circumference of the disk 82d can, as shown, with a Angle between about 30 and 450 forward, i.e. inclined towards disc 83b be to between the outer disks 83b and 82d an annular slot S to build. The inner disks 82 and 83a can also overlap at their circumferential area to be inclined, for example also at an angle between about 30 and 450 so as to form an inner slot a that is coaxial and aligned with the outer slot S is located.

In operation, all disks 82, 82d, 83a, 83b are driven by the hollow shaft 85 set in rotation and the supplied material to be distributed in the cavity 82b thrown through the inner slot s. Between the outer panes 83b and 82d becomes this material that comes with that coming out of the cavities 83c and 82d pressurized air mixed and through the outer slot S into the gap 67 led.

The embodiment shown in Figures 11 and 12 can, for example can be modified in such a way that some of the disks are stationary and others are rotating be moved. It is also possible to adjust the width of the thlítze sund S to use such a device as a foam generator.

Figures 13 to 17 relate to a foam generator or aerosol generator usable device which has the following modifications compared to that according to FIG.

The rotational movement of the head piece 31 is made by an air motor 114 generated. For this purpose, the compressed air is tangential in a substantially cylindrical Vortex chamber 115 introduced, on the peripheral wall of which outlets 116 are essentially radial are displayed. Compressed air is supplied from these outlets 116 via lines 117 led to the annular gap 67. Zen- Air from the vortex chamber becomes neutral 115 taken with the line 118 for driving the motor 114.

This is generally due to the friction on the chamber wall be warmer than the air withdrawn through the outlets 116 into the lines 117 Compressed air reaching the motor 114.

The distributor disks 112 and 113 of the head piece no longer form an adjustable slot but are on their circumference with an annular porous distributor body 119 equipped, through which is substantially radially extending passages the material to be distributed is pressed to finely distribute into the gap 67 and thus into the influence of the axial air flow prevailing there In general, the rotational movement of the head piece 31 is sufficient to to allow these materials to escape in sufficient quantities. In Figure 13 are therefore the air outlet lines coming from the motor are routed backwards out of the device.

The distributor body 119 can be any type of porous body. The passages of this distributor body should, however, with their cross-section the material to be distributed must be matched and 2 a cross-sectional area between about 0.02 mm and 1 mm. It is particularly advantageous Distributor body 119 made from glued or welded together plastic tubes to form, which can have a circular passage cross-section and their lights Diameter should be in the range between 0.2mm and 0.55mm. Training the distributor body made of electrically insulating material offers the advantage of that when the material to be distributed slides through the passages of the Distributor body 119 an electrostatic charge of the gap 67 reaching Particle enters. This electrostatic charge can result in the formation of aerosols be of considerable benefit.

For better distribution of the material on the inner surface of the ring-shaped In the case of the head piece 31 according to FIGS. 13 to 17, the distribution body 119 is the arrangement taken so that the interior space 112a between the distributor disks 112 and 113 radially outwards onto the inside of the annular distributor body 19 to expanded. This is achieved in the cases shown by the fact that the outer Distributor disk 113 is formed recessed in the central area.

If you want to get the exit menye of material from the.

Increase distributor body 119, so you can thereby the centrifugal effect increase that one in the interior 112a in addition to the material to be distributed also still introduces compressed air. This can be done in a similar way to the example in the figure 11 done with a hollow shaft 85 which opens into the cavity 112a of the head piece 31 Has openings 85a. As indicated by the arrows in Figure 14, then occurs a mixture of compressed air through the openings 119a of the annular distributor body 119 and material to be distributed. Another way to reinforce the material leakage on the distributor body is shown in FIG. After that - as indicated at 120- the exhaust air is passed into the mixing chamber 74 and from there together with the distributing material is introduced into the cavity 112a of the head piece 31, from where the Mixture of material to be distributed and compressed air through openings 119a of the Distributor body 119 is pressed into gap 67.

FIG. 16 shows a modification compared to FIG. 15 in that the exhaust lines 120a of the air motor 114 basically as in the case of FIG Figure 13 are guided to the outside. However, there are branch lines on the exhaust lines 120b closed, which via valves or pumps 120c in the Hischkamrner 74 open. In this way, for example, the figure 15 the pressure and the amount of the material to be distributed in the cavity 112a of the head piece to regulate the compressed air introduced.

Finally, FIG. 17 shows a modification in which the head piece 3i has a distributor body 19b, which is located on the outer circumference after the outlet of the device is tapered. In this way, the baffle and guide wall 66 can be cylindrical be formed and nevertheless the gap 67 has a cross section in the manner of a Laval nozzle have m2t cngem area and widening area 3.

Figures 18 to 20 show embodiments of aerosol generators, which can be mounted on missiles or other self-propelled devices.

As shown, the driving force is provided by a rear-mounted, Suitable rocket propellant 130 is applied, which is in a cylindrical housing 13] is housed. The tanks 89 and 90 are in front of an approach of the housing 131 angeoreinet un 1 effective in relation to the drive unit shielded. According to FIG. 18, the structure of the device is largely that of FIG. 11 similar.

However, the head piece 31 is carried by a freely rotatable shaft 121, which is rotatably mounted in bearings 122 and axially supported. On the front face vane-like turbine elements 123 are attached to the front distributor disk 83b, those acting on the front face when the device is moved Set the head piece 31 in rotation. One surrounding the U) direction substantially cylindrical ring body 124 forms with the tanks 89 and 90 one annular axial passage 125.

In the middle area of the head piece 31 is between the turbine blades or turbine blades 123 an air inlet opening 126 is formed through the ram air can enter the interior space 83c behind the front pane 83b.

In operation, the device equipped with propellant 130 is along a pre-selected path set in motion through the air. The e is at the front Front side of the device dusting air sets the head piece 31 in rotary motion, whereby at the same time an annular column of air ducli the between the head piece 31 and the cylindrical annular body 124 formed gap and the annular channel 125 out will. That from the tanks 89 and 90 via the pump 92 into the rear interior space 82b introduced material is fed together with that through the front inner space 83c Air at the slot 71 in the gap 67 and - as far as it is coarser material particles acts, against the baffle and guide wall 66 on the inner surface of the Rin (body 124 led. The way of working is practically the same as in the example of FIG. 11 with the difference that the aerosol is guided through the annular channel 125 and at the rear of the device between the cylindrical ring body 124 and the Propellant housing 131 exits.

In the example of FIGS. 11 and 12, there is again a rocket propellant 130 is provided, which is mounted within a cylindrical housing 131. At the front end face of the device is in turn arranged the head piece 31, the In this example it is designed similarly to the device according to FIGS. 13 to 17 is. The tanks 89 and 90 for the materials to be distributed are in front of the rocket housing 131 and arranged in isolation from this. The head piece 31 sits freely on one rotatable shaft 121 which runs in the Lajcrn 122. Also in this example it bears the Device an aerodynamically designed ring body 124, between this ring body 124 and the tanks 89 and 90 an annular passage 125 is formed through the that in the gap 67 in the interaction between the head piece 31 and the baffle and guide wall 66 formed aerosol flows through it.

The baffle and guide wall is through again in this example a region of the inner surface of the aerodynamically designed ring body 124 is formed.

On the front face of the head piece 31, namely the front An arrangement of turbine blades 123 is attached to the end face of the distributor wall 113, which are designed for this, through the air trapped in front of the device during its flight to be set in rotation and thus also the head piece 31 in rotary motion offset. As indicated in Figure 19 and Figure 20 by arrows, are in the distributor plate 113 openings are made, through the trapped air from the area of the turbine blades 123 can enter the interior 112a of the head piece 31. This air supports the leakage of material through the annular manifold body 119, this Material through overpressure and externally operated valves 92a and lines 91 is guided from the tanks 89 and 90 into the interior of the head piece 31. Of the Overpressure in tanks 89 and 90 can for example generated thereby be that the shaft 121 of the head piece 31 is hollow and so on the front end face of the head piece 31 accumulated air into the interior of the tank 89 and 90 lets in.

Another feature of the device according to Figures 18 and 1.9 is in that the front end region of the aerodynamic ring body 124 narrows somewhat is to in this way the baffle and guide wall formed in this narrowed area 66 to be laid directly in the area of the gap 67. As a result, the gap continues to grow its lower exit end in Figures 19 and 20; i.ne extension in the manner of a cross section of a Laval nozzle. In this way, the flow rate of the generated aerosol can be effectively increased.

In the example of FIGS. 19 and 20, the aerodynamic ring can 124 can also be used as an additional tank, optionally divided into two or more additional tanks with connection line to the main tanks 89 and 90 and in Valves 127 used in these connecting lines. In operation of the device the arrangement is created by the air that has built up on the front face of the head piece 3 of turbine blades 323 are rotated, which in turn causes the kopt piece 31 itself rotates The ~ ~ ~ Escape of the material from the annular Distributor body 119 in the gap 67, the impact of coarser material particles against the baffle and guide wall 66 and the formation of the aerosol in the gap 67 take place in the same way as above in connection with FIGS. 13 to 17 explained. The aerosol thus formed then flows through the annular channel 125 to then under the control of the additional annular guide wall 128 at the rear In the area of the device as an aerosol cloud.

In both embodiments according to FIGS. 18 to 20, the pumps are used 92 out of operation or keep the valves 92a closed until the rocket propellant 130 burned out or is automatically dropped.

As an example, FIG. 21 shows a device for generating aerosol clouds, for attaching to a powered vehicle, for example an airplane Helicopter, an automobile or the like is designed. The device has a Head piece 31 in a basic structure similar to that of Figure 8, but with an arrangement of turbine blades to drive the pair of distributor disks 22, 23 in rotation 123 is provided. The head piece 31 with the turbine blades 123 is in the end face Opening 100 of an aerodynamic Ring body 124 used and freely rotatable with the shaft 121 in bearings 122. Behind the head piece 31 are again two tanks 89 and 90 attached, the externally operated pumps 92 and Lines 91 are in communication with the mixing space 74. In the area of the head piece 21, the inner surface of the aerodynamic ring body 124 forms the impact and guide surface and together with the circumference of the head piece 31, the gap 67. Between the distributor disks 82 and 83, in turn, the outlet slot 71 is formed for the material to be distributed. The gap 67 goes into one between the aerodynamic ring body 124 and the tanks 89 and 90 formed annular passage 125 over, which in turn to the central Outlet 125a leads. The aerodynamic ring body 124 can be used as an auxiliary tank will. For example, it can be divided into two additional tanks, which are connected via lines and valves 127 are in communication with tanks 89 and 90.

FIG. 22 shows a device which is provided in particular for generating foam is and to a closely driven vehicle, for example an airplane, a helicopter, ei Automobile or the like. With this foam generator, the on the one hand, air pent up on the front side due to movement in the atmosphere used as a foaming agent and on the other hand the same for generation the rotational movement of the head piece 31 with the distributor disks 82 and 83 is used. This foam generator has an air collection and inlet opening on the front 100, in which a turbine 101 driven by the accumulated air on the Drive shaft 85 which extends axially through the housing 102 of the foam generator is seated. The outlet opening 60 of the foam generator is arranged at its rear end and again with a baffle and guide wall that widens towards the outlet 66 equipped with the peripheral edge of the head piece 31 or

of distributor disks 82 and 83 forms an annular gap 67. The width of this gap is adjustable in that the entirety of the turbine 101, drive shaft 85 and distributor disks 82, 83 as well as the one between the turbine 101 and the distributor disks 82 and 83 arranged tanks 98, 90 axially in the housing 102 is adjustable and lockable with devices not shown. the Width adjustment of the slot 71 on the circumference of the head piece 31 between the distributor disks 82 and 83 takes place with an adjusting device 85, for example analogous to the device according to Figure 8.

In contrast to the example according to FIG. 8, the housing 102 is an additional tank 103 formed, one of which is flexible Line 104 via one of externally controlled metering pump 105 or a corresponding metering valve with the Mixing chamber 74 is connected, into which also the metering pumps controlled from the outside 92 or

Feed lines 91 guided by distributor valves from the tanks 89 and 90 flow. Apart from the type of generation of the foaming in the ring-shaped Gap 57 and the air flow used for the rotational movement of the head piece 31 or the rotary movement of the distributor disks 82 and 83 is the mode of operation of the foam generator according to FIG. 22 analogous to that of the device according to FIG. 7.

As far as the devices shown in the examples are as Schaurnerzeucier come into consideration, they also offer the possibility of inert liquid, For example, water to use as @rucmedium, the foam-forming material from the material outlet, accelerates and regenerates the baffle. At the baffle will then form the mixture of inert liquid and Schaur The material is finely divided and causes the air necessary for the formation of chaium to record. Those to speed up; of the Sciiaunbi loading material used: is always set under relatively high pressure, for example in the range of 4 bar. This method of foaming using inert liquid offers the additional advantage that the mixing ratio between inert liquid and foam-forming material can be adjusted. This can be special Be important when the foam is used as a carrier for special treatment agents, for example Microorganisms should be used and the tolerance of these treatment agents with the foam forming material is critical.

The one explained above that can be carried out with the devices according to the invention The second method of foam formation also offers the possibility of modification, the foam to introduce the forming material not as a liquid but as a powdery material, that is dissolved or finely suspended in the inert liquid, so only together to represent the actual foaming agent with the inert liquid.

For a better understanding, the following is explained above, for example Embodiments of the invention referenced: In a device according to Figure 1 and 2 would be through the central tube 37 inert liquid, preferably water, under pressure of for example to supply 4 bar. This inert liquid would then be liquid or entrain powdery, foam-forming material from the material outlet 33 and lead against the baffle 35. Analogue would also be in the exemplary embodiment according to Figure 3 and 4 zu.verfahren. Likewise, could also be done in a similar way for a device Figure 5 and 6 are worked.

In the case of a device according to FIG. 7, one feed channel can be used 73 inert liquid under high pressure, for example in the range of 4 bar, and through the second feed channel 73 liquid or powdery foam-forming Material to be introduced. In the mixing chamber 74 is then a mixture of inert Liquid and foam-forming material generated. This mixture is in the gap between the distributor disks 62 and 63 thrown radially outward and with high speed through the annular outlet slot 71 against the baffle 66 injected. As explained above, air is passed through the annular gap 67 blown.

In all other exemplary embodiments explained above, with a stationary or rotating head piece 31 would be analogous to e.g. Figure 7 in the interior of the head piece 31 the desired mixture of inert liquid and foam-forming material and through the circumferential slot cles head piece 31 against the baffle 66 lead.

So much for air or something else in the case of the individual exemplary embodiments qasform medium for accelerating the foam-forming material within the Head piece 31 can be used in addition to the inert liquid this Air or instead of this air can be introduced.

All reproduced in the claims, the description and the drawing blerlcmalo can be essential on its own or in any conceivable combination Be of importance to the invention.

Claims (1)

P a t c n t a n s p r ti c h e 1) Device for distributing liquids and powdered materials with formation of aerosol or foam, at the facilities to generate a flow of gaseous propellant medium past an outlet for the liquid or powdery material, a material outlet on the front side covering head piece and at least one at a distance from the material outlet Impact wall at least for the material particles coming out of the material outlet in this way are arranged to each other so that the baffle catches coarse material particles, characterized in that the baffle wall (3448,45) at the same time as a guide wall for the drive medium flow is formed and together with the head piece (31) a annular gap (36,67) forms through the area of this baffle and guide wall (36,48,66) as a sliding guide surface for the entirety of the propellant medium and in it to distribute the material passes through it. 2) Device according to claim 1, characterized in that the head piece (3) is designed to generate a flow of gaseous propellant medium, this flow via the material outlet (33,71) and along the surface of the impact and guide wall (35,48) and the material particles coming out of the material outlet (33'fl) () to direct the impact against the impact and guide wall (3r, 48). 3) Device according to claim 1, characterized in that the impact and guide wall t48) designed as a curved surface on the head piece (31) itself is. 4) Device according to claim 1 or 2, characterized in that the baffle and guide wall (66) is funnel-shaped towards its open end is designed to expand in the manner of a LavalY nozzle. 5) Device according to claim 4, characterized in that the impact and guide wall (35,66) and the head piece (31) are axially adjustable relative to one another are. 6) Device according to one of claims 1 to 5, characterized in that that the baffle and guide wall (35,48,66), the head piece (2 {, and the between the two gap (36, 67) formed rotationally symmetrical and coaxial with one another are arranged. 7) Device according to one of claims 1 to 5, characterized in that that the head piece (31) and the material outlet (33) are axially relative to one another are adjustable. 8) Device according to one of claims 1 to 6, with one in substantially radially outwardly directed outlet nozzles opening central channel for the gaseous Propellant and an annular channel or channel bundle arranged coaxially with this for the material to be distributed, characterized in that the annular channel respectively. the baffle and guide wall (35) coaxially surrounding the bundle of ducts is open in the flow direction of the gaseous propellant in the central channel (3I) and the head piece (31) inserted into the open side of the baffle and guide wall (35) is, where the head piece (31> at its the ring channel or the channel bundle ( facing side with at least one annular deflecting surface (34) for the gaseous Propellant is formed. 9.) Device according to one of claims 1 to 7, characterized in that that the material outlet (1 '> on the circumference of the head piece (31), in the between the headpiece (31) and the baffle and guide wall (a) formed Gap (67)), directed essentially against the baffle and guide wall (66) is arranged. 18) Device according to claim 8, characterized in that the Head piece (38) is formed by a pair of distributor disks (62,63,82,88), which on its circumference have an annular outlet slot (71) with respect to one another and with respect to one another the baffle and guide wall (46) leave the annular gap (6Z) and that devices for blowing gaseous medium through parallel to the central axis of the pair of distributor disks g (62,63; 82,83) and the baffle and guide wall (66) are provided, while the Distributor disk pair itself with devices (74; 88) for supplying the to be distributed Material, preferably in its central area, is provided. 11) Device according to claim 9, characterized in that the annular outlet slot (71) of the distributor disk pair (62,63; 82,83) in its Width is adjustable. 12,) Device according to claim 9, characterized in that the Head piece (31) one through a pair of distributor disks (12,1 / 3) and one between the scope on the edges () of the distributor disks (119) formed hollow body, wherein the distributor ring (8l9) has a plurality of outlet channels (119a) extending essentially radially to the head piece (3+) ) and the interior (112a) of the head piece (31) to the supply of the to distributing material is connected. 13) Device according to claim 12, characterized in that the Interior (112a) of the head piece t31) extends radially outwards towards the distributor ring (119)) expanded. 14) Device according to claim 11 or 12, characterized in that that the outlet channels (119a) in their cross section on the material to be distributed are matched and a cross-sectional area in the range between O, onim and J ee2 exhibit. 15) Device according to claim 13, characterized in that the Outlet channels (119a) circular cross-section with a diameter in the range between 0.2mm and 0.55mm. §) Device according to / claim 9, characterized in that the head piece (31) is formed by at least three distributor disks (82, 83a, 83b, 82 ', 83) between which two Inner spaces (82b, 83c) and two on their peripheral edges ring-shaped outlets (83e, 71; 71, 71 ') arranged axially one behind the other as ring-shaped Outlet slot (7r and / or distributor ring (af9) with radial channels (d9Q ) are provided, the two annular outlets (83e, 71; t; 71 ')) essentially radially in between the head piece (31) and the baffle and guide wall (66) formed, annular gap (67,67 ') are directed and each of the between the Distributor disks formed interiors (82b, 83c) on feed devices for material to be distributed is connected. 17) Device according to one of claims 9 to 16, characterized in that that the head piece (31) is designed as a centrifugal rotor and in the axis of symmetry the rotationally symmetrical baffle and guide wall (66) is rotatably mounted. 18) Device according to claim 17, characterized in that the Aerosol or foam generator unit (3} as mobile, with its own feed drive equipped or to be attached to a vehicle such as an airplane or helicopter Unit formed and on its front with air inlet opening (apo) and therein more appropriate, the rotary drive for the Headjoint (31) (31) forming air turbine (101,123) is equipped. 19) Device according to claim 18, characterized in that the Head piece (31) directly behind the air turbine (123) in the air inlet opening (d ° O) is arranged, the peripheral wall of the air inlet opening (/ °°) <00) the impact and guide wall (66) forms. 20) Device according to claim 18, characterized in that the Head piece (31) at an axial distance behind the air turbine (101) and the air inlet opening (100) is arranged and behind the air turbine (101) essentially axially to the Housing (102) of the aerosol or Foam generator guided transfer channels () for introducing the air coming from the air turbine (location) into the gap (67)> between the impact and guide wall and the periphery of the head piece (3d) are formed. 21) Device according to claim 17, characterized in that the Aerosol or foam generator unit operated with compressed gas, preferably compressed air, is formed and for this purpose a compressed gas supply to the between the baffle and guide wall (66) and the circumference of the head piece (31) formed gap (6i) and a compressed gas -motor <Ä1 (/ 18) as a rotary drive for the head piece (31) contains. 22) Device according to claim 21, characterized in that the through the pressurized gas motor ((114)) guided pressurized gas at least partially into the gap formed between the baffle and guide wall (66) and the head piece (31) (63) is performed. 23) Device according to claim 17, characterized in that for the rotary drive of the head piece (31 an electric motor (8) or internal combustion engine is provided, which also has a fan (93) to form a through the between the baffle and guide wall (66) and the circumference of the head piece (3) formed gap (6 drives the air flow to be blown. 24) Device according to one of claims 9 to 23, characterized in that that the baffle and guide wall (46) at one end of the housing (61,102) of the aerosol respectively. Foam generator (30) than expanding towards the outlet Wall area is formed and the head piece (31) optionally with its rotary drive (101) is axially adjustable within this housing (61,102). 25) Device according to one of claims 9 to 24, characterized in that that inside the aerosol or foam generator (30)) behind the head piece ( 3!) Storage container (& °) for the materials to be distributed or foamed are attached, these reservoirs (& 9,? o) with supply lines to a central inlet on the back of the head piece (31) zip) are provided. 26) Device according to one of claims 9 to 25, characterized in that that on the peripheral wall (102) of the aerosol or foam generator housing () storage container (103,124) are provided for the materials to be distributed or foamed and via flexible lines, if necessary, to the rear central inlet () of the Head piece (31) are connected. 27) Device according to claim 25 or 26, characterized in that that in the lines (91, 104) between the storage containers (89, 90, 103, 2Y ) and the rear inlet () of the head piece (31) externally controllable metering devices (92,92a, 105) are inserted. 28) Device according to one of claims 9 to 27, characterized in that that the rear central inlet () of the head piece (3) with a backwards extending cylindrical inlet collar (88) is formed. 29) Device according to claim 16 and 28, characterized in that when designing the head piece (38) with two or more interior spaces (826, 83c, 82d) at the rear central inlet () of the head piece (31) to the rear extending, coaxial, cylindrical inlet collars (88,89 ') are provided. 30) Device according to one of claims 16 to 29, characterized in that that the head piece (3+) has a rearward, stationary pair of distributor disks (611 63) and a front, rotating pair of distributor disks (62 »83 contains.