WO2006108411A1 - Device for removing soot particulates from exhaust gases - Google Patents
Device for removing soot particulates from exhaust gases Download PDFInfo
- Publication number
- WO2006108411A1 WO2006108411A1 PCT/DE2006/000669 DE2006000669W WO2006108411A1 WO 2006108411 A1 WO2006108411 A1 WO 2006108411A1 DE 2006000669 W DE2006000669 W DE 2006000669W WO 2006108411 A1 WO2006108411 A1 WO 2006108411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pot
- sleeve
- outer container
- exhaust gases
- interior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/0214—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters with filters comprising movable parts, e.g. rotating filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0231—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/037—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
- F01N2290/02—Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement
- F01N2290/06—Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement driven by auxiliary drive
Definitions
- the invention relates to a device with which soot particles can be removed from exhaust gases, in particular from exhaust gases from diesel fuel-powered commercial vehicles or power generator units.
- the device therefore serves to reduce the contamination of the outside air with soot particles.
- a NOx-related exhaust gas cleaning is possible through effects on the engine management.
- the present invention seeks to provide an improved device of the type mentioned.
- the device according to the invention comprises a device for the active and actual generation of a turbulent flow.
- an impeller, paddle wheel or a link head provided with chain-like links or rod-shaped, perforated links is set in rotation, in a gap of a double-walled housing.
- the inner wall of this housing is formed in the manner of an open-topped pot. Further embodiments of this housing or this double-walled housing can be found in the further features of claim 1.
- a rotating gas roller In the space between the inner pot and the outer container of the double-walled housing, a rotating gas roller is generated, which continues upward and in the annular space between the upper edge of the pot and protruding into the pot from above sleeve with the particular tangentially introduced into this area soot-laden exhaust gases mixed.
- the gas roller produced in the gap also brings the air mass in the interior of the pot in rotation. This rotation can generate very high temperatures in the radially outer layer of this gas cylinder. Together with the long residence time of the soot-laden gases in the device according to the invention caused by the gas roller flow, the soot particles can burn and thus be eliminated from the exhaust gases.
- Fig. 1 is a partially sectioned cross section through a device according to the invention.
- An open-topped pot 12 the upper edge of the pot has an inwardly facing, less than 90 ° (old degree) having bend 14, sits at a distance, leaving a gap 16, in an outer container 18 of a device 10.
- the pot 12 is attached via webs not shown on the outer container 18. With this device 10 soot particles from soot-laden exhaust gases 92 can be eliminated.
- In the region of the outer wall 20 of the pot 12 and the bend 14 of the outer container 18 has a shape of the pot 12 comparable contour.
- the existing between the outer container 18 and the pot 12 intermediate space 16 is thus in the region of the outer wall 20 and the bend 14 of the pot 12 in the radial direction about the same width.
- the pot 12 and the outer container 18 are circular in plan.
- the outer container 18 terminates at the top with an annular edge 22.
- This annular edge 22 frames an opening 24 in the outer container 18.
- This opening 24 is located downwardly in the direction of the pot bottom 26 extending sleeve 28.
- the bottom open sleeve 28 has a finite distance 30 from the bottom of the pot 26. With its upper end edge, the sleeve 28 is gas-tight at the annular edge 22 and thus to the outer container 18 connected.
- the sleeve 28 is closed with a double collar plate 34 partially closing it.
- the outer of the two shrouds 34 is releasably secured to the annular edge 22 via a screw connection.
- the lower end of a tube 40 is fixedly mounted.
- the upper end of the tube 40 terminates outside of the outer container 18.
- the tube axis 42 of the tube 40 coincides with the sleeve axis 44.
- the inner diameter 54 of the tube 40 is smaller than the inner diameter of the sleeve 28 and also smaller than the outer diameter 56 of the sleeve 28.
- the tube 40 can in the present example, together with the shrouds 34 and the sleeve 28 - which parts are firmly connected to each other - after Loosen their screw fasteners on the ring edge 22, of which screw connections two screw axes 46, 48 are shown, are removed from the outer container 18.
- the interior 50 of the pot 12 is then easily accessible from the outside.
- the entire upper region 58 of the outer container 18 is additionally detachably fastened via a plurality of screw connections 62, 64 at the lower region 60 of the outer container 18. These fittings 62, 64 are arranged in terms of height in the region of the outer wall 20.
- intermediate space 16 projects via a hydraulic motor 68 drivable output shaft 70 into it.
- At the present on the front side of this output shaft hub 72 72 are circumferentially distributed two wreaths of link chains 74, 76 are arranged. The two rings with the link chains 74 and 76 are parallel to each other. Following the curved outline of the container bottom 66, the lower link chains 76 are radially shorter than the link chains 74 of the upper rim.
- the existing for performing the output shaft 70 in the pot bottom 26 opening is closed gas-tight manner via an insulation 78.
- the hub axle 80 is in alignment with the sleeve axle 44.
- Centric is in the bottom of the pot 26 one of the hub 72 opposite opening 82 available.
- This opening 82 forms the front-side lower opening of a pipe section 84, which is fastened to the floor 26 and projects into the interior of the sleeve 28.
- the pipe section 84 extends approximately into half the height of the sleeve 28 inside.
- the outer diameter 86 of the pipe section 84 in the present example case is not greater than the inner diameter 54 of the outgoing from the outer container 18 pipe 40th
- the pot 12, the sleeve 28, the pipe section 84 and the tube 40 are made in the present example of heat-resistant material, in particular made of stainless steel or ceramic.
- the inside of the pot 12 and also the inside of the sleeve 28 is additionally lined with a refractory lining 88. This covering 88 also abuts against the inside of the rim plates 34. Also, the outside of the pipe section 84 could be provided with such a coating.
- an exhaust pipe 90 projects tangentially into the outer container 18.
- soot-laden exhaust gases 92 can be fed into the upper region of the outer container 18.
- Exhaust gases 94 removed from soot particles leave the outer container 18 through the pipe 40. The flow of gas within the outer container 18 and the resulting soot separation occurs in the following manner.
- the density distribution within the gas cylinder 100 in the axial direction, ie in the direction parallel to the sleeve axis 44, can be particularly easily influenced by baffles which protrude from the outer wall 20 of the pot 12 into the inner space 50.
- baffles which protrude from the outer wall 20 of the pot 12 into the inner space 50.
- circumferentially distributed four identical baffles are attached to the outer wall 20.
- Each of the baffles is about 50 millimeters long and about 20 to 30 millimeters wide in the circumferential direction of the pot 12.
- the baffles are inclined in the circumferential direction of the pot 12. According to their upwardly or downwardly oriented bevel in the axial direction, the gas roller 100 flowing from top to bottom along the outer wall 20 can be partially compressed or expanded.
- the distance of the rotating in the pot 12 gas roller 100 can be increased or decreased.
- the baffles need not necessarily be gas-tight connected to the outer wall 20; It is also possible to attach them at a small distance from the outer wall 20 at the same.
- the number, inclination orientation and positional arrangement of the baffles are selected depending on the pressure and temperature conditions and the composition of the introduced exhaust gases according to so that in the effluent from the tube 40 exhaust gases 94 as possible no more soot particles are present.
- baffles 112, 114 are shown in Fig. 1, two of the same height arranged four baffles 112, 114 are shown.
- the baffles 112, 114 are aligned circumferentially inclined, so that the left baffle 112 can be seen with its underside and the right baffle 114 with its top in the drawing.
- the gas cylinder 100 is thereby compressed - upwards.
- the gas cylinder mixes with the introduced soot-laden exhaust gases 92.
- the gas cylinder takes these soot-laden exhaust gases 92 in the interior 50 with. Due to the strong rotation generated in the interior, the soot particles present in the exhaust gases 92 are deposited on the inside of the pot 12 and there in particular on the inside of the pot outer wall 20.
- the gas cylinder 100 generates a very strong heating of the exhaust gases 92 present in it, so that at temperatures of about 600 ° C (degrees Celsius), the soot particles can burn. This combustion is made possible by the relatively long residence time of the exhaust gases inside the container 18 and there in the interior of the pot 12.
- the exhaust gases 92 do not flow through the device 10 along the shortest path between the exhaust pipe 90 and the pipe 40, but remain in the apparatus 10 for a very long time due to the generation of the gas cylinder 100. Comparative measurements have shown that instead of the prior art comparable residence time of 0.3 seconds, the exhaust gases 92 are the fivefold time in the device 10. Together with the very high temperatures generated in the gas cylinder 100, oxidation of carbon black into carbon dioxide can be effected by means of oxygen.
- the required high temperatures of about 600 ° C are at a cold start of a diesel-powered commercial vehicle, such as a correspondingly powered truck by far not available.
- a cold start the soot particles will initially build up directly on the inside of the pot 12.
- the gas cylinder is formed directly with the rotation of the link chains 74, 76.
- the inner wall of the pot 12 must therefore be designed so that there is sufficient space for the deposition of soot particles during the operating period, in which the temperature required for the oxidation of the carbon black inside the pot 12 does not exist yet.
- particulate filters are additionally installed in the interior 50 and there, for example, in the region of the outside the sleeve 28 and in particular in the region of the transition from the inner space 50 of the pot 12 into the inner space 104 of the sleeve 28, that is to say in the area of the flow arrows 102.
- particulate filters which are illustrated by the reference numeral 106 in the drawing by way of example, can be made of ceramic or sintered metal materials (porous sintered sheets). With such particle filters can be connected upstream of one of the device 10 Oxydationskatalysator NO2 formed there to supplement the oxidation of soot particles in the device 10 are used.
- ash accumulates, which should be removed from the device 10.
- the ash for example, can be discharged continuously through a separate opening from the pot 12 and the outer container 18 into a collecting container.
- This opening can be connected to an in the pot wall 20 inside circumferentially arranged annular groove.
- the collecting container may be upstream of a gravity cyclone, so that the proportionally heavier ash particles fall into the receptacle, while the lighter soot components back into the pot 12 - for example, via the exhaust pipe 90 - can be returned.
- gases can be introduced from the interior 104 of the sleeve 28 according to in the drawing below in the gap 16 (arrow 110) with a correspondingly open closure.
- gases can be introduced from the interior 104 of the sleeve 28 according to in the drawing below in the gap 16 (arrow 110) with a correspondingly open closure.
- gases can be introduced from the interior 104 of the sleeve 28 according to in the drawing below in the gap 16 (arrow 110) with a correspondingly open closure.
- gases can be introduced from the interior 104 of the sleeve 28 according to in the drawing below in the gap 16 (arrow 110) with a correspondingly open closure.
- Such recirculation of gases is useful, for example, in order to lead moisture out of the interior of the pot 12 when the interior space 50, 104 is not sufficiently heated, which occurs when the dew point is undershot. This moisture can then back again by the rotation of the link chains 74, 76 through the gap 16 therethrough back into the interior 50 is initiated and heated there.
- the operation of the device according to the invention is influenced by changing the speed of the link chains 74, 76 and thus by changing the rotational speed of these members.
- control valves can therefore be omitted.
- the operation of the device according to the invention depends on the speed of circulation of the exhaust gases in the pot 12, the O 2 content and the temperature of the exhaust gases.
- the available O2 and temperature values can be determined via sensors.
- the device according to the invention operates in the vacuum range of about 5 to 10 millibars.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
BESCHREIBUNG DESCRIPTION
Vorrichtung zum Entfernen von Rußpartikeln aus Abgasen TECHNISCHES GEBIETDevice for removing soot particles from exhaust gases TECHNICAL FIELD
Die Erfindung betrifft eine Vorrichtung, mit der Rußpartikel aus Abgasen, wie insbesondere aus Abgasen von mit Diesel-Kraftstoff betriebenen Nutzfahrzeugen oder Stromerzeugeraggregaten entfernt werden können. Die Vorrichtung dient daher dazu, die Verunreinigung der Außenluft mit Rußpartikeln zu vermindern. Neben dieser Rußpartikel betreffenden Abgasreinigung ist eine NOx betreffende Abgasreinigung über Einwirkungen auf das Motormanagement möglich.The invention relates to a device with which soot particles can be removed from exhaust gases, in particular from exhaust gases from diesel fuel-powered commercial vehicles or power generator units. The device therefore serves to reduce the contamination of the outside air with soot particles. In addition to this soot particulate exhaust gas purification, a NOx-related exhaust gas cleaning is possible through effects on the engine management.
STAND DER TECHNIKSTATE OF THE ART
Aus der DE 295 12 149 Ul ist eine derartige Vorrichtung bekannt. Bei dieser Vorrichtung werden die Abgase tangential in das Innere von drei ineinander geschachtelten Rohren eingeleitet. Durch diese tangentiale Einleitung soll sich in dem inneren, sogenannten Wirbelrohr eine rotierende Gasströmung einstellen und dabei eine Aufteilung der Abgase in eine innere und eine äußere Gasströmung erfolgen. Die innere, kältere Gasströmung soll rußfrei sein, während die äußere, heißere Gasströmung rußbeladen ist. Die innere, rußfreie Gasströmung wird axial aus dem einen Ende des Wirbelrohres herausgeführt. Die äußere, rußbeladene Gasströmung wird mehrmals umgeleitet durch die Rohre hindurchgeführt und dann letztlich axial aus dem anderen Ende der Rohranordnung herausgeführt. Die Verweilzeit der rußbeladenen Gasströmung soll infolge der Rotation im Wirbelrohr und durch das mehrmalige Umleiten der Gasströmung ausreichend lange sein, um die in den Abgasen vorhandenen Rußbestandteile zu verbrennen.From DE 295 12 149 Ul such a device is known. In this device, the exhaust gases are introduced tangentially into the interior of three nested tubes. Due to this tangential introduction, a rotating gas flow is intended to be established in the inner, so-called vortex tube and a division of the exhaust gas into an inner and an outer gas flow takes place. The inner, colder gas flow should be soot-free, while the outer, hotter gas flow is soot-laden. The inner, soot-free gas flow is led out axially from the one end of the vortex tube. The outer, soot-laden gas flow is diverted several times through the tubes and then ultimately led out axially from the other end of the tube assembly. The residence time of the soot-laden gas flow should be sufficiently long due to the rotation in the vortex tube and by the repeated redirecting the gas flow to burn the existing in the exhaust soot components.
DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION
Ausgehend von diesem vorbekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine verbesserte Vorrichtung der eingangs genannten Art anzugeben.Based on this prior art, the present invention seeks to provide an improved device of the type mentioned.
Diese Erfindung ist durch die Merkmale des Hauptanspruchs gegeben. Sinnvolle Weiterbildungen der Erfindung sind Gegenstand von sich daran anschließenden weiteren Ansprüchen. Die erfindungsgemäße Vorrichtung beinhaltet eine Einrichtung zum aktiven und tatsächlichen Erzeugen einer Wirbelströmung. Dazu wird ein Gebläserad, Schaufelrad oder ein mit kettenartigen Gliedern oder stabförmigen, gelochten Gliedern versehener Gliederkopf in Rotation versetzt, und zwar in einem Zwischenraum eines doppelwandigen Gehäuses. Die innere Wandung dieses Gehäuses ist in Art eines oben offenen Topfes ausgebildet. Weitere Ausbildungen dieses Gehäuses beziehungsweise dieses doppelwandigen Gehäuses sind den weiteren Merkmalen des Anspruchs 1 zu entnehmen. Im Zwischenraum zwischen dem inneren Topf und dem Außenbehälter des doppelwandigen Gehäuses wird eine rotierende Gaswalze erzeugt, die sich nach oben fortsetzt und sich im Ringraum zwischen dem oberen Topfrand und der von oben in den Topf hineinragenden Hülse mit den in diesen Bereich insbesondere tangential eingeleiteten rußbeladenen Abgasen vermischt. Die im Zwischenraum erzeugte Gaswalze bringt auch die im Innenraum des Topfes vorhandene Luftmasse in Rotation. Durch diese Rotation können sehr hohe Temperaturen in der radial äußeren Schicht dieser Gaswalze erzeugt werden. Zusammen mit der durch die Gaswalzenströmung verursachten langen Verweilzeit der rußbeladenen Gase in der erfindungsgemäßen Vorrichtung können die Rußpartikel verbrennen und damit aus den Abgasen eliminiert werden.This invention is given by the features of the main claim. Meaningful developments of the invention are the subject of subsequent claims. The device according to the invention comprises a device for the active and actual generation of a turbulent flow. For this purpose, an impeller, paddle wheel or a link head provided with chain-like links or rod-shaped, perforated links is set in rotation, in a gap of a double-walled housing. The inner wall of this housing is formed in the manner of an open-topped pot. Further embodiments of this housing or this double-walled housing can be found in the further features of claim 1. In the space between the inner pot and the outer container of the double-walled housing, a rotating gas roller is generated, which continues upward and in the annular space between the upper edge of the pot and protruding into the pot from above sleeve with the particular tangentially introduced into this area soot-laden exhaust gases mixed. The gas roller produced in the gap also brings the air mass in the interior of the pot in rotation. This rotation can generate very high temperatures in the radially outer layer of this gas cylinder. Together with the long residence time of the soot-laden gases in the device according to the invention caused by the gas roller flow, the soot particles can burn and thus be eliminated from the exhaust gases.
Nähere Einzelheiten zu der Ausbildung, zu der Funktionsweise und zu den Vorteilen der Erfindung sind den in den Ansprüchen ferner angegebenen Merkmalen sowie insbesondere auch dem nachstehenden Ausführungsbeispiel zu entnehmen.Further details on the training, the operation and the advantages of the invention are to be taken from the features further specified in the claims and in particular also the following embodiment.
KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING
Die Erfindung wird im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Die einzige Figur zeigt:The invention will be described and explained in more detail below with reference to the embodiment shown in the drawing. The only figure shows:
Fig. 1 einen teilweise geschnittenen Querschnitt durch eine erfindungsgemäße Vorrichtung.Fig. 1 is a partially sectioned cross section through a device according to the invention.
WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION
Ein oben offener Topf 12, dessen oberer Topfrand eine nach innen weisende, weniger als 90° (Altgrad) aufweisende Umbiegung 14 aufweist, sitzt mit Abstand, unter Freilassen eines Zwischenraumes 16, in einem Außenbehälter 18 einer Vorrichtung 10. Der Topf 12 ist über nicht dargestellte Stege am Außenbehälter 18 befestigt. Mit dieser Vorrichtung 10 können Rußpartikel aus rußbeladenen Abgasen 92 eliminiert werden. Im Bereich der Außenwand 20 des Topfes 12 und der Umbiegung 14 besitzt der Außenbehälter 18 eine der Form des Topfes 12 vergleichbare Kontur. Der zwischen dem Außenbehälter 18 und dem Topf 12 vorhandene Zwischenraum 16 ist also im Bereich der Außenwand 20 und der Umbiegung 14 des Topfes 12 in radialer Richtung etwa gleich breit. Der Topf 12 und der Außenbehälter 18 sind im Grundriss kreisförmig.An open-topped pot 12, the upper edge of the pot has an inwardly facing, less than 90 ° (old degree) having bend 14, sits at a distance, leaving a gap 16, in an outer container 18 of a device 10. The pot 12 is attached via webs not shown on the outer container 18. With this device 10 soot particles from soot-laden exhaust gases 92 can be eliminated. In the region of the outer wall 20 of the pot 12 and the bend 14 of the outer container 18 has a shape of the pot 12 comparable contour. The existing between the outer container 18 and the pot 12 intermediate space 16 is thus in the region of the outer wall 20 and the bend 14 of the pot 12 in the radial direction about the same width. The pot 12 and the outer container 18 are circular in plan.
Der Außenbehälter 18 endet oben mit einem Ringrand 22. Dieser Ringrand 22 rahmt eine Öffnung 24 im Außenbehälter 18 ein. In dieser Öffnung 24 sitzt eine sich nach unten in Richtung zum Topfboden 26 erstreckende Hülse 28. Die unten offene Hülse 28 hat einen endlichen Abstand 30 vom Topfboden 26. Mit ihrem oberen Stirnrand ist die Hülse 28 gasdicht an dem Ringrand 22 und damit an dem Außenbehälter 18 angeschlossen.The outer container 18 terminates at the top with an annular edge 22. This annular edge 22 frames an opening 24 in the outer container 18. In this opening 24 is located downwardly in the direction of the pot bottom 26 extending sleeve 28. The bottom open sleeve 28 has a finite distance 30 from the bottom of the pot 26. With its upper end edge, the sleeve 28 is gas-tight at the annular edge 22 and thus to the outer container 18 connected.
Die Hülse 28 ist mit einem sie teilweise verschließenden doppelten Kranzblech 34 verschlossen. Das äußere der beiden Kranzbleche 34 ist am Ringrand 22 über eine Schraubverbindung lösbar befestigt. An der radialen Innenseite der Kranzbleche 34 ist das untere Ende eine Rohres 40 fest angebracht. Das obere Ende des Rohres 40 endet außerhalb des Außenbehälters 18. Die Rohrachse 42 des Rohres 40 fällt mit der Hülsenachse 44 zusammen. Der Innendurchmesser 54 des Rohres 40 ist kleiner als der Innendurchmesser der Hülse 28 und auch kleiner als der Außendurchmesser 56 der Hülse 28. Das Rohr 40 kann im vorliegenden Beispielsfall zusammen mit den Kranzblechen 34 und der Hülse 28 - welche Teile fest miteinander verbunden sind - nach Lösen ihrer Schraubbefestigungen am Ringrand 22, von welchen Schraub Verbindungen zwei Schraub achsen 46, 48 dargestellt sind , von dem Außenbehälter 18 weggenommen werden. Der Innenraum 50 des Topfes 12 ist dann von außen leicht zugänglich.The sleeve 28 is closed with a double collar plate 34 partially closing it. The outer of the two shrouds 34 is releasably secured to the annular edge 22 via a screw connection. At the radial inner side of the rim plates 34, the lower end of a tube 40 is fixedly mounted. The upper end of the tube 40 terminates outside of the outer container 18. The tube axis 42 of the tube 40 coincides with the sleeve axis 44. The inner diameter 54 of the tube 40 is smaller than the inner diameter of the sleeve 28 and also smaller than the outer diameter 56 of the sleeve 28. The tube 40 can in the present example, together with the shrouds 34 and the sleeve 28 - which parts are firmly connected to each other - after Loosen their screw fasteners on the ring edge 22, of which screw connections two screw axes 46, 48 are shown, are removed from the outer container 18. The interior 50 of the pot 12 is then easily accessible from the outside.
Der gesamte obere Bereich 58 des Außenbehälters 18 ist zusätzlich über mehrere Verschraubungen 62, 64 am unteren Bereich 60 des Außenbehälters 18 lösbar befestigt. Diese Verschraubungen 62, 64 sind höhenmäßig im Bereich der Außenwand 20 angeordnet. In den zwischen dem Topfboden 26 und dem Behälterboden 66 vorhandenen Zwischenraum 16 ragt eine über einen hydraulischen Motor 68 antreibbare Abtriebswelle 70 hinein. An der an der Stirnseite dieser Abtriebswelle 70 vorhandenen Nabe 72 sind umf angsmäßig verteilt zwei Kränze von Gliederketten 74, 76 angeordnet. Die beiden Kränze mit den Gliederketten 74 beziehungsweise 76 liegen parallel übereinander. Der gebogenen Umrissform des Behälterbodens 66 folgend, sind die unteren Gliederketten 76 radial kürzer als die Gliederketten 74 des oberen Kranzes. Dadurch können die Gliederketten 74, 76 bei ihrer Rotation nicht von innen an den Topfboden 26 stoßen. Die zum Durchführen der Abtriebswelle 70 im Topfboden 26 vorhandene Öffnung ist über eine Isolierung 78 gasdicht verschlossen. Die Nabenachse 80 fluchtet mit der Hülsenachse 44.The entire upper region 58 of the outer container 18 is additionally detachably fastened via a plurality of screw connections 62, 64 at the lower region 60 of the outer container 18. These fittings 62, 64 are arranged in terms of height in the region of the outer wall 20. In the present between the bottom of the pot 26 and the container bottom 66 intermediate space 16 projects via a hydraulic motor 68 drivable output shaft 70 into it. At the present on the front side of this output shaft hub 72 72 are circumferentially distributed two wreaths of link chains 74, 76 are arranged. The two rings with the link chains 74 and 76 are parallel to each other. Following the curved outline of the container bottom 66, the lower link chains 76 are radially shorter than the link chains 74 of the upper rim. As a result, the link chains 74, 76 can not hit the bottom of the pot 26 from the inside during their rotation. The existing for performing the output shaft 70 in the pot bottom 26 opening is closed gas-tight manner via an insulation 78. The hub axle 80 is in alignment with the sleeve axle 44.
Zentrisch ist im Topfboden 26 eine der Nabe 72 gegenüberliegende Öffnung 82 vorhanden. Diese Öffnung 82 bildet die stirnseitige untere Öffnung eines Rohrstückes 84, das an dem Boden 26 befestigt ist und in den Innenraum der Hülse 28 hineinragt. Im vorliegenden Fall ragt das Rohrstück 84 etwa bis in die halbe Höhe der Hülse 28 hinein. Der Außendurchmesser 86 des Rohrstückes 84 ist im vorliegenden Beispielsfall nicht größer als der Innendurchmesser 54 des aus dem Außenbehälter 18 herausführenden Rohres 40.Centric is in the bottom of the pot 26 one of the hub 72 opposite opening 82 available. This opening 82 forms the front-side lower opening of a pipe section 84, which is fastened to the floor 26 and projects into the interior of the sleeve 28. In the present case, the pipe section 84 extends approximately into half the height of the sleeve 28 inside. The outer diameter 86 of the pipe section 84 in the present example case is not greater than the inner diameter 54 of the outgoing from the outer container 18 pipe 40th
Der Topf 12, die Hülse 28, das Rohrstück 84 und das Rohr 40 bestehen im vorliegenden Beispielsfall aus hitzebeständigem Material, wie insbesondere aus Edelstahl oder auch aus Keramik. Im vorliegenden Beispielsfall ist die Innenseite des Topfes 12 und auch die Innenseite der Hülse 28 zusätzlich mit einem feuerfesten Belag 88 ausgekleidet. Dieser Belag 88 liegt auch an der Innenseite der Kranzbleche 34 an. Auch die Außenseite des Rohrstückes 84 könnte mit einem solchen Belag versehen sein.The pot 12, the sleeve 28, the pipe section 84 and the tube 40 are made in the present example of heat-resistant material, in particular made of stainless steel or ceramic. In the present example case, the inside of the pot 12 and also the inside of the sleeve 28 is additionally lined with a refractory lining 88. This covering 88 also abuts against the inside of the rim plates 34. Also, the outside of the pipe section 84 could be provided with such a coating.
Im oberen Bereich 58 des Außenbehälters 18 ragt eine Abgasleitung 90 tangential in den Außenbehälter 18 hinein. Durch diese Abgasleitung 90 können rußbeladene Abgase 92 in den oberen Bereich des Außenbehälters 18 hineingeleitet werden. Die von Rußpartikeln befreiten Abgase 94 verlassen den Außenbehälter 18 durch das Rohr 40. Die Gasströmung innerhalb des Außenbehälters 18 und die dabei erfolgende Rußabscheidung erfolgt auf folgende Weise.In the upper region 58 of the outer container 18, an exhaust pipe 90 projects tangentially into the outer container 18. By this exhaust pipe 90 soot-laden exhaust gases 92 can be fed into the upper region of the outer container 18. Exhaust gases 94 removed from soot particles leave the outer container 18 through the pipe 40. The flow of gas within the outer container 18 and the resulting soot separation occurs in the following manner.
Mittels des hydraulischen Motors 68 werden die Gliederketten 74, 76 in Rotation versetzt. Dadurch wird im Zwischenraum 16 eine rotierende Gaswalze erzeugt. Diese Gaswalze ist auch im Zwischenraum zwischen der Umbiegung 14 des oberen Topfrandes und dem oberen Bereich 58 des Außenbehälters 18 vorhanden. Diese rotierende Gaswalze pflanzt sich durch den Ringspalt 96, der zwischen dem oberen Ende 98 der Umbiegung 14 des Topfes 12 und der Hülse 28 vorhanden ist, nach unten in den Innenraum 50 des Topfes 12 fort. Auch die in dem Innenraum 50 vorhandene Luftmasse wird dadurch zwangsweise in eine rotierende Gaswalze 100 gebracht. Diese Gaswalze 100 rotiert von unten (Pfeil 102) in den Innenraum 104 der Hülse 28 hinein und strömt dann oben aus dem Rohr 40 heraus ins Freie.By means of the hydraulic motor 68, the link chains 74, 76 are set in rotation. As a result, a rotating gas roller is generated in the intermediate space 16. This gas cylinder is also present in the space between the bend 14 of the upper pot edge and the upper portion 58 of the outer container 18. This rotating gas cylinder propagates through the annular gap 96, which is present between the upper end 98 of the bend 14 of the pot 12 and the sleeve 28, down into the interior 50 of the pot 12. The air mass present in the interior 50 is thereby forcibly brought into a rotating gas cylinder 100. This gas cylinder 100 rotates from below (arrow 102) into the interior 104 of the sleeve 28 and then flows out of the tube 40 out into the open.
Die Dichteverteilung innerhalb der Gaswalze 100 in axialer Richtung, also in Richtung parallel zur Hülsenachse 44, lässt sich durch Leitbleche besonders einfach beeinflussen, die von der Außenwand 20 des Topfes 12 aus in den Innenraum 50 hineinragen. Im vorliegenden Beispielsfall sind umfangsmäßig verteilt vier gleiche Leitbleche an der Außenwand 20 befestigt. Jedes der Leitbleche ist in Umfangsrichtung des Topfes 12 etwa 50 Millimeter lang und etwa 20 bis 30 Millimeter breit. Die Leitbleche sind in Umfangsrichtung des Topfes 12 geneigt vorhanden. Entsprechend ihrer in axialer Richtung nach oben oder unten ausgerichteten Schräge kann die von oben nach unten entlang der Außenwand 20 strömende Gaswalze 100 bereichsweise verdichtet oder entspannt werden. Damit kann die Wegstrecke der im Topf 12 rotierenden Gaswalze 100 vergrößert oder verkleinert werden. In axialer Richtung können auch mehrere solcher Leitbleche übereinander angeordnet werden. Die Leitbleche müssen nicht unbedingt gasdicht an der Außenwand 20 angeschlossen sein; es ist auch möglich, sie mit geringem Abstand zur Außenwand 20 an derselben zu befestigen. Die Anzahl, Neigungsausrichtung und lagemäßige Anordnung der Leitbleche werden in Abhängigkeit von den Druck- und Temperatur- Verhältnissen und der Zusammensetzung der eingeleiteten Abgase entsprechend so gewählt, dass in den aus dem Rohr 40 herausströmenden Abgasen 94 möglichst keine Rußpartikel mehr vorhanden sind.The density distribution within the gas cylinder 100 in the axial direction, ie in the direction parallel to the sleeve axis 44, can be particularly easily influenced by baffles which protrude from the outer wall 20 of the pot 12 into the inner space 50. In the present example, circumferentially distributed four identical baffles are attached to the outer wall 20. Each of the baffles is about 50 millimeters long and about 20 to 30 millimeters wide in the circumferential direction of the pot 12. The baffles are inclined in the circumferential direction of the pot 12. According to their upwardly or downwardly oriented bevel in the axial direction, the gas roller 100 flowing from top to bottom along the outer wall 20 can be partially compressed or expanded. Thus, the distance of the rotating in the pot 12 gas roller 100 can be increased or decreased. In the axial direction and several such baffles can be arranged one above the other. The baffles need not necessarily be gas-tight connected to the outer wall 20; It is also possible to attach them at a small distance from the outer wall 20 at the same. The number, inclination orientation and positional arrangement of the baffles are selected depending on the pressure and temperature conditions and the composition of the introduced exhaust gases according to so that in the effluent from the tube 40 exhaust gases 94 as possible no more soot particles are present.
In Fig. 1 sind zwei der in gleicher Höhe angeordneten vier Leitbleche 112, 114 dargestellt. Die Leitbleche 112, 114 sind umfangsmäßig geneigt ausgerichtet, so dass das linke Leitblech 112 mit seiner Unterseite und das rechte Leitblech 114 mit seiner Oberseite in der Zeichnung zu erkennen ist. Die Gaswalze 100 wird dadurch - nach oben - verdichtet.In Fig. 1, two of the same height arranged four baffles 112, 114 are shown. The baffles 112, 114 are aligned circumferentially inclined, so that the left baffle 112 can be seen with its underside and the right baffle 114 with its top in the drawing. The gas cylinder 100 is thereby compressed - upwards.
Im Bereich des Ringspaltes 96 vermischt sich die Gaswalze mit den eingeleiteten rußbeladenen Abgasen 92. Die Gaswalze nimmt diese rußbeladenen Abgase 92 in den Innenraum 50 mit. Durch die in dem Innenraum erzeugte starke Rotation legen sich die in den Abgasen 92 vorhandenen Rußpartikel an der Innenseite des Topfes 12 und dort insbesondere an der Innenseite der Topf-Außenwand 20 ab. Die Gaswalze 100 erzeugt eine sehr starke Aufheizung der in ihr vorhandenen Abgase 92, so dass bei Temperaturen von etwa 600° C (Grad Celsius) die Rußpartikel verbrennen können. Diese Verbrennung wird durch die relativ lange Verweilzeit der Abgase im Inneren des Behälters 18 und dort im Inneren des Topfes 12 möglich. Die Abgase 92 strömen nämlich nicht auf dem kürzesten Weg zwischen Abgasleitung 90 und dem Rohr 40 durch die Vorrichtung 10 hindurch, sondern verweilen durch die Erzeugung der Gaswalze 100 sehr lange in der Vorrichtung 10. Vergleichsmessungen haben ergeben, dass statt einer nach dem Stand der Technik vergleichbaren Verweilzeit von 0,3 Sekunden die Abgase 92 sich die fünffache Zeit in der Vorrichtung 10 aufhalten. Zusammen mit den in der Gaswalze 100 erzeugten sehr hohen Temperaturen kann eine Oxydation von Ruß in Kohlendioxyd mittels Sauerstoff erfolgen.In the region of the annular gap 96, the gas cylinder mixes with the introduced soot-laden exhaust gases 92. The gas cylinder takes these soot-laden exhaust gases 92 in the interior 50 with. Due to the strong rotation generated in the interior, the soot particles present in the exhaust gases 92 are deposited on the inside of the pot 12 and there in particular on the inside of the pot outer wall 20. The gas cylinder 100 generates a very strong heating of the exhaust gases 92 present in it, so that at temperatures of about 600 ° C (degrees Celsius), the soot particles can burn. This combustion is made possible by the relatively long residence time of the exhaust gases inside the container 18 and there in the interior of the pot 12. Namely, the exhaust gases 92 do not flow through the device 10 along the shortest path between the exhaust pipe 90 and the pipe 40, but remain in the apparatus 10 for a very long time due to the generation of the gas cylinder 100. Comparative measurements have shown that instead of the prior art comparable residence time of 0.3 seconds, the exhaust gases 92 are the fivefold time in the device 10. Together with the very high temperatures generated in the gas cylinder 100, oxidation of carbon black into carbon dioxide can be effected by means of oxygen.
Die erforderlichen hohen Temperaturen von etwa 600° C sind bei einem Kaltstart eines dieselbetriebenen Nutzfahrzeuges, wie beispielsweise eines entsprechen angetriebenen Lastkraftwagens bei weitem nicht vorhanden. Bei einem Kaltstart werden sich anfänglich die Rußpartikel unmittelbar an der Innenseite des Topfes 12 anlegen. Die Gaswalze entsteht nämlich unmittelbar mit der Rotation der Gliederketten 74, 76. Die Innenwand des Topfes 12 muss also so ausgelegt werden, dass ausreichend Platz zur Ablagerung der Rußpartikel während des Betriebszeitraumes ist, in dem die zur Oxydation des Rußes erforderliche Temperatur im Inneren des Topfes 12 noch nicht vorhanden ist.The required high temperatures of about 600 ° C are at a cold start of a diesel-powered commercial vehicle, such as a correspondingly powered truck by far not available. During a cold start, the soot particles will initially build up directly on the inside of the pot 12. The gas cylinder is formed directly with the rotation of the link chains 74, 76. The inner wall of the pot 12 must therefore be designed so that there is sufficient space for the deposition of soot particles during the operating period, in which the temperature required for the oxidation of the carbon black inside the pot 12 does not exist yet.
Durch die Rotation werden sich im Außenbereich der Gaswalze 100, das heißt im Bereich der Topfwandung 20, höhere Temperaturen einstellen als im inneren Bereich der Gaswalze, das heißt an der Außenwand der Hülse 28. Daher könnten im Innenraum 50 und dort beispielsweise im Bereich der Außenseite der Hülse 28 und insbesondere im Bereich des Überganges von Innenraum 50 des Topfes 12 in den Innenraum 104 der Hülse 28 hinein, das heißt im Bereich der Strömungspfeile 102, Partikelfilter zusätzlich eingebaut werden. Solche Partikelfilter, die in der Zeichnung beispielhaft mit dem Bezugszeichen 106 dargestellt sind, können aus keramischen oder Sintermetall- Werkstoffen (poröse Sinterbleche) hergestellt sein. Mit solchen Partikelfiltern kann mit einem der Vorrichtung 10 vorgeschalteten Oxydationskatalysator das dort gebildete NO2 zur ergänzenden Oxydierung der Rußpartikel in der Vorrichtung 10 verwendet werden.As a result of the rotation, higher temperatures are set in the outer region of the gas cylinder 100, that is to say in the region of the pot wall 20, than in the inner region of the gas cylinder, that is to say on the outer wall of the sleeve 28. Therefore, in the interior 50 and there, for example, in the region of the outside the sleeve 28 and in particular in the region of the transition from the inner space 50 of the pot 12 into the inner space 104 of the sleeve 28, that is to say in the area of the flow arrows 102, particulate filters are additionally installed. Such particulate filters, which are illustrated by the reference numeral 106 in the drawing by way of example, can be made of ceramic or sintered metal materials (porous sintered sheets). With such particle filters can be connected upstream of one of the device 10 Oxydationskatalysator NO2 formed there to supplement the oxidation of soot particles in the device 10 are used.
Da Dieselkraftstoffe regelmäßig anorganische Bestandteile enthalten, die in der Vorrichtung 10 nicht verbrannt werden können, fällt Asche an, die aus der Vorrichtung 10 entfernt werden sollte. Die Asche kann beispielsweise kontinuierlich durch eine separate Öffnung hindurch aus dem Topf 12 und dem Außenbehälter 18 in einen Auffangbehälter ausgetragen werden. Diese Öffnung kann mit einer in der Topfwand 20 innen umlaufend angeordneten Ringnut verbunden sein. Dem Auffangbehälter kann ein Schwerkraft-Zyklon strömungsmäßig vorgeschaltet sein, so dass die anteilig schwereren Ascheteilchen in den Auffangbehälter hineinfallen, während die leichteren Rußbestandteile wieder in den Topf 12 - zum Beispiel über die Abgasleitung 90 - zurückgeführt werden können.Since diesel fuels regularly contain inorganic constituents that can not be burned in the device 10, ash accumulates, which should be removed from the device 10. The ash, for example, can be discharged continuously through a separate opening from the pot 12 and the outer container 18 into a collecting container. This opening can be connected to an in the pot wall 20 inside circumferentially arranged annular groove. The collecting container may be upstream of a gravity cyclone, so that the proportionally heavier ash particles fall into the receptacle, while the lighter soot components back into the pot 12 - for example, via the exhaust pipe 90 - can be returned.
Durch das Rohrstück 84, das durch einen in der Zeichnung nicht dargestellten Verschluss beliebig verschlossen oder geöffnet werden kann, können bei entsprechend geöffnetem Verschluss Gase aus dem Innenraum 104 der Hülse 28 nach in der Zeichnung unten in den Zwischenraum 16 (Pfeil 110) eingeleitet werden. Eine solche Rückführung von Gasen bietet sich beispielsweise an, um bei noch nicht vorhandenem ausreichend aufgeheizten Innenraum 50, 104 Feuchtigkeit aus dem Inneren des Topfes 12 herauszuführen, die bei einer Taupunktunter- schreitung auftritt. Diese Feuchtigkeit kann dann wieder rückwärts durch die Rotation der Gliederketten 74, 76 durch den Zwischenraum 16 hindurch wieder nach oben in den Innenraum 50 eingeleitet und dort erwärmt werden.Through the pipe section 84, which can be optionally closed or opened by a closure, not shown in the drawing, gases can be introduced from the interior 104 of the sleeve 28 according to in the drawing below in the gap 16 (arrow 110) with a correspondingly open closure. Such recirculation of gases is useful, for example, in order to lead moisture out of the interior of the pot 12 when the interior space 50, 104 is not sufficiently heated, which occurs when the dew point is undershot. This moisture can then back again by the rotation of the link chains 74, 76 through the gap 16 therethrough back into the interior 50 is initiated and heated there.
Es hat sich ferner gezeigt, dass sich die Auspuffgeräusche der aus der Vorrichtung 10 austretenden gereinigten Abgase 94 akustisch vergleichsweise angenehmer anhören; offensichtlich sind die im Stand der Technik bekannten akustisch unangenehmen Stoßwellen stark eliminiert worden. Daher können die gereinigten Abgase 94 am Fahrzeug nach oben ins Freie geleitet werden.It has also been found that the exhaust noises emitted by the device 10 purified exhaust gases 94 sound acoustically comparatively pleasant; Obviously, the acoustically unpleasant shock waves known in the art have been greatly eliminated. Therefore, the purified exhaust gases 94 can be directed upwards to the vehicle.
Auf die Betriebsweise der erfindungsgemäßen Vorrichtung wird durch Veränderung der Drehzahl der Gliederketten 74, 76 und damit durch Veränderung der Umdrehungsgeschwindigkeit dieser Glieder Einfluss genommen. Auf die im Stand der Technik bekannten Regelungsklappen kann daher verzichtet werden. Die Betriebsweise der erfindungsgemäßen Vorrichtung hängt ab von der Umlaufgeschwindigkeit der Abgase im Topf 12, dem O2~Gehalt und der Temperatur der Abgase. Die jeweils vorhandenen O2- und Temperatur- Werte können über Messfühler ermittelt werden.On the operation of the device according to the invention is influenced by changing the speed of the link chains 74, 76 and thus by changing the rotational speed of these members. On the known in the art control valves can therefore be omitted. The operation of the device according to the invention depends on the speed of circulation of the exhaust gases in the pot 12, the O 2 content and the temperature of the exhaust gases. The available O2 and temperature values can be determined via sensors.
Aufgrund der aktiven Wirbelstromerzeugung arbeitet die erfindungsgemäße Vorrichtung im Unterdruckbereich von etwa 5 bis 10 Millibar. Due to the active generation of eddy current, the device according to the invention operates in the vacuum range of about 5 to 10 millibars.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112006000928T DE112006000928A5 (en) | 2005-04-15 | 2006-04-13 | Device for removing soot particles from exhaust gases |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200520006137 DE202005006137U1 (en) | 2005-04-15 | 2005-04-15 | Device for removing soot particles from exhaust gases |
| DE202005006137.9 | 2005-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006108411A1 true WO2006108411A1 (en) | 2006-10-19 |
Family
ID=34833393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2006/000669 Ceased WO2006108411A1 (en) | 2005-04-15 | 2006-04-13 | Device for removing soot particulates from exhaust gases |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE202005006137U1 (en) |
| WO (1) | WO2006108411A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008002857A1 (en) | 2008-05-19 | 2009-11-26 | Flammger, Zudse & Co. Gmbh | Particle separator, particularly for internal combustion engine, has separating base A with opening, which is provided in cylindrical separator housing after exhaust gas supply opening |
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| DE849350C (en) * | 1948-12-09 | 1952-09-15 | Bruno Dr-Ing Eck | Dust extractor for dust-gas mixtures |
| DE1268108B (en) * | 1962-02-17 | 1968-05-16 | Siegfried Handte Dipl Ing | Device for wet cleaning of dusty gases |
| DE3122026A1 (en) * | 1981-06-03 | 1983-01-05 | Paul 7107 Bad Friedrichshall Christian | Apparatus for separating off liquids and solids from gases |
| DE3816727C1 (en) * | 1988-05-17 | 1989-08-03 | Paul 7107 Bad Friedrichshall De Christian | Apparatus for separating off solids from a gas stream, in particular for the purification of flue gas and exhaust gas streams |
| US5494501A (en) * | 1994-02-22 | 1996-02-27 | The Anspach Effort, Inc. | Lubricant separator for a pneumatic tool lubrication system |
| US20020139249A1 (en) * | 2001-03-28 | 2002-10-03 | Darren Livingston | Acceleration assisted particle/gas separation system |
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| EP1435436A1 (en) * | 2003-01-03 | 2004-07-07 | General Motors Corporation | Open end diesel particulate trap |
| DE202004011112U1 (en) * | 2004-07-13 | 2004-10-28 | Leithner, Hans Joachim | Device for separating of foreign substances from gas stream when operating tool machine has at least one element consisting of reciprocally moving members provided in gas stream created by fan impeller |
-
2005
- 2005-04-15 DE DE200520006137 patent/DE202005006137U1/en not_active Expired - Lifetime
-
2006
- 2006-04-13 WO PCT/DE2006/000669 patent/WO2006108411A1/en not_active Ceased
- 2006-04-13 DE DE112006000928T patent/DE112006000928A5/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE849350C (en) * | 1948-12-09 | 1952-09-15 | Bruno Dr-Ing Eck | Dust extractor for dust-gas mixtures |
| DE831177C (en) * | 1950-04-05 | 1952-02-11 | Heinrich Lanz Ag | Sound absorbing exhaust gas cleaner, especially for internal combustion engines |
| DE1268108B (en) * | 1962-02-17 | 1968-05-16 | Siegfried Handte Dipl Ing | Device for wet cleaning of dusty gases |
| DE3122026A1 (en) * | 1981-06-03 | 1983-01-05 | Paul 7107 Bad Friedrichshall Christian | Apparatus for separating off liquids and solids from gases |
| DE3816727C1 (en) * | 1988-05-17 | 1989-08-03 | Paul 7107 Bad Friedrichshall De Christian | Apparatus for separating off solids from a gas stream, in particular for the purification of flue gas and exhaust gas streams |
| US5494501A (en) * | 1994-02-22 | 1996-02-27 | The Anspach Effort, Inc. | Lubricant separator for a pneumatic tool lubrication system |
| US20020139249A1 (en) * | 2001-03-28 | 2002-10-03 | Darren Livingston | Acceleration assisted particle/gas separation system |
| DE10228682A1 (en) * | 2002-06-27 | 2004-01-22 | Mann + Hummel Gmbh | Centrifuge, in particular for separating soot from an exhaust gas stream of an internal combustion engine |
| EP1435436A1 (en) * | 2003-01-03 | 2004-07-07 | General Motors Corporation | Open end diesel particulate trap |
| DE202004011112U1 (en) * | 2004-07-13 | 2004-10-28 | Leithner, Hans Joachim | Device for separating of foreign substances from gas stream when operating tool machine has at least one element consisting of reciprocally moving members provided in gas stream created by fan impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202005006137U1 (en) | 2005-08-04 |
| DE112006000928A5 (en) | 2008-01-10 |
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