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EP3504433B1 - Ensemble motopompe - Google Patents

Ensemble motopompe Download PDF

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Publication number
EP3504433B1
EP3504433B1 EP17761804.8A EP17761804A EP3504433B1 EP 3504433 B1 EP3504433 B1 EP 3504433B1 EP 17761804 A EP17761804 A EP 17761804A EP 3504433 B1 EP3504433 B1 EP 3504433B1
Authority
EP
European Patent Office
Prior art keywords
pump
motor
pump device
housing
electric motor
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.)
Active
Application number
EP17761804.8A
Other languages
German (de)
English (en)
Other versions
EP3504433B2 (fr
EP3504433A1 (fr
Inventor
Andreas Böhler
Christian Repplinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydac Fluidtechnik GmbH
Original Assignee
Hydac Fluidtechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP3504433B1 publication Critical patent/EP3504433B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/103—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being a radial piston pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/007—General arrangements of parts; Frames and supporting elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
    • F04B23/026—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir a pump-side forming a wall of the reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction

Definitions

  • the invention relates to a motor pump device.
  • Such devices are also referred to in technical terms as motor-pump units and are primarily used to supply hydraulic circuits with hydraulic oil of predeterminable pressure.
  • the units mentioned are regularly characterized by a high power density with small dimensions and can be provided as a functional unit for the pressurized oil supply to oil-hydraulic systems.
  • Such a hydraulic compact unit is an example in the DE 196 52 706 A1 It is shown that the tank unit has an annular cylindrical pressure medium container, which has an outer outer wall and an inner outer wall as well as two end flanges, with a closed electric motor surrounded by the pressure medium container and cooled by a cooling air flow, and with a hydraulic pump that can be driven by the electric motor as a supply pump for the respective hydraulic Circulation.
  • the aim here is that such a unit has a very compact structure with sufficient cooling of the electric motor for continuous operation, in particular in the form of an attachment.
  • the pressure medium container keeps the electric motor tight surrounds and the inner outer wall of the pressure medium container provided with cooling fins serves as a guide for the cooling air flow passing over the electric motor. In this way, all of the air flowing between the electric motor and the pressure medium container is used to the full for cooling the electric motor and also sweeps closely along the housing of the winding heads of the electric motor, which are removed from a fan wheel.
  • the DE 299 06 881 U1 discloses a motor-pump device, designed as a modular system, consisting of an electric motor, a radial piston pump that can be driven by the electric motor and a gear pump, a tank unit and add-on parts, with several used supply pumps conveying to a common supply connection for the implementation of a hydraulic single or multi-circuit system.
  • the pump unit shown there has two bearings for the drive shaft and rotor.
  • the EP 2 241 753 A1 and the EP 2 025 934 A1 disclose further motor pump devices.
  • the object of the invention is to further improve the above-mentioned units in such a way that, despite their compact design and high specific power, they are thermally advantageous in such a way that they can be used in uninterrupted periodic operation (S6) can be used for continuous operation (S1).
  • a motor pump device which is designed as a modular system, achieves an object in this regard according to the feature configuration of patent claim 1.
  • a motor-pump device can be constructed in practice for obtaining a large number of pressure combinations.
  • the mentioned use of different supply pumps, pump sizes, motors, installation positions, tank lengths etc. results in a very large variety of variants, which depending on the application at hand can be designed for the unit from a thermal point of view such that uninterrupted periodic operation (S6) up to for continuous operation (S1) is possible.
  • the exact duty cycle is to be selected depending on the power output of the unit as well as the operating and environmental conditions. that a maximum permissible operating temperature, for example in the form of the oil temperature in the unit, of preferably 80 ° C. is not exceeded.
  • a temperature switch can preferably be used in or outside the unit.
  • the special features of the motor-pump device are based on the flexible modular system according to the invention in accordance with the features of claim 1, which among other things enables the combination of high and / or low pressure with only one unit. In this way, the implementation of so-called one to two-circuit supply systems is also possible.
  • the unit according to the invention can be used both horizontally and vertically and the tank unit in the form of the oil container can be flexibly adjusted to the oil volume required in each case.
  • the housing of its tank unit is designed as an extruded profile and is provided with cooling fins along its outer circumference facing the surroundings.
  • the desired increased operating mode can be realized in this way.
  • additional cooling measures can be avoided, such as attaching a fan, the fan wheel of which is to be driven by the electric motor next to the respective supply pump via a drive shaft, which leads to corresponding losses in the operation of the known aggregates leads.
  • an additional oil cooler can be dispensed with in certain applications.
  • the in Fig. 1 as a whole from the outside motor pump device, as shown, horizontally and vertically according to the longitudinal sectional view of the Fig. 2 deploy.
  • the in the Fig. 2 Motor pump device shown is designed as a modular system and has an electric motor designated as a whole with 10.
  • the electric motor 10 can consist of a conventional asynchronous machine with an external stator 12 and an internal rotor 14 (see Fig. 2 ).
  • the rotor 14 is connected in a conventional manner to a drive shaft 16 of the electric motor 10, which is rotatably supported at the end in bearing points 18.
  • Another third bearing 20 is present between the end bearings 18 and is accommodated in the multi-part motor housing 22 of the electric motor 10 on an inner wall.
  • the electric motor 10 can be equipped with or without a fan wheel; here in Fig. 1 and 2nd shown with fan wheel.
  • a radial piston pump 24 is installed below the motor housing 22 with a total of three pump elements 26 as shown in FIG Fig. 3 .
  • three pistons or pump elements 26 instead of three pistons or pump elements 26, six pistons or pump elements can also be used for the radial piston pump.
  • the three or six valve spring-controlled radial piston pump elements 26 mentioned are actuated independently of the direction of rotation by an eccentric drive 28 which is driven by the external electric motor 10, specifically via its drive shaft 16.
  • Fig. 3 Pump elements 26 shown in a pump housing in the manner of an annular flange 30 received.
  • This ring flange 30 is, as is particularly the case Fig. 2 shows, between the electric motor 10 and a tank unit designated as a whole by 32 of the motor pump device.
  • the inside of the tank unit 32 is used for Inclusion of a predeterminable amount of oil fluid.
  • a gear pump 34 is integrated within the tank unit 32, the technical structure of which is customary and is therefore no longer shown in detail.
  • the gear pump 34 removes, looking in the direction of Fig. 2 seen, on its underside via an extraction nozzle 36 with filter element 45 fluid from the tank unit 32 for further delivery from the unit into a one or two-circuit system of an overall hydraulic system (not shown).
  • the radial piston pump 24 also has a suction line 38 with a filter element 39 for the purpose of filtering the oil removed from the tank 32 by means of the radial piston pump 24, which oil is also released from the hydraulic unit to a hydraulic consumer, as described at the beginning.
  • the output shaft 42 of the gear pump 34 which in the Fig. 2 is only shown in principle and schematically, is driven by the drive shaft 16 of the electric motor 10 via a so-called Oldham coupling 44.
  • the nozzle-like fluid extraction parts including the suction lines 36 and 38, are designed in such a way that fluid extraction from the tank 32 is possible both in a horizontal installation position of the unit as shown in FIG Fig. 1 can take place as well as a vertical elevation of the unit as shown in the Fig. 2 is possible.
  • the ventilation filter 40 can be removed ( Fig. 1 , 3rd ).
  • the motor pump device can be equipped with radial piston pumps 24 and / or with gear pumps 34 in such a way that a pressure supply for hydraulic single and dual circuit systems is possible, and only in low pressure (LP) or only in high pressure (HD) or combined accordingly according to low pressure (LP) and high pressure (HD).
  • LP low pressure
  • HD high pressure
  • the respective radial piston pump 24 of the high pressure supply and the gear pump 34 used in each case Low pressure supply of a hydraulic circuit should serve.
  • this can be of two or four poles, and that is in the Fig. 1
  • the unit shown is only intended for pure low pressure applications in continuous operation Fig. 1
  • Damping ring 46 shown from the outside between the ring flange 30 and the housing 22 of the electric motor 10 can also be omitted or replaced due to another pump control.
  • a single-circuit system can be supplied with high pressure (HD), low pressure (ND), high and low pressure (HN) and with low pressure / low pressure (NN).
  • the supply is made with low pressure / low pressure (NN), high pressure / high pressure (HH) or with high / low pressure (HN).
  • HH high pressure / high pressure
  • HN high / low pressure
  • only one radial piston pump 24 can be used as the high pressure pump or only one gear pump 34 as the low pressure pump; otherwise all other components remain, as exemplified in the Fig. 2 shown, received.
  • N; NN; NN Only with pure low-pressure variants (N; NN; NN) can a different motor-pump connection be used depending on the application.
  • the above-mentioned high pressure pump can supply 700 bar supply pressure at flow rates of around 3 l / minute.
  • the low-pressure pump has a higher delivery rate up to, for example, 8.6 l / min at 250 bar or, for example, 20 l / minute at 110 bar supply pressure. If two low pressure supply pumps are combined with one another, one of the pumps can be switched to unpressurized circulation to save energy as required in single circuit operation.
  • the pumps can be operated alternately or in parallel in the dual-circuit system (NN; HN; HH). The relevant values are only examples and can be adapted accordingly depending on the application.
  • an electrical connection box 50 is provided on the outer circumference of the motor housing 22.
  • At least one longitudinal linkage, designated as a whole with 48 and valves, is attached to the pump flange 30.
  • a fill level indicator of the container contents can be integrated on the tank base 62 for the horizontal construction and on the tank housing 52 for the vertical construction.
  • the tank unit 32 is now shown in more detail. So it shows Fig. 4 the tank unit 32 in the manner of an exploded view with a housing 52 which is designed as an extruded profile, preferably made of aluminum. Along its outer circumference, the housing 52 has axially continuous cooling fins 54 which are an integral part of the extruded profile.
  • the cooling fins 54 mentioned are interrupted by two flat profiles 56 and a flange plate 58 on the underside of the housing 52 in the circumferential direction.
  • the two flat profiles 56 can be used to carry an unspecified machine plate from the manufacturer and, as a further attachment, a level meter or sensor (not shown).
  • the flange plate 58 is used for the horizontal elevation of the unit presented, as exemplified in FIG Fig. 1 is shown.
  • the flange plate 58 mentioned is an integral part of the cylindrical housing body 52 of the tank unit 32 and is in the form of a hollow profile, as shown in particular in the diagrams of FIGS 5 and 6 result, designed.
  • Two cooling channels 60 run along the tank unit 32 between the flange plate 58 and the cylindrical jacket of the housing 52.
  • connection component (tank foot) 62 the stand of the unit as shown in the Fig. 2 can serve or the flange 62 has an attachment in the form of a fill level sensor 66 on the bottom, which then results in a horizontal installation position of the unit, as in Fig. 1 shown, pretends.
  • left connection component (tank adapter) 64 carries at its upper right end the filler neck 40 for the tank unit 32 and closes in succession, as in the Fig. 1 shown, to the annular flange 30 with the radial piston pump 24.
  • the two flanges 62, 64 have connection points 68, with which a cooling circuit (not shown in more detail) can be implemented, in which, according to the arrow representations, the coolant enters at the connection point 68 of the tank base 62, is then passed on to the two cooling channels 60 and collected by the tank adapter 64, the correspondingly heated cooling liquid leaves the tank unit 32 via the connection point 68. Effective cooling of the tank contents is possible in this way. While the cooling fins 54 shown serve primarily for air and convection cooling of the tank contents, the cooling channels 60 enable integrated liquid cooling for the tank contents of the tank unit 32.
  • the cooling medium When using the unit in machine tools, the cooling medium would be useful to use their cooling lubricant, since one Coolant supply as a unit is often already integrated in the machine tool. However, other cooling media such as water, glycol, etc. are also used.
  • the cooling medium along the tank profile absorbs the heat of the oil tank and thus also the hydraulic oil that is stored in the tank unit 32 due to the temperature difference.
  • the coolant inlet is located at the tank foot 62 and the outlet at the tank adapter 64.
  • this cooling process results in a saturation of the oil temperature below the permitted max. Temperature reached. Accordingly, electric motors with an appropriate operating mode are used for the periodic uninterrupted operation up to continuous operation.
  • the two thermal Problem areas oil temperature and engine temperature of the hydraulic unit for the two operating modes mentioned solved.
  • the hydraulic fluid is cooled very well and higher operating modes and operating times can be achieved with the unit during operation.
  • These cooling processes are both horizontal ( Fig. 1 ) as well as in vertical ( Fig. 2 ) Alignment of the unit can be used.
  • the through holes 70 on the tank base 62 can also be provided with screw connections (not shown in more detail).
  • Fig. 7 a low-pressure single-circuit system
  • the gear pump 34 designed as a low-pressure pump feeding into a single supply connection P of the hydraulic single-circuit system, not shown in any more detail.
  • the fluid coming from the low-pressure system is returned via the tank connection T to the tank unit 32 for a further removal.
  • the removal takes place via the removal nozzle 36 and the low-pressure filter element 45 connected to it, so that the fluid then reaches the suction side of the gear pump 34.
  • the connections P, T serve as an interface for the continuation of the fluid to a chaining system of a hydraulic circuit, not shown in detail, which is designed here as a single-circuit system.
  • the gear pump 34 also delivers the fluid on its pressure side to the supply connection P of the single-circuit system.
  • a radial piston pump 24 is used for a high-pressure supply to the single-circuit system, so that the gear pumps 34 intended for the low-pressure range are not provided within the unit.
  • the radial piston pump 24 according to the Fig. 10 conveys pressurized fluid into the pressure supply connection P with only one supply line 72.
  • the one supply connection P1 is supplied via a supply line 72 of the high-pressure radial piston pump 24, whereas the low-pressure gear pump 34 supplies the further pressure supply connection P2 with pressure that can be predetermined by pressure fluid.
  • This is via the pressure supply connections P1, P2 implemented a two-circuit system, one with high pressure (P1), one with low pressure (P2).
  • each supply connection P1, P2 being assigned its own supply line 72, which is supplied by the radial piston pump 24.
  • a number of pistons, for example three pistons or pump elements 26 can be assigned to the circuit with the supply connection P1, and the remaining pistons or pump elements 26 then supply the second circuit via the further one Supply connection P2.
  • the unit appears through a clear adjustment of transitions of the components mentioned in a clearly structured form as a high quality product with a clear visual order, which helps assembly and repair work easier.
  • a very flexible modular system with a uniform structure is available.
  • it can be more cost-effective to create an assembly with a radial piston pump 24 and a gear pump 34 and, depending on requirements, only ever one of the two pumps 24, 34 or both pumps 24, 34 in operation take to design each as a separate high or low pressure unit, which then only has a specially adapted supply pump.

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  • Engineering & Computer Science (AREA)
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  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (13)

  1. Groupe motopompe, conçu en système modulaire, constitué d'au moins
    - un moteur (10) électrique, un rotor (14) du moteur (10) électrique étant relié à un arbre (16) d'entraînement de celui-ci, qui est monté tournant du côté de l'extrémité dans des points (18) d'appui, et dans lequel, entre les points (18) d'appui du côté de l'extrémité, il y a encore un autre troisième point (20) d'appui, qui, dans un carter (22) de moteur en plusieurs parties du moteur (10) électrique, est reçu sur une paroi intérieure,
    - une pompe (24) à pistons radiaux, chacune pouvant être entraînée par le moteur (10) électrique et servant, de préférence, d'alimentation sous haute pression et/ou une pompe (34) à engrenage, qui sert, de préférence, d'alimentation sous basse pression,
    - une unité (32) de réservoir, et
    - des pièces rapportées, comme des soupapes (48) en enchaînement longitudinal, et des mesureurs (66) de niveau, dans lequel, pour une réalisation d'un système hydraulique à un circuit ou à plusieurs circuits,
    - chaque pompe (24, 34) d'alimentation mise en oeuvre a un raccord (P1, P2) d'alimentation propre pour le circuit respectif du système mis en oeuvre, ou
    - plusieurs pompes (24, 34) d'alimentation utilisées refoulent dans un raccord (P) d'alimentation commun, ou
    - une pompe (24) d'alimentation unique, qui sert, de préférence, au refoulement sous haute pression, a plusieurs branches (72) d'alimentation, qui sont raccordées chacune à un raccord (P1, P2) d'alimentation.
  2. Groupe motopompe suivant la revendication 1, caractérisé en ce que la pompe (24) à pistons radiaux respective est reçue entre le moteur (10) électrique et l'unité (32) de réservoir.
  3. Groupe motopompe suivant la revendication 1 ou 2, caractérisé en ce que la pompe (34) à engrenage respective est reçue dans l'unité (32) de réservoir.
  4. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce que le moteur (10) électrique entraîne, par l'arbre (16) d'entraînement commun, à la fois la pompe (24) à pistons radiaux et la pompe (34) à engrenage.
  5. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce que le moteur (10) électrique a, se trouvant à l'extérieur, le carter (22) du moteur, qui se raccorde à l'atmosphère ambiante et auquel se raccorde l'enveloppe (30) de la pompe (24, 34) d'alimentation, à laquelle se raccorde à nouveau une enveloppe (52) de l'unité (32) de réservoir.
  6. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce que le moteur (10) électrique, la pompe (24, 34) d'alimentation et l'unité (32) de réservoir sont les constituants essentiels du système modulaire.
  7. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce que le moteur (10) électrique est une machine asynchrone ayant un stator (12) se trouvant à l'extérieur et le rotor (14) à l'intérieur.
  8. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce qu'un enchaînement longitudinal de soupapes est fixé à la bride (30) de pompe.
  9. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce que les pistons (26) de la pompe (24) à pistons radiaux peuvent être entraînés par un entraînement (28) à excentrique de l'arbre (16) d'entraînement du moteur (10) électrique et/ou en ce que l'arbre (42) de sortie de la pompe (34) à engrenage est relié par un accouplement (44) Oldham à l'arbre (16) d'entraînement du moteur (10) électrique.
  10. Groupe motopompe suivant l'une des revendications précédentes, caractérisé en ce que l'enveloppe (52) de l'unité (32) de réservoir, constituée sous la forme d'un profilé filé à la presse, est pourvue d'ailettes (54) de refroidissement le long de son pourtour extérieur tourné vers l'atmosphère ambiante.
  11. Groupe motopompe suivant la revendication 10, caractérisé en ce que l'enveloppe (52) de l'unité (32) de réservoir est constituée sous la forme d'une pièce cylindrique et en ce que, le long de son pourtour extérieur, est disposé un flasque (58), qui se transforme d'une seule pièce en la pièce cylindrique et en ce que ce flasque (58) permet le montage du groupe motopompe dans une position de montage horizontale et un pied (62) de réservoir permet la position de montage verticale.
  12. Groupe motopompe suivant la revendication 11, caractérisé en ce que, intégré dans la surface latérale de l'enveloppe (52) de l'unité (32) de réservoir, il y a au moins un canal (60) de refroidissement, de préférence au point de transition entre le flasque (58) et la surface latérale cylindrique de l'enveloppe (52).
  13. Groupe motopompe suivant la revendication 11 ou 12, caractérisé en ce que l'enveloppe (52) de l'unité (32) de réservoir a, sur ses extrémités du côté frontal, d'une part le pied (62) du réservoir pour dresser le groupe motopompe dans une direction verticale, et d'autre part un autre adaptateur (64) de réservoir pour le raccordement de la bride (30) annulaire à la pompe (24) à pistons radiaux respective.
EP17761804.8A 2016-08-29 2017-08-29 Ensemble motopompe Active EP3504433B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016010669.7A DE102016010669A1 (de) 2016-08-29 2016-08-29 Motor-Pumpenvorrichtung
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DE102018001725A1 (de) * 2018-03-05 2019-09-05 Hydac Fluidtechnik Gmbh Anschlussvorrichtung
DE102018111059A1 (de) * 2018-05-08 2019-11-14 Speck-Kolbenpumpenfabrik Otto Speck Gmbh & Co Kg Antrieb für eine kolbenpumpe oder einen -kompressor
FR3091561B1 (fr) * 2019-01-03 2021-05-28 Automatisation Et Controle Du Serrage Microcentrale hydraulique
DE102019200703A1 (de) * 2019-01-21 2020-07-23 Hawe Hydraulik Se Sensoreinheit, Fluidaggregat mit Sensoreinheit und Verfahren zur Messung von Parametern eines Fluids
DE102019206326A1 (de) * 2019-05-03 2020-11-05 Hawe Hydraulik Se Pumpengehäuse mit Kühlmittelkanal und Pumpenaggregat
DE102019212074A1 (de) * 2019-08-13 2021-02-18 Robert Bosch Gmbh Motor-Hydromaschinen-Einheit zum Anbau an ein Hydraulikaggregat
CN112032015A (zh) * 2020-09-03 2020-12-04 王萍 一种逐步驱动式高效水泵
CN115681067B (zh) * 2022-09-30 2025-09-19 北京精密机电控制设备研究所 一种集驱动控制功能同轴一体化伺服电机泵
CN120351138B (zh) * 2025-06-25 2025-09-12 浙江大学 伺服电机泵紧凑容腔搅油流动特性的拟实测试装置及其综合测试平台

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CH596697A5 (en) 1975-05-26 1978-03-15 Theodor Meier Pump set with air-cooled flanged electric motor
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WO2018041401A1 (fr) 2018-03-08
EP3504433A1 (fr) 2019-07-03

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