WO2010043202A2 - Vakuumpumpe - Google Patents
Vakuumpumpe Download PDFInfo
- Publication number
- WO2010043202A2 WO2010043202A2 PCT/DE2009/001406 DE2009001406W WO2010043202A2 WO 2010043202 A2 WO2010043202 A2 WO 2010043202A2 DE 2009001406 W DE2009001406 W DE 2009001406W WO 2010043202 A2 WO2010043202 A2 WO 2010043202A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing part
- vacuum pump
- lubricant
- pump according
- sealing device
- Prior art date
Links
Classifications
-
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- 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
- F01C19/00—Sealing arrangements in rotary-piston machines or engines
- F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
-
- 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
- F04C2240/30—Casings or housings
Definitions
- the invention relates to a vacuum pump with a pump housing that can be mounted or attached to a motor vehicle housing part that is connectable or connected to a lubricant source, and with a rotor, which is mounted rotatably about a rotation axis in a pump housing part, which encloses a lubricant feed-through channel.
- a Schmierstoffzu 1500kanal which is provided in the motor vehicle housing part and merges at an interface between the motor vehicle housing part and the pump housing part in the lubricant passage channel.
- the object of the invention is a vacuum pump with a pump housing which can be attached to a motor vehicle housing part or connected, which is connectable or connected to a lubricant source, and with a rotor which is rotatably mounted about a rotation axis in a pump housing part, which comprises a lubricant passage channel which, in the attached state of the vacuum pump, extends from the rotor through the pump housing part to a lubricant supply passage provided in the motor vehicle body part and passing into the lubricant passage passage at an interface between the motor vehicle body part and the pump housing part, having a long life and a high Efficiency has.
- the object is in a vacuum pump with a pump housing, which is attachable or grown on a motor vehicle housing part, which is connectable or connected to a lubricant source, and with a rotor which is rotatably mounted about a rotation axis in a pump housing part, which includes a lubricant passage channel, the in the mounted state extends from the rotor through the pump housing part to a Schmierstoffzu GmbHkanal provided in the motor vehicle housing part and merges at an interface between the motor vehicle housing part and the pump housing part in the lubricant passage channel, achieved in that at the interface in the radial direction between the motor vehicle housing part and the pump housing part a sealing device can be arranged or arranged.
- the vacuum pump is preferably designed as a vane pump and serves to suck in a gaseous medium, in particular air, in order to generate a vacuum.
- the vacuum pump lubricant preferably oil supplied.
- the lubricant supply channel opens into the lubricant passage channel or merges into it.
- the interface is preferably designed as a clearance and afflicted with leakage.
- the motor vehicle housing part is preferably a motor housing part of an internal combustion engine, for example a cylinder head or the motor housing part in which the camshaft is mounted.
- the motor vehicle housing part may be a housing part of an electric motor or a transmission.
- the lubricant source is, for example, a lubricating oil circuit of the internal combustion engine.
- the term radial preferably refers to a central axis of the pump housing part.
- a vacuum pump with a pump housing which can be attached to a motor vehicle housing part, which is connectable or connected to a lubricant source, and with a rotor which is rotatably mounted about a rotation axis in a pump housing part, which comprises a lubricant passage channel which extends in the attached state of the vacuum pump from the rotor through the pump housing part to a Schmierstoffzu slaughterment provided in the motor vehicle housing part and merges at an interface between the motor vehicle housing part and the pump housing part in the lubricant passage channel, alternatively or additionally solved in that at the interface between the motor vehicle housing part and the pump housing part, a sealing device is arranged with a sealing lip, which is in the attached state of the vacuum pump sealingly on one of the housing parts can be applied relationship is sealingly applied to one of the housing parts.
- the sealing device is preferably integrated into the vacuum pump or combined in an installation unit with the vacuum pump.
- the sealing lip comes in or after the attachment of the vacuum pump to the motor vehicle housing part, optionally pressure-dependent, in sealing engagement with the motor vehicle housing part.
- the sealing lip is preferably integrally connected to the sealing device.
- a preferred embodiment of the vacuum pump is characterized in that the sealing lip rests in the attached state of the vacuum pump to the associated housing part, as long as in the lubricant passageway and / or the Schmierstoffzu GmbHkanal a depressurized state or overpressure prevails.
- Pressure-free state in this context means that the lubricant source has not yet built up pressure to distribute or promote the lubricant in the lubricant circuit.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing lip is designed and / or elastically deformable, that it lifts off from the associated housing part, when the pressure in the lubricant passageway and / or the Schmierffenzu 1500kanal falls below a predetermined value.
- the sealing lip is in the pressureless state optionally with a small biasing force to the associated housing part.
- the sealing device fulfills the function of a ventilation valve.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing lip is spaced apart in the attached state of the vacuum pump from the associated housing part, as long as there is a pressureless state or negative pressure in the lubricant passageway and / or the Schmierstoffzu 1500kanal. This prevents that, for example when the internal combustion engine is switched off, owing to a negative pressure in the vacuum pump, undesirably too much lubricant is sucked into the vacuum pump.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing lip is designed and / or elastically deformable, that it can be applied to the associated housing part, when the pressure in the lubricant passageway and / or the Schmierstoffzu 1500kanal exceeds a predetermined value.
- the sealing lip As soon as the lubricant pressure increases because, for example, the internal combustion engine is switched on, the sealing lip sealingly comes to rest against the associated housing part. In the applied state of the sealing lip undesirable leakage of lubricant at the interface between the pump housing part and the motor vehicle housing part is reliably prevented.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing device is partially disposed in a recess which is provided in at least one of the housing parts.
- the recess is preferably designed as a counterbore, in particular cylinder counterbore, and serves inter alia to securely position the sealing device during operation.
- the recess is provided in the pump housing part.
- the sealing lip is preferably provided on the side facing away from the recess end side of the sealing device and is located on the housing part, on which the recess is not provided, so particularly preferably on the motor vehicle housing part.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing device comprises at least one sealing ring.
- the sealing ring preferably has a substantially rectangular cross section and allows in its interior the passage of lubricant from the Schmierstoffzu Glasskanal in the lubricant feedthrough channel.
- the sealing ring is located at its end faces, at least partially, on the pump housing part and / or the motor vehicle housing part.
- sealing lip is integrally connected to the sealing ring.
- the sealing ring is preferably received in the recess in order to position or fix the sealing device.
- the sealing lip protrudes, at least partially, out of the recess.
- Another preferred embodiment of the vacuum pump is characterized in that the sealing lip with a small biasing force to the associated housing part can be applied or rests against the associated housing part.
- the housing part As an associated housing part, the housing part is referred to, which abuts the sealing lip. Through the clamping force ensures that the sealing lip in the installed state securely rests against the associated housing part.
- a further preferred embodiment of the vacuum pump is characterized in that the region of the sealing device with the sealing lip is conical.
- the region of the sealing device with the sealing lip is designed both radially outwardly and radially inwardly conical.
- the term radial refers to the central axis of the sealing device.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing device is formed from an elastomeric plastic material.
- the sealing device is formed from an elastomeric plastic material.
- a rubber-like plastic material is used, which is oil resistant.
- a further preferred embodiment of the vacuum pump is characterized in that at least one ventilation gap and / or ventilation channel is provided in at least one of the housing parts, which opens in the transition region between the Schmierstoffzu GmbHkanal and the lubricant passage channel.
- the ventilation gap can be realized by play between two mutually facing surfaces of the housing parts.
- the ventilation gap is preferably arranged in the radial direction between the two housing parts, but may also be arranged in the axial direction.
- a further preferred embodiment of the vacuum pump is characterized in that the ventilation channel is designed as a groove.
- the ventilation channel is preferably designed as an axial groove or in a longitudinal section secant.
- a further preferred embodiment of the vacuum pump is characterized in that a filter element is arranged in the sealing device.
- the filter element prevents contaminants present in the lubricant from passing through the sealing device.
- a further preferred embodiment of the vacuum pump is characterized in that a throttle element is arranged in the sealing device. The throttle element is used, for example, to limit a desired amount of lubricant.
- a further preferred embodiment of the vacuum pump is characterized in that the pump housing part has a bearing receptacle for mounting the rotor.
- the bearing receiver for example, has the shape of a circular cylinder jacket and communicates with the lubricant passageway.
- a further preferred embodiment of the vacuum pump is characterized in that the pump housing part has a circular cylinder jacket-shaped centering surface, which is accommodated in a likewise circular cylinder jacket-shaped centering receptacle of the motor vehicle housing part. Between the pump housing part and the motor housing part a clearance fit is preferably provided. By clearance fit results in a leakage gap for the lubricant, which also allows the passage of air to allow the previously described ventilation valve function of the sealing device.
- a further preferred embodiment of the vacuum pump is characterized in that the sealing device is combined with the vacuum pump in a mounting unit.
- the mounting unit can be produced or preassembled by a supplier and can be attached to the pump housing part.
- the recess for partially receiving the sealing device is preferably provided on the pump housing part.
- the sealing lip of the sealing device comes in the mounted state of the vacuum pump and in dependence on the pressure in the lubricant passage channel and / or the Schmierstoffzu Glasskanal on the motor vehicle housing part to the plant.
- Figure 1 is a vacuum pump in longitudinal section
- Figure 2 shows a detail of Figure 1 in cross section with an inventive
- FIG. 1 shows a longitudinal section of a vacuum pump 1 with a pump housing 2.
- a rotor 5 is rotatably received.
- the rotor 5 comprises a wing receiving slot, through which a wing 8 is guided within a circulation contour 10 in the pump housing 2.
- the rotor 5 has a bearing section 12, which essentially has the shape of a straight circular cylinder.
- the rotor 5 for driving torque is drivingly connected by means of a coupling device 13 to a drive shaft (not shown).
- a working space inside the pump housing 2 is divided into a suction chamber and a pressure chamber.
- the suction chamber is in communication with an inlet nozzle 11 of the vacuum pump 1.
- a working medium, in particular air, is sucked into the suction chamber via the inlet connection 11 and ejected via the pressure chamber.
- the vacuum pump 1 which, if it has only one wing 8, also referred to as a mono-vane cell pump, is used to apply a vacuum, that is a vacuum, to a brake booster of a motor vehicle.
- the negative pressure generated by the vacuum pump 1 can also be used for other purposes.
- the bearing section 12 of the rotor 5 is rotatably mounted in a pump housing part 14.
- the pump housing part 14 has substantially the shape of a hollow circular cylindrical portion, which is integrally connected to the pump housing 2.
- the pump housing part 14 has an outer diameter 15 and is centered with the aid of a classic clearance fit in a motor vehicle housing part, for example designed as a motor housing part 16, which has an inner diameter 17. Due to the clearance fit results between the outer diameter 15 of the pump housing part 14 and the inner diameter 17 of the motor housing part 16, a leakage gap 20, which is shown exaggerated for illustrative purposes.
- the leakage gap 20 allows the operation of the vacuum pump 1, the passage of a leakage current.
- a Schmierstoffzu Switzerlandkanal 21 extends in the radial direction through the motor housing part 16 and merges at an interface between the motor housing part 16 and the pump housing part 14 in a Schmierestoff screen constitutionalkanal 22 extending in continuation of the Schmierstoffzu Switzerlandkanals 21 in the radial direction through the pump housing part 14 to the bearing portion 12th of the rotor 5 extends.
- an arrow 24 is indicated that Lubricant, in particular oil, enters the lubricant supply channel 21.
- a further arrow 25 is indicated that the lubricant passes through the lubricant feed passage 22 to the bearing portion 12 of the rotor 5.
- a sealing device 40 is arranged at the interface between the housing parts 14, 16 at the transition point 30 between the channels 21, 22, which are designed as radial bores.
- a throttle device 41 and a filter device 42 are integrated in the sealing device 40.
- the sealing device 40 is partially received in a recess 44, which is designed as a counterbore in the pump housing part 14.
- the sealing device 40 comprises a sealing ring 46 with a substantially rectangular cross-section.
- the sealing ring 46 is formed from an elastomeric plastic material which is oil-resistant.
- From the sealing ring goes from a sealing lip 50 which is integrally connected to the sealing ring 46.
- the sealing lip 50 is designed both radially inwardly and radially outwardly conical.
- the sealing lip 50 is bounded on the inside by an inner cone 51 and on the outside by an outer cone 52.
- the angles of the inner cone 51 and the outer cone 52 are selected so that the sealing lip 50, viewed in cross section, tapers towards its free end.
- the free end of the sealing lip 50 bears against the inner diameter 17 of the motor housing part 16 with a small preloading force.
- the lubricant feed channel 21 opens at the transition point 30 into an interior 54 of the sealing device 40.
- the lubricant feed channel 22 also opens into the interior 54 of the sealing device 40.
- the interior 54 of the sealing device 40 connects the two channels 21, 22 at the transition point 30 ,
- the sealing device 40 verhin- dert an undesirable leakage through the leakage gap 20.
- the sealing device 40 is designed so that after stopping the engine as little lubricant, in particular oil, is sucked into the evacuated pump interior. In this case, the sealing device 40 is designed so that the assembly of the built-in vacuum pump 1 is not affected by the sealing device 40.
- the sealing device 40 is inserted into the recess 44 of the pump housing part 14.
- the elastic sealing lip 50 adapts to the inner diameter 17 of the motor housing part 16 during the pump assembly.
- the installed state of the sealing device 40 is shown in FIG. Due to the conical shape of the sealing lip 50 a common and damage-free mounting is ensured.
- the sealing lip 50 of the built-in sealing device 40 bears against the inner diameter 17 of the motor housing part 16 with a small contact pressure.
- the pressure of the lubricant flowing through the sealing device 40 in the interior 54 of the sealing device 40 causes the sealing lip 50 to be pressed more strongly against the inner diameter 17 of the motor housing part 16. As a result, the sealing effect is automatically improved.
- the sealing lip 50 Due to the low bias of the sealing lip 50, this can lift off from the inner diameter 17 of the motor housing part 16 to allow an influx of air from the leakage gap 20 through the lubricant feed passage 22 into the interior of the vacuum pump 1.
- a corresponding recess can be provided on the motor housing part 16 and / or on the pump housing part 14.
- the recess increases the air path cross section and thus the incoming air quantity.
- the vacuum pump 1 according to the invention can thus be aerated in a defined manner after switching off the internal combustion engine, without the suction power of the vacuum pump is affected during operation of the internal combustion engine.
- the sealing device 40 is shown alone in longitudinal section.
- the sealing device 40 is rotationally symmetrical and formed from an elastomeric plastic material which is oil resistant.
- the sealing device 40 can also be used without a filter device and / or without a throttle device.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009002591T DE112009002591A5 (de) | 2008-10-15 | 2009-10-09 | Vakuumpumpe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008051668.6 | 2008-10-15 | ||
DE102008051668 | 2008-10-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010043202A2 true WO2010043202A2 (de) | 2010-04-22 |
WO2010043202A3 WO2010043202A3 (de) | 2010-12-23 |
Family
ID=42106957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2009/001406 WO2010043202A2 (de) | 2008-10-15 | 2009-10-09 | Vakuumpumpe |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112009002591A5 (de) |
WO (1) | WO2010043202A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012222795A1 (de) * | 2012-12-11 | 2014-06-12 | Magna Powertrain Ag & Co. Kg | Kraftfahrzeug mit einem Antriebsmotor und einer Vorrichtung zur Erzeugung eines Unterdrucks für einen Servoverbraucher |
WO2018010793A1 (de) * | 2016-07-14 | 2018-01-18 | Pierburg Pump Technology Gmbh | Kfz-vakuumpumpe |
DE102015212724B4 (de) * | 2015-07-08 | 2019-08-14 | Bayerische Motoren Werke Aktiengesellschaft | Aussenrotorpumpe |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3698728A (en) * | 1971-01-07 | 1972-10-17 | Mc Donnell Douglas Corp | Fluid sealing device |
US4418923A (en) * | 1982-02-15 | 1983-12-06 | Deere & Company | Engine oil passage seal |
DE3906823A1 (de) * | 1988-12-08 | 1990-07-05 | Barmag Barmer Maschf | Fluegelzellen-vakuumpumpe |
US5762341A (en) * | 1997-01-13 | 1998-06-09 | Zygo Mould Limited | O-ring insert |
DE10150302A1 (de) * | 2001-10-11 | 2003-04-30 | Pierburg Gmbh | Vorrichtung zur Erzeugung von Vakuum für Verbraucher in einem Kraftfahrzeug |
US20030178792A1 (en) * | 2002-03-25 | 2003-09-25 | Pridmore Ken T. | Sealing head |
-
2009
- 2009-10-09 DE DE112009002591T patent/DE112009002591A5/de not_active Withdrawn
- 2009-10-09 WO PCT/DE2009/001406 patent/WO2010043202A2/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3698728A (en) * | 1971-01-07 | 1972-10-17 | Mc Donnell Douglas Corp | Fluid sealing device |
US4418923A (en) * | 1982-02-15 | 1983-12-06 | Deere & Company | Engine oil passage seal |
DE3906823A1 (de) * | 1988-12-08 | 1990-07-05 | Barmag Barmer Maschf | Fluegelzellen-vakuumpumpe |
US5762341A (en) * | 1997-01-13 | 1998-06-09 | Zygo Mould Limited | O-ring insert |
DE10150302A1 (de) * | 2001-10-11 | 2003-04-30 | Pierburg Gmbh | Vorrichtung zur Erzeugung von Vakuum für Verbraucher in einem Kraftfahrzeug |
US20030178792A1 (en) * | 2002-03-25 | 2003-09-25 | Pridmore Ken T. | Sealing head |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012222795A1 (de) * | 2012-12-11 | 2014-06-12 | Magna Powertrain Ag & Co. Kg | Kraftfahrzeug mit einem Antriebsmotor und einer Vorrichtung zur Erzeugung eines Unterdrucks für einen Servoverbraucher |
DE102012222795B4 (de) * | 2012-12-11 | 2016-06-09 | Magna powertrain gmbh & co kg | Kraftfahrzeug mit einem Antriebsmotor und einer Vorrichtung zur Erzeugung eines Unterdrucks für einen Servoverbraucher |
DE102015212724B4 (de) * | 2015-07-08 | 2019-08-14 | Bayerische Motoren Werke Aktiengesellschaft | Aussenrotorpumpe |
WO2018010793A1 (de) * | 2016-07-14 | 2018-01-18 | Pierburg Pump Technology Gmbh | Kfz-vakuumpumpe |
CN109416043A (zh) * | 2016-07-14 | 2019-03-01 | 皮尔伯格泵技术有限责任公司 | 机动车真空泵 |
Also Published As
Publication number | Publication date |
---|---|
DE112009002591A5 (de) | 2011-07-28 |
WO2010043202A3 (de) | 2010-12-23 |
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