WO2009149682A2 - Module motopompe - Google Patents

Module motopompe Download PDF

Info

Publication number
WO2009149682A2
WO2009149682A2 PCT/DE2009/000686 DE2009000686W WO2009149682A2 WO 2009149682 A2 WO2009149682 A2 WO 2009149682A2 DE 2009000686 W DE2009000686 W DE 2009000686W WO 2009149682 A2 WO2009149682 A2 WO 2009149682A2
Authority
WO
WIPO (PCT)
Prior art keywords
pump
motor
module according
pump module
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.)
Ceased
Application number
PCT/DE2009/000686
Other languages
German (de)
English (en)
Other versions
WO2009149682A3 (fr
Inventor
Marco Grethel
Matthias Gramann
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.)
Schaeffler Buehl Verwaltungs GmbH
LuK Lamellen und Kupplungsbau GmbH
Original Assignee
LuK Lamellen und Kupplungsbau Beteiligungs KG
LuK Lamellen und Kupplungsbau 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
Application filed by LuK Lamellen und Kupplungsbau Beteiligungs KG, LuK Lamellen und Kupplungsbau GmbH filed Critical LuK Lamellen und Kupplungsbau Beteiligungs KG
Priority to DE112009002109T priority Critical patent/DE112009002109A5/de
Publication of WO2009149682A2 publication Critical patent/WO2009149682A2/fr
Publication of WO2009149682A3 publication Critical patent/WO2009149682A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the invention relates to a motor-pump module with a driven by an electric motor positive displacement pump, which comprises a pump housing.
  • the object of the invention is to provide a motor-pump module according to the preamble of claim 1, which is simple in construction and inexpensive to produce.
  • a motor-pump module with a driven by an electric motor positive displacement pump which includes a pump housing, characterized in that the electric motor with a first end face dirt-tight is attached to the pump housing.
  • the electric motor is encapsulated only against dirt, but not against oil.
  • the dirt-tight encapsulation prevents the function of the electric motor from being adversely affected by metallic, in particular magnetic, abrasion, so that it can be arranged in the wet region of a motor vehicle engine, in particular in a transmission passage chamber.
  • a preferred embodiment of the motor-pump module is characterized in that the electric motor with a second end face dirt-tight to a body-mounted housing part of a motor vehicle is mounted.
  • the body-mounted housing part is preferably a transmission wall, a gear cover or an oil pan of the motor vehicle.
  • the motor-pump module according to the invention is preferably fastened to the body-mounted housing part by means of screw connection elements.
  • a simple closure cap for example made of plastic, can be attached to the second end face without the need to alter the design of the electric motor.
  • a motor-pump module with a driven by an electric motor positive displacement pump which includes a pump housing, in particular in a previously described motor-pump module, that the pump housing made of a different material than at least one Displacer of the positive displacement pump is formed.
  • the displacement body is preferably formed from a steel material.
  • the other material is preferably a softer material that is less expensive to process or process.
  • Another preferred embodiment of the motor-pump module is characterized in that the pump housing is formed of a plastic material.
  • the plastic material is preferably a duroplastic plastic material.
  • the duroplastic plastic material is preferably so-called bulk molding compounds.
  • the pump housing is preferably designed as an injection molded part.
  • the motor-pump module is characterized in that the pump housing is formed of an aluminum material.
  • the pump housing is preferably designed as a die-cast aluminum part.
  • a further preferred embodiment of the motor-pump module is characterized in that the pump housing comprises a pump flange which is fastened by means of screw connections to the electric motor.
  • the pump flange is preferably provided with a recess, preferably a depression, for at least one displacement body of the positive displacement pump.
  • the motor-pump module is characterized in that the pump flange is closed on the side facing away from the electric motor by a pump cover.
  • the pump cover is preferably used to close the recess with the displacer.
  • the pump flange and the pump cover together represent the pump housing.
  • Another preferred embodiment of the motor-pump module is characterized in that the electric motor is designed brushless.
  • Brushless electric motors can basically be arranged in the transmission passage. Due to the dirt-tight encapsulation of the electric motor is prevented in a simple manner that the function of the electric motor is affected by metallic, especially magnetic abrasion. Oil-tight encapsulation is not required.
  • the positive displacement pump is designed as a gear pump or internal gear pump or gerotor pump.
  • the positive displacement pump can also be designed as a vane pump, or spindle pump.
  • a further preferred embodiment of the motor-pump module is characterized in that the positive displacement pump comprises an outer displacement body which is rotatably mounted in a bearing ring.
  • the outer displacement body is preferably an outer wheel with an inner toothing. In the internal toothing of the outer wheel engages, for example, an external toothing of a driven inner wheel.
  • the bearing ring is formed of a material with the same or very similar thermal expansion as the displacement body.
  • both the bearing ring and the displacement body are formed from a steel material.
  • Another preferred embodiment of the motor-pump module is characterized in that the bearing ring has the same or slightly greater height as the displacement body.
  • the height is the extent of the displacer or bearing ring in the axial direction.
  • Another preferred embodiment of the motor-pump module is characterized in that a compensation plate rests against the bearing ring.
  • the compensation plate is acted upon via a pressure field with the respective pump pressure.
  • the compensation plate bends in the direction of the displacement body and thus minimizes an axial gap. As a result, the efficiency of the positive displacement pump can be increased.
  • the outer ring according to the invention is not used as a radial bearing, but only as a support for the compensation plate to avoid the Axialspaltver notedrung by different thermal expansions of Pumpenverdränger and housing parts as described above.
  • Another preferred embodiment of the motor-pump module is characterized in that the positive displacement pump is mounted directly on a motor wool of the electric motor. As a result, the structure of the positive displacement pump is further simplified.
  • the motor-pump module 1 shows a motor-pump module 1 according to an embodiment of the invention is shown in longitudinal section.
  • the motor-pump module 1 comprises a positive displacement pump 2, which is designed as an internal gear pump or gerotor pump.
  • the motor pump module 1 according to the invention is preferably used in motor vehicles with hydraulically controlled automatic transmissions and start / stop functionality. In this case, the motor-pump module 1 according to the invention serves to keep the hydraulic control in readiness in the stop phases.
  • the displacement pump 2 is driven by an electric motor 4, which is preferably designed as a brushless electric motor.
  • Brushless electric motors can basically be used in the transmission passage of the motor vehicle.
  • conventional electric motors are either placed outside the transmission passage or oil-sealed.
  • the electric motor 4 is encapsulated by means of existing assemblies only against dirt, but not against oil.
  • the positive displacement pump 2 is equipped with a plastic housing or an aluminum housing, whereby the functional reliability of the positive displacement pump is ensured by simple inserts of technologically sophisticated geometries.
  • the motor shaft 5 is rotatably connected by means of a coupling 8, in particular a two-flat, with a first displacement body 11 of the positive displacement pump 2.
  • the first displacement body 11 cooperates with a second displacement body 12 to suck in a hydraulic medium, in particular oil, in a working space of the positive displacement pump 2 and to pressurize it.
  • the first displacement body 11 is designed as a pinion or internal gear, which has an external toothing, which is in engagement with an internal toothing of the second displacement body 12, which is designed as an external gear or ring gear.
  • the second displacement body 12 is arranged eccentrically to the first displacement body 11. Due to the interaction between the two displacement bodies 11, 12, a suction and a pressure chamber is created
  • the two displacement bodies 11, 12 are arranged in a recess 14 of a pump flange 15.
  • the recess 14 of the pump flange 15 is closed by a pump cover 16.
  • the pump cover 16 and the pump flange 15 together represent the pump housing 18 of the positive displacement pump 2.
  • the second displacement body 12 is rotatably supported in the recess 14 of the pump flange 15 by means of a bearing ring 20.
  • the positive displacement pump 2 is mounted directly on the motor shaft 5.
  • the two displacement body 11, 12 and the bearing ring 20 are made of a material with the same or similar thermal expansion, in particular a steel material.
  • the displacement body 11, 12 and the bearing ring 20 have substantially the same height, that is, the same extent in the axial direction.
  • the term axial direction refers to the axis of rotation of the motor shaft 5.
  • Axial means in the direction or parallel to the axis of rotation of the motor shaft fifth
  • a compensation plate 22 On the bearing ring 20 is located on a compensation plate 22, which has substantially the shape of a circular disc with openings that allow the targeted passage of hydraulic medium. Radially outwardly, the compensation plate 22 is sealed by a pressure field seal 24 disposed in a groove of the pump cover 16 between the pump cover 16 and the pump flange 15.
  • the compensation plate 22 is acted upon radially within the pressure field seal 24, which is designed for example as an O-ring, via a pressure field with the respective pump pressure.
  • the compensation plate 22 which is also referred to as axial disk, bends in the direction of the displacer 11, 12 and thus minimizes a constructive axial gap. As a result, the efficiency of the positive displacement pump 2 is increased.
  • the pump cover 16 is fastened to the electric motor 4 together with the pump flange 15 by means of screw connection elements 31, 32.
  • the pump flange 15 is designed so that a first end face 41 of the electric motor 4, which is application-dependent at its two end faces open, closed by the pump flange 15 dirt-tight.
  • a second end face 42 of the electric motor 4 is sealed dirt-tight by appropriate design of a mounting surface, which is provided on a body-mounted housing part 50.
  • the body-mounted housing part 50 is preferably a transmission housing wall.
  • the attachment of the motor-pump module 1 to the body is made by further screw connection elements (not shown), which are screwed into the body-mounted housing part 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressor (AREA)

Abstract

L'invention concerne un module motopompe comprenant une pompe volumétrique actionnée par un moteur électrique, qui présente un carter. L'invention se caractérise en ce que le moteur électrique est conçu étanche à la poussière et présente à cet effet une première face frontale au niveau du carter de pompe.
PCT/DE2009/000686 2008-06-09 2009-05-18 Module motopompe Ceased WO2009149682A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112009002109T DE112009002109A5 (de) 2008-06-09 2009-05-18 Motor-pumpen-modul

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008027444 2008-06-09
DE102008027444.5 2008-06-09

Publications (2)

Publication Number Publication Date
WO2009149682A2 true WO2009149682A2 (fr) 2009-12-17
WO2009149682A3 WO2009149682A3 (fr) 2010-07-22

Family

ID=41268994

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/000686 Ceased WO2009149682A2 (fr) 2008-06-09 2009-05-18 Module motopompe

Country Status (2)

Country Link
DE (2) DE102009021890A1 (fr)
WO (1) WO2009149682A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863845A (zh) * 2014-02-21 2015-08-26 Lg伊诺特有限公司 电动泵
WO2017140311A1 (fr) * 2016-02-15 2017-08-24 Bühler Motor GmbH Dispositif d'entraînement de pompe d'injection d'un agent réducteur dans les systèmes de gaz d'échappement des véhicules à moteur, famille de moteurs et de pompes modulaires destinée à former des différents dispositifs d'entraînement de pompe comportant plusieurs tels moteurs électriques
US11725653B2 (en) 2020-03-12 2023-08-15 Schwäbische Hüttenwerke Automotive GmbH Pump insert and pump array comprising such a pump insert

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112012005211A5 (de) 2011-12-13 2014-09-18 Schaeffler Technologies AG & Co. KG Antriebsstrang mit einem Doppelkupplungsgetriebe und Verfahren zu dessen Steuerung
KR102118028B1 (ko) * 2013-11-19 2020-06-02 엘지이노텍 주식회사 전동식 펌프
DE102015010846B4 (de) * 2015-08-19 2017-04-13 Nidec Gpm Gmbh Elektromotorisch angetriebene Vakuumpumpe
ITUB201655126U1 (it) * 2016-03-02 2017-09-02 Fluid O Tech Srl Assieme di contenimento elastico per una pompa.
US20250101978A1 (en) * 2022-01-12 2025-03-27 Schaeffler Technologies AG & Co. KG Tandem pump comprising a main flow and a dry sump flow
DE102022127805A1 (de) * 2022-10-21 2024-05-02 Schaeffler Technologies AG & Co. KG Elektrischer Pumpenaktor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002048060A (ja) * 2000-07-31 2002-02-15 Zexel Valeo Climate Control Corp ハイブリッドコンプレッサ
JP2003269345A (ja) * 2002-03-13 2003-09-25 Aisin Seiki Co Ltd 電動オイルポンプ
EP1580431A4 (fr) * 2002-12-24 2009-07-01 Jtekt Corp Pompe a engrenages interne electrique
DE602004023556D1 (de) * 2003-05-28 2009-11-26 Aisin Seiki Elektrisch angetriebene Pumpe
JP2008086117A (ja) * 2006-09-27 2008-04-10 Aisin Seiki Co Ltd 電動式流体ポンプ

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863845A (zh) * 2014-02-21 2015-08-26 Lg伊诺特有限公司 电动泵
EP2916006A1 (fr) * 2014-02-21 2015-09-09 LG Innotek Co., Ltd. Pompe électrique
US10006458B2 (en) 2014-02-21 2018-06-26 Lg Innotek Co., Ltd. Electric gear pump with specific proportions for the fluid passages
US10215173B2 (en) 2014-02-21 2019-02-26 Lg Innotek Co., Ltd. Electric gear pump with specific proportions for the fluid passages
WO2017140311A1 (fr) * 2016-02-15 2017-08-24 Bühler Motor GmbH Dispositif d'entraînement de pompe d'injection d'un agent réducteur dans les systèmes de gaz d'échappement des véhicules à moteur, famille de moteurs et de pompes modulaires destinée à former des différents dispositifs d'entraînement de pompe comportant plusieurs tels moteurs électriques
US10920771B2 (en) 2016-02-15 2021-02-16 Bühler Motor GmbH Pump drive for conveying a reducing agent for motor vehicle exhaust gas systems, modular motor and pump family for forming different pump drives with several such electric motors
US11725653B2 (en) 2020-03-12 2023-08-15 Schwäbische Hüttenwerke Automotive GmbH Pump insert and pump array comprising such a pump insert

Also Published As

Publication number Publication date
DE112009002109A5 (de) 2011-05-26
DE102009021890A1 (de) 2009-12-10
WO2009149682A3 (fr) 2010-07-22

Similar Documents

Publication Publication Date Title
WO2009149682A2 (fr) Module motopompe
EP2079930B1 (fr) Pompe à piston pour système de freinage de véhicule, munie d'une tige de piston
EP1068449B1 (fr) Groupe motopompe pour dispositif de freinage hydraulique a regulation antipatinage d'un vehicule
WO2019002206A1 (fr) Pompe à broche hélicoïdale, groupe d'alimentation en carburant et unité d'alimentation en carburant
EP2038551A1 (fr) Pompe à piston pour un système de freinage de véhicule comprenant un élément d'étanchéité
EP2201239B1 (fr) Pompe d'alimentation en carburant, notamment pour un système d'alimentation en carburant d'un moteur à combustion interne à pistons
EP0713973B1 (fr) Pompe à huile
EP1255666B1 (fr) Installation de freinage
WO2014117889A2 (fr) Pompe à engrenages intérieurs
EP1563188A1 (fr) Ensemble moteur-pompe
WO2008058801A1 (fr) Pompe à piston pour un système de freinage de véhicule
EP1101948B1 (fr) Pompe de refroidissement à eau, en particulier pour moteur à combustion interne
DE102013204616B4 (de) 2Innenzahnradpumpe
EP1310672B1 (fr) Pompe à carburant pour un système d'alimentation de moteur à combustion interne et système d'alimentation
DE102007051352A1 (de) Hydraulische Zahnradmaschine und Verfahren zur Ansteuerung einer hydraulischen Zahnradmaschine
DE102014200818A1 (de) Zweigeteilter Stator mit kaltverschweißtem Deckel
DE102013113362A1 (de) Regelbare Pumpe für eine Verbrennungskraftmaschine
DE102012213771B4 (de) Innenzahnradpumpe
DE102016216717A1 (de) Getriebemotorantrieb mit im Getriebegehäuse integrierter Lagerbrille
DE19627668A1 (de) Antriebsvorrichtung, insbesondere als Lenkhilfe für Kraftfahrzeuge
EP3762607B1 (fr) Dispositif de pompage pour un boîtier de système d'un véhicule
DE102008019925A1 (de) Hydraulische Zahnradmaschine und Verfahren zum Abdichten einer hydraulischen Zahnradmaschine
EP2405142B1 (fr) Composant de pompe centrifuge
WO2019162063A1 (fr) Actionneur électrohydraulique
DE102018210962A1 (de) Ölpumpe und Verfahren zu deren Herstellung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09761304

Country of ref document: EP

Kind code of ref document: A2

REF Corresponds to

Ref document number: 112009002109

Country of ref document: DE

Date of ref document: 20110526

Kind code of ref document: P

REG Reference to national code

Ref country code: DE

Ref legal event code: R225

Ref document number: 112009002109

Country of ref document: DE

Effective date: 20110526

122 Ep: pct application non-entry in european phase

Ref document number: 09761304

Country of ref document: EP

Kind code of ref document: A2