US20080240945A1 - Motor/Pump Unit - Google Patents

Motor/Pump Unit Download PDF

Info

Publication number
US20080240945A1
US20080240945A1 US11/628,922 US62892205A US2008240945A1 US 20080240945 A1 US20080240945 A1 US 20080240945A1 US 62892205 A US62892205 A US 62892205A US 2008240945 A1 US2008240945 A1 US 2008240945A1
Authority
US
United States
Prior art keywords
pump
housing
motor
flange
shaft
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.)
Abandoned
Application number
US11/628,922
Other languages
English (en)
Inventor
Martin Jordan
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.)
ZF Automotive Germany GmbH
Original Assignee
TRW Automotive 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 TRW Automotive GmbH filed Critical TRW Automotive GmbH
Assigned to TRW AUTOMOTIVE GMBH reassignment TRW AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JORDAN, MARTIN
Publication of US20080240945A1 publication Critical patent/US20080240945A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • 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
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C2/18—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 with similar tooth forms
    • 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
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/90—Alloys not otherwise provided for
    • F05C2201/903—Aluminium alloy, e.g. AlCuMgPb F34,37
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/02—Rubber

Definitions

  • the invention relates to a motor/pump unit, in particular for a servo-steering system.
  • Such motor/pump units are used in motor vehicle technology for the provision of auxiliary forces. In addition to assisting the steering force, such a unit can also be used in an active chassis regulation. Generally, a need exists to design the motor/pump units so as to be more compact.
  • a motor/pump unit comprising a pump housing and an intermediate housing, a pump with a first pump shaft being held in the pump housing, is known.
  • the motor/pump unit includes an electric motor and a single-shaft pump. The motor shaft and the pump shaft are coupled in a central bearing in the intermediate housing.
  • German Utility Model DE 299 16 108 U1 a motor/pump unit is shown with a single shaft penetrating the motor housing and the pump housing. On the shaft both the pump rotor and also the runner of the motor are arranged.
  • a motor/pump unit comprises a pump housing and an intermediate housing.
  • a pump having a first pump shaft is held in the pump housing.
  • the pump housing and the intermediate housing are connected with each other via a flange.
  • the first pump shaft is supported in the flange.
  • the support of the pump shaft in the flange in contrast to a support in the intermediate housing, allows for a very short construction of the pump shaft. Thereby, smaller deviations occur in the truth of rotation, for which reason only relatively simple compensation measures are necessary.
  • Such a compensation is achieved in particular in that the first pump shaft is supported in a bush which is formed in a housing cover closing the pump housing.
  • the pump comprises a second pump shaft which is arranged next to the first pump shaft and is likewise supported in the flange.
  • the pump shafts can each be constructed in one piece with a toothed wheel.
  • the flange is preferably a punched-out plate of an aluminum alloy.
  • the flange is at least partially provided with a NBR (nitrile rubber) coating.
  • the flange size is adapted to the structural conditions of the motor/pump unit and any possible additional functions of the flange (e.g. cooling).
  • a separate motor housing which would have to be fastened accurately in position on the intermediate housing can be dispensed with, in that an electric motor of the motor/pump unit is held in a section of the intermediate housing.
  • FIGURE shows a sectional side view of a motor/pump unit according to the invention.
  • the motor/pump unit 10 shown in the FIGURE comprises a housing cover 12 , a pump housing 14 , an intermediate housing 16 and a housing 18 for a motor, only the motor shaft 28 of which is shown.
  • the stator, rotor, bearing and further details of the motor are not essential for the invention and have been omitted for reasons of clarity.
  • the pump housing 14 is closed on one end side with the housing cover 12 and connected on the other side with the intermediate housing 16 via a flange 20 .
  • One or more centering pins 22 projecting from the pump housing through the flange 20 into the intermediate housing 16 provide for a correct positioning of these three components.
  • an inlet and an outlet are formed for the fluid which is conveyed in a closed circuit.
  • the motor shaft 28 is coupled to a first shaft 30 (drive shaft) of a pump held in the pump housing 14 .
  • a first toothed wheel 32 is arranged, which meshes with a second toothed wheel 36 arranged on a second pump shaft 34 .
  • the toothed wheels 32 , 36 can also be constructed in one piece with the pump shafts 30 and respectively 34 .
  • the two pump shafts 30 , 34 are each supported on one side in a bush 38 formed in the housing cover 12 and on the other side in the flange 20 .
  • the flange 20 is formed as a punched plate, just as the bushes 38 in the housing cover 12 , from an aluminium alloy. To improve the sealing effect and for noise damping, the flange 20 can be coated at corresponding sites with NBR (nitrile rubber).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
US11/628,922 2004-06-08 2005-06-07 Motor/Pump Unit Abandoned US20080240945A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202004009057U DE202004009057U1 (de) 2004-06-08 2004-06-08 Motor/Pumpen-Aggregat
DE20-2004-009-057.0 2004-06-08
PCT/EP2005/006112 WO2005121557A1 (fr) 2004-06-08 2005-06-07 Unite moteur/pompe

Publications (1)

Publication Number Publication Date
US20080240945A1 true US20080240945A1 (en) 2008-10-02

Family

ID=33305389

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/628,922 Abandoned US20080240945A1 (en) 2004-06-08 2005-06-07 Motor/Pump Unit

Country Status (5)

Country Link
US (1) US20080240945A1 (fr)
EP (1) EP1756427A1 (fr)
JP (1) JP2007523293A (fr)
DE (1) DE202004009057U1 (fr)
WO (1) WO2005121557A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100226096A1 (en) * 2009-03-04 2010-09-09 Dieter Best Clamping Part for Pressing Power Components Against a Cooling Surface
KR20170038225A (ko) * 2015-09-30 2017-04-07 삼성전자주식회사 제습기
US11662011B2 (en) 2017-06-16 2023-05-30 Gkn Sinter Metals Ag Pump assembly and method for producing a pump assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106460813B (zh) * 2014-05-30 2020-05-19 派克汉尼芬公司 集成的位移控制泵

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242066A (en) * 1978-08-24 1980-12-30 Commercial Shearing, Inc. Rotary pumps and motors and thrust plates therefor
US5953913A (en) * 1996-08-31 1999-09-21 Mannesmann Vdo Ag System for an electro-hydraulic pressure supply for a power-assist device in a motor vehicle
US6158983A (en) * 1997-04-24 2000-12-12 Trw Inc. Pump having muffler for attenuating noise
US6428285B2 (en) * 1998-06-24 2002-08-06 Luk Fahrzeung-Hydraulik Gmbh & Co. Kg Hydraulic delivery device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293599B (de) * 1958-01-14 1969-04-24 Borg Warner Zahnradpumpe
US4797219A (en) * 1987-04-24 1989-01-10 Exxon Chemical Patents Inc. Novel dispersants for oleaginous compositions
DE19524965A1 (de) * 1995-07-08 1997-01-09 Bosch Gmbh Robert Zahnradmaschine (Pumpe oder Motor)
AU5187398A (en) * 1996-12-03 1998-06-29 Danfoss A/S Motor pump unit
DE19726134A1 (de) * 1997-06-20 1998-12-24 Bosch Gmbh Robert Hydroaggregat
DE29916108U1 (de) * 1999-09-15 2001-01-25 ASF THOMAS INDUSTRIES GMBH, 87700 Memmingen Pumpe
DE10334003A1 (de) * 2002-07-25 2004-02-05 Luk Automobiltechnik Gmbh & Co. Kg Pumpe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242066A (en) * 1978-08-24 1980-12-30 Commercial Shearing, Inc. Rotary pumps and motors and thrust plates therefor
US5953913A (en) * 1996-08-31 1999-09-21 Mannesmann Vdo Ag System for an electro-hydraulic pressure supply for a power-assist device in a motor vehicle
US6158983A (en) * 1997-04-24 2000-12-12 Trw Inc. Pump having muffler for attenuating noise
US6428285B2 (en) * 1998-06-24 2002-08-06 Luk Fahrzeung-Hydraulik Gmbh & Co. Kg Hydraulic delivery device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100226096A1 (en) * 2009-03-04 2010-09-09 Dieter Best Clamping Part for Pressing Power Components Against a Cooling Surface
US8164903B2 (en) * 2009-03-04 2012-04-24 Ebm-Papst Mulfingen Gmbh & Co. Kg Clamping part for pressing power components against a cooling surface
KR20170038225A (ko) * 2015-09-30 2017-04-07 삼성전자주식회사 제습기
CN108136323A (zh) * 2015-09-30 2018-06-08 三星电子株式会社 减湿器
US11077399B2 (en) * 2015-09-30 2021-08-03 Samsung Electronics Co., Ltd. Dehumidifier
KR102435202B1 (ko) * 2015-09-30 2022-08-24 삼성전자주식회사 제습기
US11662011B2 (en) 2017-06-16 2023-05-30 Gkn Sinter Metals Ag Pump assembly and method for producing a pump assembly

Also Published As

Publication number Publication date
DE202004009057U1 (de) 2004-10-14
JP2007523293A (ja) 2007-08-16
WO2005121557A1 (fr) 2005-12-22
EP1756427A1 (fr) 2007-02-28

Similar Documents

Publication Publication Date Title
JP4238894B2 (ja) モータ及びこれを用いたインホイールモータ構造
EP2684722B1 (fr) Dispositif d'entraînement pour véhicule électrique
US8294311B2 (en) Electric motor and electric power steering apparatus
CN106536327B (zh) 机电动力转向系统
US7185732B2 (en) Motor-driven steering assist apparatus
DE502005003654D1 (de) Lenk-und radantrieb für ein flurf örderzeug
US20130342058A1 (en) Drive device for electric vehicle
US20130342059A1 (en) Drive device for electric vehicle
CN112026914B (zh) 电动助力转向装置
US20080240945A1 (en) Motor/Pump Unit
CN103921836B (zh) 用于车辆的电动助力转向系统
JP5676314B2 (ja) 電気自動車用駆動装置
BR9915082A (pt) Acionamento eletromotivo, especialmente para uma bomba destinada a um sistema de direção, assistido por energia, de um veìculo automotor
CN101222157A (zh) 带有用于地面运输工具的驱动轮的行进电机和转向电机的驱动单元
CN107269690B (zh) 车辆转向装置的轴承组件及具备其的车辆转向装置
US20090044649A1 (en) Spur Gear Transmission
US8267218B2 (en) Power operated steering assisting device for vehicles
US20070274848A1 (en) Motor-pump assembly
US20040173039A1 (en) Adjustment drive
CN100443347C (zh) 电动动力转向装置
CN209634185U (zh) 一种用于驱动车桥的abs传感器安装总成
US11958547B2 (en) Steering device
JP5956552B2 (ja) 電気自動車用駆動装置
KR20070060339A (ko) 전동식 파워 스티어링 시스템의 감속기구
US20140302958A1 (en) Drive device having an electrical drive machine

Legal Events

Date Code Title Description
AS Assignment

Owner name: TRW AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JORDAN, MARTIN;REEL/FRAME:020329/0697

Effective date: 20070312

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION