EP1756427A1 - Unite moteur/pompe - Google Patents

Unite moteur/pompe

Info

Publication number
EP1756427A1
EP1756427A1 EP05747801A EP05747801A EP1756427A1 EP 1756427 A1 EP1756427 A1 EP 1756427A1 EP 05747801 A EP05747801 A EP 05747801A EP 05747801 A EP05747801 A EP 05747801A EP 1756427 A1 EP1756427 A1 EP 1756427A1
Authority
EP
European Patent Office
Prior art keywords
pump
housing
flange
motor
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.)
Withdrawn
Application number
EP05747801A
Other languages
German (de)
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
Publication of EP1756427A1 publication Critical patent/EP1756427A1/fr
Withdrawn legal-status Critical Current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
    • 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 power steering system, with a pump housing and an intermediate housing, a pump having a first pump shaft being accommodated in the pump housing.
  • Motor pump units of this type are used in automotive engineering to provide auxiliary workers. In addition to assisting the steering force, such a unit can also be used for active chassis control. There is a general need to make the motor / pump units even more compact. From DE 196 35 411 AI a generic motor / pump unit with an electric motor and a single-shaft pump is known, in which the motor shaft and the pump shaft are coupled in a central bearing in the intermediate housing.
  • DE 299 16 108 U1 shows a motor / pump unit with a single shaft which passes through the motor housing and the pump housing and on which both the pump rotor and the rotor of the motor are arranged.
  • the invention creates a compact, functionally optimized, but nevertheless inexpensive motor / pump unit.
  • a motor / pump unit of the type mentioned that the pump housing and the intermediate housing are connected to one another via a flange and the first pump shaft in
  • Flange is mounted.
  • the bearing of the pump shaft in the flange allows in
  • Such compensation is achieved in particular in that the first pump shaft is mounted in a bushing which is formed in a housing cover which closes the pump housing.
  • the pump holds a second pump shaft which is arranged next to the first pump shaft and is also mounted in the flange.
  • the pump shafts can each be integrally formed with a gear.
  • the flange is preferably a stamped plate from a
  • the flange is at least partially provided with an NBR (nitrile rubber) coating.
  • NBR nonrile rubber
  • the flange size is matched to the structural conditions of the motor / pump unit and any additional functions of the flange (e.g. cooling).
  • a separate motor housing which would have to be attached to the intermediate housing in the correct position, can be dispensed with by accommodating an electric motor of the motor / pump unit in a section of the intermediate housing.
  • the motor / pump unit 10 shown in the figure includes one
  • Housing cover 12 a pump housing 14, an intermediate housing 16 and a housing 18 for a motor, of which only the motor shaft 28 is shown.
  • Rotor, bearing and other details of the motor are not essential for the invention and have been omitted for reasons of clarity.
  • the pump housing 14 which is closed on one end side with the housing cover 12, is connected on the other end side to 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 ensure correct positioning of these three components.
  • an inlet and an outlet (not shown) for the fluid conveyed in a closed circuit are formed in the intermediate housing 16.
  • the motor shaft 28 is connected to a first shaft 30 (drive shaft)
  • Pump housing 14 coupled pump coupled.
  • a first gear wheel 32 is arranged on the drive shaft 30, which meshes with a second gear wheel 36 arranged on a second pump shaft 34.
  • the gears 32, 36 can also be formed in one piece with the pump shafts 30 and 34, respectively.
  • the two pump shafts 30, 34 are each mounted 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 stamped plate as well as the bushings 38 in the housing cover 12 from an aluminum alloy. To improve the sealing effect and to reduce noise, the flange 20 can be coated with NBR (nitrile rubber) at appropriate points.
  • 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)

Abstract

La présente invention concerne une unité moteur/pompe destinée notamment à un système de direction assistée, comprenant un boîtier de pompe (14) et un boîtier intermédiaire (16), le boîtier de pompe (14) comprenant une pompe qui comprend un premier arbre de pompe (30). Le boîtier de pompe (14) et le boîtier intermédiaire (16) sont reliés par un flasque (20), et le premier arbre de pompe (30) est monté dans ledit flasque (20).
EP05747801A 2004-06-08 2005-06-07 Unite moteur/pompe Withdrawn EP1756427A1 (fr)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
EP1756427A1 true EP1756427A1 (fr) 2007-02-28

Family

ID=33305389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05747801A Withdrawn EP1756427A1 (fr) 2004-06-08 2005-06-07 Unite moteur/pompe

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)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2227078T3 (da) * 2009-03-04 2012-02-20 Ebm Papst Mulfingen Gmbh & Co Spændekomponent til at trykke ydelseskomponenter fast til en køleflade
WO2015184243A1 (fr) * 2014-05-30 2015-12-03 Parker-Hannifin Corporation Pompe à commande de cylindrée intégrée
KR102435202B1 (ko) * 2015-09-30 2022-08-24 삼성전자주식회사 제습기
IT201700067423A1 (it) 2017-06-16 2018-12-16 Gkn Sinter Metals Ag Disposizione di pompa e procedimento per la produzione di una disposizione di pompa.

Family Cites Families (11)

* 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
US4242066A (en) * 1978-08-24 1980-12-30 Commercial Shearing, Inc. Rotary pumps and motors and thrust plates therefor
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)
DE19635411A1 (de) * 1996-08-31 1998-03-05 Mannesmann Vdo Ag Anordnung für eine elektrohydraulische Druckversorgung für eine Hilfskrafteinrichtung in einem Kraftfahrzeug
EP0943056B1 (fr) * 1996-12-03 2003-08-20 Danfoss A/S Unite motopompe
US6158983A (en) * 1997-04-24 2000-12-12 Trw Inc. Pump having muffler for attenuating noise
DE19726134A1 (de) * 1997-06-20 1998-12-24 Bosch Gmbh Robert Hydroaggregat
DE19927400A1 (de) * 1998-06-24 1999-12-30 Luk Fahrzeug Hydraulik Hydraulische Fördereinrichtung
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005121557A1 *

Also Published As

Publication number Publication date
DE202004009057U1 (de) 2004-10-14
WO2005121557A1 (fr) 2005-12-22
US20080240945A1 (en) 2008-10-02
JP2007523293A (ja) 2007-08-16

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Inventor name: JORDAN, MARTIN

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