EP0964159A3 - Gerotor pump - Google Patents

Gerotor pump Download PDF

Info

Publication number
EP0964159A3
EP0964159A3 EP99110645A EP99110645A EP0964159A3 EP 0964159 A3 EP0964159 A3 EP 0964159A3 EP 99110645 A EP99110645 A EP 99110645A EP 99110645 A EP99110645 A EP 99110645A EP 0964159 A3 EP0964159 A3 EP 0964159A3
Authority
EP
European Patent Office
Prior art keywords
chamber
pump
gerotor
rotor
liquid
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Withdrawn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
EP99110645A
Other languages
German (de)
French (fr)
Other versions
EP0964159A2 (en
Inventor
Manfred Zucht
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.)
Bavaria Pumpen GmbH
Original Assignee
Bavaria Pumpen 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 Bavaria Pumpen GmbH filed Critical Bavaria Pumpen GmbH
Publication of EP0964159A2 publication Critical patent/EP0964159A2/en
Publication of EP0964159A3 publication Critical patent/EP0964159A3/en
Withdrawn legal-status Critical Current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
    • F04C2/10—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
    • F04C2/102—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 the two members rotating simultaneously around their respective axes
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • 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
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]

Landscapes

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

Abstract

Eine Gerotorpumpe für flüssige Medien umfaßt ein Pumpengehäuse (3, 29), eine zylindrische Kammer (5) in dem Pumpengehäuse (3, 29), einen in der zylindrischen Kammer (5) aufgenommenen Gerotor-Laufsatz (9), der von einer Pumpenantriebswelle (11) rotierend anzutreiben ist, um die zu pumpende Flüssigkeit von einem Sauganschluß (31) der Pumpe her in einen Ansaugbereich der Kammer (5) anzusaugen und die angesaugte Pumpflüssigkeit aus einem Ausstoßbereich der Kammer (5) zu einem Druckanschluß (33) hin auszutreiben, wobei der Gerotor-Laufsatz (9) einen Außenrotor (43) mit einer der Umfangsfläche (6) der Kammer (5) radial zugewandten Außenumfangafläche (8) aufweist. Zwischen den radial einander gegenüberliegenden Umfangsflächen (6, 8) der Kammer (5) und des Außenrotors (43) ist ein Wälzlager (90) oder ein Gleitlagerelement (90) zur radialen Lagerung des Außenrotors (43) in der Kammer (5) angeordnet. Hierdurch erreicht man auch bei starker Belastung über eine lange Lebensdauer ausgezeichnete Pumplaufeigenschaften.

Figure 00000001
A gerotor pump for liquid media comprises a pump housing (3, 29), a cylindrical chamber (5) in the pump housing (3, 29), a gerotor rotor (9) accommodated in the cylindrical chamber (5), which is driven by a pump drive shaft ( 11) is to be driven in rotation in order to draw in the liquid to be pumped from a suction connection (31) of the pump into a suction area of the chamber (5) and to drive out the pumped liquid from a discharge area of the chamber (5) to a pressure connection (33), wherein the gerotor rotor set (9) has an outer rotor (43) with an outer peripheral surface (8) radially facing the peripheral surface (6) of the chamber (5). A roller bearing (90) or a sliding bearing element (90) for the radial mounting of the outer rotor (43) in the chamber (5) is arranged between the radially opposite circumferential surfaces (6, 8) of the chamber (5) and the outer rotor (43). As a result, excellent pump running properties are achieved even under heavy loads over a long service life.
Figure 00000001
EP99110645A 1998-06-12 1999-06-02 Gerotor pump Withdrawn EP0964159A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29810577U 1998-06-12
DE29810577U DE29810577U1 (en) 1998-06-12 1998-06-12 Gerotor pump for liquid media

Publications (2)

Publication Number Publication Date
EP0964159A2 EP0964159A2 (en) 1999-12-15
EP0964159A3 true EP0964159A3 (en) 2001-01-17

Family

ID=8058471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110645A Withdrawn EP0964159A3 (en) 1998-06-12 1999-06-02 Gerotor pump

Country Status (2)

Country Link
EP (1) EP0964159A3 (en)
DE (1) DE29810577U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000313A1 (en) * 2009-01-20 2010-07-22 BSH Bosch und Siemens Hausgeräte GmbH Vending Machine
DE102011089528B3 (en) * 2011-12-22 2013-04-11 Continental Automotive Gmbh Pump for pumping air used in motor vehicle, has pump casings and internally toothed external rotor located in pump housing, where external rotor is mounted at external side of radial bearings, and inner rotor is engaged with external rotor
BE1025520B1 (en) 2017-08-29 2019-04-03 Atlas Copco Airpower Naamloze Vennootschap Machine provided with an oil pump and a method for starting such a machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110166A (en) * 1964-07-09 1968-04-18 Eickmann Karl Improvements in or relating to an internally-meshing gear pump or motor
DE1553211A1 (en) * 1966-09-09 1970-11-05 Karl Stock Hydraulic motor or hydraulic pump
DE2114874A1 (en) * 1971-03-27 1972-10-12 Dowty Technical Developments Ltd., Brockhampton, Cheltenham (Großbritannien) Hydraulic displacement pump
US5618171A (en) * 1994-01-21 1997-04-08 Cerasiv Gmbh Innovatives-Keramik-Engineering Supply unit with a ceramic internal gear pump
WO1997021031A1 (en) * 1995-12-05 1997-06-12 Danfoss A/S Pump or motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110166A (en) * 1964-07-09 1968-04-18 Eickmann Karl Improvements in or relating to an internally-meshing gear pump or motor
DE1553211A1 (en) * 1966-09-09 1970-11-05 Karl Stock Hydraulic motor or hydraulic pump
DE2114874A1 (en) * 1971-03-27 1972-10-12 Dowty Technical Developments Ltd., Brockhampton, Cheltenham (Großbritannien) Hydraulic displacement pump
US5618171A (en) * 1994-01-21 1997-04-08 Cerasiv Gmbh Innovatives-Keramik-Engineering Supply unit with a ceramic internal gear pump
WO1997021031A1 (en) * 1995-12-05 1997-06-12 Danfoss A/S Pump or motor

Also Published As

Publication number Publication date
DE29810577U1 (en) 1999-10-21
EP0964159A2 (en) 1999-12-15

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