DE59104131D1 - Internal gear pump for hydraulic fluid. - Google Patents

Internal gear pump for hydraulic fluid.

Info

Publication number
DE59104131D1
DE59104131D1 DE59104131T DE59104131T DE59104131D1 DE 59104131 D1 DE59104131 D1 DE 59104131D1 DE 59104131 T DE59104131 T DE 59104131T DE 59104131 T DE59104131 T DE 59104131T DE 59104131 D1 DE59104131 D1 DE 59104131D1
Authority
DE
Germany
Prior art keywords
internal gear
gear pump
hydraulic fluid
pump
journal
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.)
Expired - Fee Related
Application number
DE59104131T
Other languages
German (de)
Inventor
Siegfried Hertell
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.)
Magna Powertrain Hueckeswagen GmbH
Original Assignee
Barmag Luk Automobiltechnik GmbH and Co KG
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 Barmag Luk Automobiltechnik GmbH and Co KG filed Critical Barmag Luk Automobiltechnik GmbH and Co KG
Application granted granted Critical
Publication of DE59104131D1 publication Critical patent/DE59104131D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
    • F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
    • F04C15/068—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type of the elastic type, e.g. reed valves
    • 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

Landscapes

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

Abstract

The external gear of the internal gear pump is stationary and forms a closed internal chamber. The smaller internal gear is arranged so that it is free to rotate on a driven eccentric cam (11) and meshes with the external gear. The eccentric cam (11) is freely rotatably mounted on a journal (10) concentric with the pump axis (13). Inlet is by way of a recess in the front side of the journal. This recess is connected by radial holes or grooves in the internal gear with the inlet side of the pump. <IMAGE>
DE59104131T 1990-09-01 1991-08-17 Internal gear pump for hydraulic fluid. Expired - Fee Related DE59104131D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4027825 1990-09-01

Publications (1)

Publication Number Publication Date
DE59104131D1 true DE59104131D1 (en) 1995-02-16

Family

ID=6413452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59104131T Expired - Fee Related DE59104131D1 (en) 1990-09-01 1991-08-17 Internal gear pump for hydraulic fluid.

Country Status (4)

Country Link
EP (1) EP0474001B1 (en)
JP (1) JP3056292B2 (en)
AT (1) ATE116719T1 (en)
DE (1) DE59104131D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579981B1 (en) * 1992-06-29 1996-10-23 LuK Automobiltechnik GmbH &amp; Co. KG Internal gear pump for hydraulic fluids
IT1271052B (en) * 1993-11-18 1997-05-26 INTERNAL GEAR PUMP WITH VOLUMETRIC PROJECTIONS
DE102007022215A1 (en) * 2007-05-11 2008-11-13 Robert Bosch Gmbh Pump assembly for synchronous pressurization of two fluid columns
CN105422442A (en) * 2015-12-31 2016-03-23 江苏驰翔精密齿轮股份有限公司 Internal gear pump
FR3105409B1 (en) * 2019-12-19 2021-12-17 Commissariat Energie Atomique High sensitivity electromagnetic radiation detection component and method of manufacturing such component

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834735A1 (en) * 1978-08-08 1980-02-14 Buehl Volks Raiffeisenbank LIQUID PUMP, ESPECIALLY FOR LIQUIDS OF LOW VISCOSITY, LIKE WATER, ALCOHOLS AND THE LIKE
DE3005657C2 (en) * 1980-02-15 1987-01-02 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Gear pump
DE3444859A1 (en) * 1983-12-14 1985-06-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Rotary cellular pump for hydraulic systems
DE3504783A1 (en) * 1984-02-15 1985-10-24 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Gear pump with internal toothing
GB2219631B (en) * 1988-06-09 1992-08-05 Concentric Pumps Ltd Improvements relating to gerotor pumps

Also Published As

Publication number Publication date
JPH04234585A (en) 1992-08-24
JP3056292B2 (en) 2000-06-26
ATE116719T1 (en) 1995-01-15
EP0474001B1 (en) 1995-01-04
EP0474001A1 (en) 1992-03-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LUK AUTOMOBILTECHNIK GMBH & CO. KG, 42499 HUECKESW

8327 Change in the person/name/address of the patent owner

Owner name: IXETIC HUECKESWAGEN GMBH, 42499 HUECKESWAGEN, DE

8339 Ceased/non-payment of the annual fee