GB2284638B - An internal-geared pump - Google Patents

An internal-geared pump

Info

Publication number
GB2284638B
GB2284638B GB9423129A GB9423129A GB2284638B GB 2284638 B GB2284638 B GB 2284638B GB 9423129 A GB9423129 A GB 9423129A GB 9423129 A GB9423129 A GB 9423129A GB 2284638 B GB2284638 B GB 2284638B
Authority
GB
United Kingdom
Prior art keywords
internal
geared pump
geared
pump
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
GB9423129A
Other versions
GB2284638A (en
GB9423129D0 (en
Inventor
Rolf Adamietz
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.)
Barmag Luk Automobiltechnik GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6502830&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2284638(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Barmag Luk Automobiltechnik GmbH and Co KG filed Critical Barmag Luk Automobiltechnik GmbH and Co KG
Publication of GB9423129D0 publication Critical patent/GB9423129D0/en
Publication of GB2284638A publication Critical patent/GB2284638A/en
Application granted granted Critical
Publication of GB2284638B publication Critical patent/GB2284638B/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
    • 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
    • F04C2/084—Toothed wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
GB9423129A 1993-11-18 1994-11-16 An internal-geared pump Expired - Fee Related GB2284638B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4339280 1993-11-18

Publications (3)

Publication Number Publication Date
GB9423129D0 GB9423129D0 (en) 1995-01-04
GB2284638A GB2284638A (en) 1995-06-14
GB2284638B true GB2284638B (en) 1998-05-27

Family

ID=6502830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9423129A Expired - Fee Related GB2284638B (en) 1993-11-18 1994-11-16 An internal-geared pump

Country Status (4)

Country Link
DE (1) DE4440782C5 (en)
FR (1) FR2712638A1 (en)
GB (1) GB2284638B (en)
IT (1) IT1271052B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347843B1 (en) * 1998-04-22 2002-02-19 Denso Corporation Pump equipment and method for assembling same
DE112004000064D2 (en) * 2003-05-23 2005-07-28 Luk Automobiltech Gmbh & Co Kg gear pump
DE102016121240A1 (en) 2016-11-07 2018-05-09 Nidec Gpm Gmbh Electric gerotor pump and method of making same
DE102018204086B4 (en) * 2018-03-16 2023-10-12 Eckerle Technologies GmbH Gear fluid machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362906A2 (en) * 1986-07-19 1990-04-11 Barmag Ag Internal gear pump
EP0473025A1 (en) * 1990-08-20 1992-03-04 BARMAG LUK AUTOMOBILTECHNIK GMBH & CO.KG Internal-gear pump for hydraulic fluid
EP0474001A1 (en) * 1990-09-01 1992-03-11 BARMAG LUK AUTOMOBILTECHNIK GMBH & CO.KG Internal gear pump for hydraulic fluids
EP0579981A1 (en) * 1992-06-29 1994-01-26 LuK Automobiltechnik GmbH & Co. KG Internal gear pump for hydraulic fluids

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130006A (en) * 1976-04-23 1977-11-01 Hitachi Ltd Gear pump
DE3444859A1 (en) * 1983-12-14 1985-06-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Rotary cellular pump for hydraulic systems
DE3448253C2 (en) * 1983-12-14 1991-05-16 Barmag Ag, 5630 Remscheid, De
DE3417832A1 (en) * 1984-05-14 1985-11-14 Rudolf Prof. Dr.-Ing. Röper Simple-symmetric toothing for internal and external gear pumps
DE3481536D1 (en) * 1984-09-05 1990-04-12 Hobourn Engineering Ltd PUMP.
DE3737961A1 (en) * 1987-11-07 1989-05-18 Barmag Barmer Maschf Internal-gear pump
DE4338876C2 (en) * 1993-11-13 2001-10-18 Mannesmann Rexroth Ag Hydraulic gear machine (hydraulic pump or hydraulic motor)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362906A2 (en) * 1986-07-19 1990-04-11 Barmag Ag Internal gear pump
EP0473025A1 (en) * 1990-08-20 1992-03-04 BARMAG LUK AUTOMOBILTECHNIK GMBH & CO.KG Internal-gear pump for hydraulic fluid
EP0474001A1 (en) * 1990-09-01 1992-03-11 BARMAG LUK AUTOMOBILTECHNIK GMBH & CO.KG Internal gear pump for hydraulic fluids
EP0579981A1 (en) * 1992-06-29 1994-01-26 LuK Automobiltechnik GmbH & Co. KG Internal gear pump for hydraulic fluids

Also Published As

Publication number Publication date
DE4440782C2 (en) 2002-12-05
DE4440782C5 (en) 2006-05-24
GB2284638A (en) 1995-06-14
DE4440782A1 (en) 1995-07-20
IT1271052B (en) 1997-05-26
ITMI942211A0 (en) 1994-10-28
FR2712638A1 (en) 1995-05-24
ITMI942211A1 (en) 1996-04-28
GB9423129D0 (en) 1995-01-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051116