GB9021793D0 - An hydraulic pump - Google Patents

An hydraulic pump

Info

Publication number
GB9021793D0
GB9021793D0 GB909021793A GB9021793A GB9021793D0 GB 9021793 D0 GB9021793 D0 GB 9021793D0 GB 909021793 A GB909021793 A GB 909021793A GB 9021793 A GB9021793 A GB 9021793A GB 9021793 D0 GB9021793 D0 GB 9021793D0
Authority
GB
United Kingdom
Prior art keywords
hydraulic pump
hydraulic
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.)
Granted
Application number
GB909021793A
Other versions
GB2238355A (en
GB2238355B (en
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.)
Ultra Hydraulics Ltd
Original Assignee
Ultra Hydraulics Ltd
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 Ultra Hydraulics Ltd filed Critical Ultra Hydraulics Ltd
Publication of GB9021793D0 publication Critical patent/GB9021793D0/en
Publication of GB2238355A publication Critical patent/GB2238355A/en
Application granted granted Critical
Publication of GB2238355B publication Critical patent/GB2238355B/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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
GB9021793A 1989-10-21 1990-10-08 A gear pump Expired - Fee Related GB2238355B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898923775A GB8923775D0 (en) 1989-10-21 1989-10-21 An hydraulic pump

Publications (3)

Publication Number Publication Date
GB9021793D0 true GB9021793D0 (en) 1990-11-21
GB2238355A GB2238355A (en) 1991-05-29
GB2238355B GB2238355B (en) 1993-08-25

Family

ID=10664980

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898923775A Pending GB8923775D0 (en) 1989-10-21 1989-10-21 An hydraulic pump
GB9021793A Expired - Fee Related GB2238355B (en) 1989-10-21 1990-10-08 A gear pump

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898923775A Pending GB8923775D0 (en) 1989-10-21 1989-10-21 An hydraulic pump

Country Status (1)

Country Link
GB (2) GB8923775D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515879A (en) * 1987-01-29 1996-05-14 Mollo; James R. Load sensed multi-purpose pressure control valve
US5487403A (en) * 1987-01-29 1996-01-30 Mollo; James R. Variable discharge pump with low unload to secondary
GB2277066B (en) * 1993-03-24 1996-02-28 Ultra Hydraulics Ltd Hydraulic flow control valve assemblies
GB9421888D0 (en) * 1994-10-31 1994-12-14 Sauer Sundstrand Ltd Assembly of gear pump and load sensing priority flow valve
GB2298902B (en) * 1995-03-17 1998-06-24 Sauer Sundstrand Ltd Pump with integral priority pressure regulating valve
DE19912299A1 (en) * 1999-03-19 2000-09-21 Bosch Gmbh Robert Hydraulic control device
DE19917593C2 (en) * 1999-04-19 2002-05-02 Hydraulik Ring Gmbh Hydraulic displacement machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787162A (en) * 1956-04-13 1957-12-04 New Prod Corp Improvements in or relating to gear pumps
GB918122A (en) * 1958-05-12 1963-02-13 Hydrosteer Ltd Pump assembly
DE1922360A1 (en) * 1969-05-02 1971-06-16 Danfoss As Oil pump
JPS5549594A (en) * 1978-10-03 1980-04-10 Jidosha Kiki Co Ltd Rotary hydraulic apparatus
GB2038932B (en) * 1978-12-13 1982-10-27 Hobourn Eaton Ltd Positive displacement pump systems
JPS56156489A (en) * 1980-05-06 1981-12-03 Jidosha Kiki Co Ltd Oil pump
DE3018650A1 (en) * 1980-05-16 1981-11-26 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen HIGH PRESSURE PUMP WITH A FLOW CONTROL VALVE
US4610613A (en) * 1985-06-03 1986-09-09 Vilter Manufacturing Corporation Control means for gas compressor having dual slide valves
GB2232208A (en) * 1989-05-08 1990-12-05 Alec Thornelow A variable displacement vane pump

Also Published As

Publication number Publication date
GB2238355A (en) 1991-05-29
GB8923775D0 (en) 1989-12-06
GB2238355B (en) 1993-08-25

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Legal Events

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

Effective date: 19971008