ES2083824T3 - INTERNAL VARIABLE EXPENDITURE PUMP. - Google Patents

INTERNAL VARIABLE EXPENDITURE PUMP.

Info

Publication number
ES2083824T3
ES2083824T3 ES93302689T ES93302689T ES2083824T3 ES 2083824 T3 ES2083824 T3 ES 2083824T3 ES 93302689 T ES93302689 T ES 93302689T ES 93302689 T ES93302689 T ES 93302689T ES 2083824 T3 ES2083824 T3 ES 2083824T3
Authority
ES
Spain
Prior art keywords
rotor
pump
annulus
internal variable
output condition
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 - Lifetime
Application number
ES93302689T
Other languages
Spanish (es)
Inventor
Steve Hodge
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.)
Concentric Pumps Ltd
Original Assignee
Concentric Pumps 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
Priority claimed from GB929207674A external-priority patent/GB9207674D0/en
Application filed by Concentric Pumps Ltd filed Critical Concentric Pumps Ltd
Application granted granted Critical
Publication of ES2083824T3 publication Critical patent/ES2083824T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Valve Device For Special Equipments (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Vehicle Body Suspensions (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

A variable output pump is of the gerotor type with a multi-lobed rotor meshed internally of an annulus with one extra lobe, the rotor comprising two parts axially arranged end-to-end and one of which is arranged to be phase shifted by relative rotation. After a 180 degree shift (Figure 5) the chambers formed between the rotors and annulus will comprise one axial part between rotor 10 and annulus 16 which is at maximum volume whilst the adjacent and communicating part between rotor 12 and the annulus will be at minimum volume and hence the pump will be in zero output condition. When both rotor parts are phase synchronised the pump is in maximum output condition; it can be turned to any intermediate position. <IMAGE>
ES93302689T 1992-04-08 1993-04-06 INTERNAL VARIABLE EXPENDITURE PUMP. Expired - Lifetime ES2083824T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929207674A GB9207674D0 (en) 1992-04-08 1992-04-08 Improvements relating to pumps
GB929214885A GB9214885D0 (en) 1992-04-08 1992-07-14 Improvements relating to pumps

Publications (1)

Publication Number Publication Date
ES2083824T3 true ES2083824T3 (en) 1996-04-16

Family

ID=26300673

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93302689T Expired - Lifetime ES2083824T3 (en) 1992-04-08 1993-04-06 INTERNAL VARIABLE EXPENDITURE PUMP.

Country Status (11)

Country Link
EP (1) EP0565340B1 (en)
JP (1) JPH06508416A (en)
AT (1) ATE131579T1 (en)
DE (1) DE69300999T2 (en)
DK (1) DK0565340T3 (en)
ES (1) ES2083824T3 (en)
FI (1) FI105283B (en)
GB (1) GB2265946B (en)
GR (1) GR3018911T3 (en)
NO (2) NO934469D0 (en)
WO (1) WO1993021443A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313411B (en) * 1996-05-25 1999-10-13 Concentric Pumps Ltd Improvements in drive systems
DE10222131C5 (en) * 2002-05-17 2011-08-11 Schwäbische Hüttenwerke Automotive GmbH & Co. KG, 73433 Positive displacement pump with delivery volume adjustment
CN100513787C (en) 2004-12-22 2009-07-15 麦格纳动力系有限公司 Variable capacity gerotor pump
GB2430237A (en) * 2005-06-11 2007-03-21 Concentric Pumps Ltd Variable output internal gear pump
GB2436594A (en) * 2006-03-28 2007-10-03 Concentric Vfp Ltd A variable output pump assembly
GB2441773B (en) * 2006-09-15 2011-02-23 Concentric Vfp Ltd Engine Lubricant Pump Control System
GB0620648D0 (en) * 2006-10-18 2006-11-29 Concentric Vfp Ltd Improvements in gerotor pump performance
GB0620646D0 (en) * 2006-10-18 2006-11-29 Concentric Vfp Ltd Pumps with filling slots
GB0625765D0 (en) 2006-12-22 2007-02-07 Concentric Pumps Ltd Pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120324A (en) * 1982-05-13 1983-11-30 Neptune Systems Limited Variable-displacement rotary pump or motor
GB8422755D0 (en) * 1984-09-08 1984-10-10 Concentric Pumps Ltd Oil pumps
GB8706630D0 (en) * 1987-03-20 1987-04-23 Concentric Pumps Ltd Variable output oil pump

Also Published As

Publication number Publication date
GR3018911T3 (en) 1996-05-31
EP0565340B1 (en) 1995-12-13
GB9307074D0 (en) 1993-05-26
WO1993021443A1 (en) 1993-10-28
EP0565340A1 (en) 1993-10-13
FI935470A (en) 1993-12-07
GB2265946A (en) 1993-10-13
ATE131579T1 (en) 1995-12-15
DK0565340T3 (en) 1996-02-19
DE69300999D1 (en) 1996-01-25
GB2265946B (en) 1995-01-18
JPH06508416A (en) 1994-09-22
NO934469L (en) 1993-12-08
NO934469D0 (en) 1993-12-08
DE69300999T2 (en) 1996-05-23
FI935470A0 (en) 1993-12-07
FI105283B (en) 2000-07-14
NO304752B1 (en) 1999-02-08

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