NO304752B1 - Improvements to pumps - Google Patents

Improvements to pumps

Info

Publication number
NO304752B1
NO304752B1 NO934469A NO934469A NO304752B1 NO 304752 B1 NO304752 B1 NO 304752B1 NO 934469 A NO934469 A NO 934469A NO 934469 A NO934469 A NO 934469A NO 304752 B1 NO304752 B1 NO 304752B1
Authority
NO
Norway
Prior art keywords
rotor
annulus
pump
output condition
parts
Prior art date
Application number
NO934469A
Other languages
Norwegian (no)
Other versions
NO934469L (en
Inventor
Steve Hodge
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
Publication of NO934469L publication Critical patent/NO934469L/en
Publication of NO304752B1 publication Critical patent/NO304752B1/en

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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (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>
NO934469A 1992-04-08 1993-12-08 Improvements to pumps NO304752B1 (en)

Applications Claiming Priority (3)

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
PCT/GB1993/000720 WO1993021443A1 (en) 1992-04-08 1993-04-06 Variable output internal pump

Publications (2)

Publication Number Publication Date
NO934469L NO934469L (en) 1993-12-08
NO304752B1 true NO304752B1 (en) 1999-02-08

Family

ID=26300673

Family Applications (2)

Application Number Title Priority Date Filing Date
NO934469D NO934469D0 (en) 1992-04-08 1993-12-08 Improvement by pumps
NO934469A NO304752B1 (en) 1992-04-08 1993-12-08 Improvements to pumps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO934469D NO934469D0 (en) 1992-04-08 1993-12-08 Improvement by pumps

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
EP1828607A4 (en) 2004-12-22 2012-12-19 Magna Powertrain Usa Inc 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
GB0620646D0 (en) * 2006-10-18 2006-11-29 Concentric Vfp Ltd Pumps with filling slots
GB0620648D0 (en) * 2006-10-18 2006-11-29 Concentric Vfp Ltd Improvements in gerotor pump performance
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
GB2265946B (en) 1995-01-18
NO934469D0 (en) 1993-12-08
GB9307074D0 (en) 1993-05-26
FI935470A0 (en) 1993-12-07
DK0565340T3 (en) 1996-02-19
FI105283B (en) 2000-07-14
FI935470A (en) 1993-12-07
ATE131579T1 (en) 1995-12-15
JPH06508416A (en) 1994-09-22
GR3018911T3 (en) 1996-05-31
WO1993021443A1 (en) 1993-10-28
ES2083824T3 (en) 1996-04-16
NO934469L (en) 1993-12-08
DE69300999T2 (en) 1996-05-23
GB2265946A (en) 1993-10-13
EP0565340B1 (en) 1995-12-13
EP0565340A1 (en) 1993-10-13
DE69300999D1 (en) 1996-01-25

Similar Documents

Publication Publication Date Title
US3680989A (en) Hydraulic pump or motor
EP0116217B1 (en) Two-speed gerotor motor
NO304752B1 (en) Improvements to pumps
CA2396910A1 (en) A screw compressor injected with water
CA2292366A1 (en) Scroll-type compressor
RU2006117358A (en) GEAR PUMP
US3288078A (en) Hydraulic device
ATE76937T1 (en) ROTATING VALVE PLATE.
KR880001927A (en) Vane Pump
JP2001193667A (en) Gear
NO177326C (en) Internal gear pump with two holes and a common drive
CA2299028A1 (en) Countershaft transmission
JPH03281995A (en) Vane pump
ES2075786A2 (en) Rotary engine
RU98116827A (en) DEVICE FOR CREATING HYDRAULIC PRESSURE PULSES
GB2018897A (en) Rotary positive-displacement pumps
JPS56107902A (en) Rotary piston engine pump
EP1279834A3 (en) Vane pump
DE69628046D1 (en) LIQUID SWING engine / pump
RU2002108281A (en) Turbomachine Multiplier
RU93034350A (en) ROTOR COMPRESSOR
RU93019095A (en) ROTOR MACHINE
KR940021933A (en) Rotor of oil pump with increased oil discharge
JPS56165786A (en) Squeeze-up fluidic pump
JPS5621969A (en) Pumping apparatus for power steering

Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN OCTOBER 2001