GB9109937D0 - Gerotor pumps - Google Patents

Gerotor pumps

Info

Publication number
GB9109937D0
GB9109937D0 GB919109937A GB9109937A GB9109937D0 GB 9109937 D0 GB9109937 D0 GB 9109937D0 GB 919109937 A GB919109937 A GB 919109937A GB 9109937 A GB9109937 A GB 9109937A GB 9109937 D0 GB9109937 D0 GB 9109937D0
Authority
GB
United Kingdom
Prior art keywords
lobes
gerotor pumps
lobed
meshed
image
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
GB919109937A
Other versions
GB2243875B (en
GB2243875A (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.)
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
Application filed by Concentric Pumps Ltd filed Critical Concentric Pumps Ltd
Publication of GB9109937D0 publication Critical patent/GB9109937D0/en
Publication of GB2243875A publication Critical patent/GB2243875A/en
Application granted granted Critical
Publication of GB2243875B publication Critical patent/GB2243875B/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)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Fats And Perfumes (AREA)
  • Materials For Medical Uses (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Semiconductor Lasers (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Supercharger (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

A gerotor pump, Figure 1, has the usual male lobed rotor 16 with n lobes meshed in the female lobed annulus 12 with n + 1 lobes, the two being both but relatively rotatable on parallel axes 14,18. The improvement consists of making the lobes helically extending which smooths pressure peaks and reduces noise. <IMAGE>
GB9109937A 1990-05-12 1991-05-08 Gerotor pumps Expired - Fee Related GB2243875B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909010686A GB9010686D0 (en) 1990-05-12 1990-05-12 Gerotor pumps

Publications (3)

Publication Number Publication Date
GB9109937D0 true GB9109937D0 (en) 1991-07-03
GB2243875A GB2243875A (en) 1991-11-13
GB2243875B GB2243875B (en) 1994-01-05

Family

ID=10675892

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909010686A Pending GB9010686D0 (en) 1990-05-12 1990-05-12 Gerotor pumps
GB9109937A Expired - Fee Related GB2243875B (en) 1990-05-12 1991-05-08 Gerotor pumps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909010686A Pending GB9010686D0 (en) 1990-05-12 1990-05-12 Gerotor pumps

Country Status (9)

Country Link
EP (1) EP0457491B1 (en)
JP (1) JPH07151068A (en)
AT (1) ATE108519T1 (en)
DE (1) DE69102818T2 (en)
DK (1) DK0457491T3 (en)
ES (1) ES2060302T3 (en)
FI (1) FI103603B (en)
GB (2) GB9010686D0 (en)
NO (1) NO176452C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040965A1 (en) * 2000-08-22 2002-03-28 Schwaebische Huettenwerke Gmbh Tooth pump with helical teeth
MY141586A (en) * 2002-07-18 2010-05-14 Mitsubishi Materials Pmg Corp Oil pump rotor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397139A (en) * 1941-06-05 1946-03-26 Herman C Heaton Rotary helical fluid unit
US2830542A (en) * 1953-06-22 1958-04-15 Gen Motors Corp Fluid pump
DE2720130C3 (en) * 1977-05-05 1980-03-06 Christensen, Inc., Salt Lake City, Utah (V.St.A.) Chisel direct drive for deep drilling tools
GB2022708A (en) * 1978-06-09 1979-12-19 Beck A J Rotary positive-displacement fluid-machines
PL211931A1 (en) * 1978-12-18 1980-07-14 Os Bad Rozwojowy Mech
US4424013A (en) * 1981-01-19 1984-01-03 Bauman Richard H Energized-fluid machine
JPS5982594A (en) * 1982-10-29 1984-05-12 Sumitomo Electric Ind Ltd Rotary pump
SU1192432A1 (en) * 1984-07-19 1989-07-07 Inst Burovoi Tekhnik Mounting device for oriented assembly of working members of screw-type downhole engine, method of tuning the engine and assembly method
EP0302877B1 (en) * 1986-04-23 1991-12-04 Svenska Rotor Maskiner Ab Rotary positive displacement machine for a compressible working fluid
JPH0756268B2 (en) * 1987-07-27 1995-06-14 株式会社ユニシアジェックス Oil pump

Also Published As

Publication number Publication date
GB2243875B (en) 1994-01-05
JPH07151068A (en) 1995-06-13
ATE108519T1 (en) 1994-07-15
NO176452C (en) 1995-04-05
FI103603B1 (en) 1999-07-30
NO911816D0 (en) 1991-05-10
DE69102818D1 (en) 1994-08-18
FI912283A (en) 1991-11-13
ES2060302T3 (en) 1994-11-16
EP0457491B1 (en) 1994-07-13
NO911816L (en) 1991-11-13
EP0457491A1 (en) 1991-11-21
NO176452B (en) 1994-12-27
DE69102818T2 (en) 1994-11-24
GB9010686D0 (en) 1990-07-04
DK0457491T3 (en) 1994-10-31
FI103603B (en) 1999-07-30
GB2243875A (en) 1991-11-13
FI912283A0 (en) 1991-05-10

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Legal Events

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

Effective date: 20010508