FI103603B1 - excentre - Google Patents

excentre

Info

Publication number
FI103603B1
FI103603B1 FI912283A FI912283A FI103603B1 FI 103603 B1 FI103603 B1 FI 103603B1 FI 912283 A FI912283 A FI 912283A FI 912283 A FI912283 A FI 912283A FI 103603 B1 FI103603 B1 FI 103603B1
Authority
FI
Finland
Prior art keywords
lobes
lobed
excentre
meshed
image
Prior art date
Application number
FI912283A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI912283A (en
FI912283A0 (en
FI103603B (en
Inventor
Richard Robert Freeman
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 FI912283A0 publication Critical patent/FI912283A0/en
Publication of FI912283A publication Critical patent/FI912283A/en
Application granted granted Critical
Publication of FI103603B1 publication Critical patent/FI103603B1/en
Publication of FI103603B publication Critical patent/FI103603B/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
    • 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)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Materials For Medical Uses (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Semiconductor Lasers (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Supercharger (AREA)
  • Applications Or Details Of Rotary Compressors (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>
FI912283A 1990-05-12 1991-05-10 an eccentric FI103603B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9010686 1990-05-12
GB909010686A GB9010686D0 (en) 1990-05-12 1990-05-12 Gerotor pumps

Publications (4)

Publication Number Publication Date
FI912283A0 FI912283A0 (en) 1991-05-10
FI912283A FI912283A (en) 1991-11-13
FI103603B1 true FI103603B1 (en) 1999-07-30
FI103603B FI103603B (en) 1999-07-30

Family

ID=10675892

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912283A FI103603B (en) 1990-05-12 1991-05-10 an eccentric

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
ATE70110T1 (en) * 1986-04-23 1991-12-15 Svenska Rotor Maskiner Ab POSITIVE ROTARY DISPLACEMENT MACHINE FOR A COMPRESSABLE 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
NO176452B (en) 1994-12-27
FI912283A (en) 1991-11-13
DE69102818T2 (en) 1994-11-24
EP0457491B1 (en) 1994-07-13
DK0457491T3 (en) 1994-10-31
GB9010686D0 (en) 1990-07-04
NO911816L (en) 1991-11-13
GB9109937D0 (en) 1991-07-03
NO176452C (en) 1995-04-05
JPH07151068A (en) 1995-06-13
EP0457491A1 (en) 1991-11-21
ATE108519T1 (en) 1994-07-15
ES2060302T3 (en) 1994-11-16
GB2243875A (en) 1991-11-13
DE69102818D1 (en) 1994-08-18
FI912283A0 (en) 1991-05-10
NO911816D0 (en) 1991-05-10
FI103603B (en) 1999-07-30
GB2243875B (en) 1994-01-05

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