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GB1378682A - Hydraulic vane pumps - Google Patents

Hydraulic vane pumps

Info

Publication number
GB1378682A
GB1378682A GB722172A GB722172A GB1378682A GB 1378682 A GB1378682 A GB 1378682A GB 722172 A GB722172 A GB 722172A GB 722172 A GB722172 A GB 722172A GB 1378682 A GB1378682 A GB 1378682A
Authority
GB
United Kingdom
Prior art keywords
angle
feb
reduce noise
adjacent vanes
subtended
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
Application number
GB722172A
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.)
Tokyo Keiki Inc
Original Assignee
Tokyo Keiki Co 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 Tokyo Keiki Co Ltd filed Critical Tokyo Keiki Co Ltd
Publication of GB1378682A publication Critical patent/GB1378682A/en
Expired 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

1378682 Rotary positive-displacement machines TOKYO KEIKI KK 16 Feb 1972 [19 Feb 1971(2)] 7221/72 Heading F1F In an hydraulic sliding-vane pump the angle subtended at the axis O of the rotor 3 by each of circular arcs C, D; D<SP>1</SP>, C<SP>1</SP>; F, E; E<SP>1</SP>, F<SP>1</SP> comprised in the profile of the inner surface 1a of a cam ring 1 is smaller than the angle between adjacent vanes 2. This provision in comparison with a similar known pump Fig.1 (not shown) is said to reduce noise due to sudden pressure changes in the intervane spaces, the angles subtended by the corresponding arcs in the known pump being the same as the angle between adjacent vanes. Grooves 6 are formed next to outlets 7 to further reduce noise.
GB722172A 1971-02-19 1972-02-16 Hydraulic vane pumps Expired GB1378682A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP822671 1971-02-19
JP822571 1971-02-19

Publications (1)

Publication Number Publication Date
GB1378682A true GB1378682A (en) 1974-12-27

Family

ID=26342695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB722172A Expired GB1378682A (en) 1971-02-19 1972-02-16 Hydraulic vane pumps

Country Status (2)

Country Link
DE (1) DE2207671A1 (en)
GB (1) GB1378682A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49132604A (en) * 1973-04-04 1974-12-19
EP4394182A4 (en) * 2021-08-25 2024-12-11 Isao Hayase Constant flow rate/non-pulsating rotary vane-type positive displacement machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822102A1 (en) * 1978-05-20 1979-11-22 Teves Gmbh Alfred ROTATING VANE MACHINE
EP0151983B1 (en) * 1984-02-01 1990-09-26 Toyoda Koki Kabushiki Kaisha Vane pump
DE19707119C1 (en) * 1997-02-22 1998-08-13 Zahnradfabrik Friedrichshafen High pressure pump
DE10037468A1 (en) * 2000-08-01 2002-02-14 Siemens Ag Control disc especially for a vane pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49132604A (en) * 1973-04-04 1974-12-19
EP4394182A4 (en) * 2021-08-25 2024-12-11 Isao Hayase Constant flow rate/non-pulsating rotary vane-type positive displacement machine

Also Published As

Publication number Publication date
DE2207671A1 (en) 1972-08-24

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years