GB1459161A - Rotary-vane pump - Google Patents

Rotary-vane pump

Info

Publication number
GB1459161A
GB1459161A GB208875A GB208875A GB1459161A GB 1459161 A GB1459161 A GB 1459161A GB 208875 A GB208875 A GB 208875A GB 208875 A GB208875 A GB 208875A GB 1459161 A GB1459161 A GB 1459161A
Authority
GB
United Kingdom
Prior art keywords
insert
port
jan
pressure
determines
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
GB208875A
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB1459161A publication Critical patent/GB1459161A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/02—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to vehicle speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

1459161 Rotary Vane Pumps ZAHNRADFABRIK FRIEDRICHSHAFEN AG 17 Jan 1975 [17 Jan 1974] 2088/75 Heading F1F To control the discharge characteristics over a range of speeds, a rotary vane pump has a cylindrical insert 16 disposed transversely in a passage 13 leading to a by-pass valve 14 from a discharge chamber 10. Pump discharge is through a port 17 in the insert 16 to a line 20 and via another throttle (not shown) a reduced pressure is transmitted through a line 19 to the downstream side of by-pass valve 14. The angular orientation of the port 17 relative to the flow of fluid into the passage section throttled by the insert 16 determines the static pressure at which fluid is discharged through port 17 because the throttling effect of the insert 16 results in differing pressure fields across it and thus determines the pressure difference across the valve 14.
GB208875A 1974-01-17 1975-01-17 Rotary-vane pump Expired GB1459161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742402017 DE2402017C2 (en) 1974-01-17 1974-01-17 Flow control device for a rotary piston pump, in particular for power steering of motor vehicles

Publications (1)

Publication Number Publication Date
GB1459161A true GB1459161A (en) 1976-12-22

Family

ID=5904942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB208875A Expired GB1459161A (en) 1974-01-17 1975-01-17 Rotary-vane pump

Country Status (7)

Country Link
JP (1) JPS5828144B2 (en)
BR (1) BR7500362A (en)
DE (1) DE2402017C2 (en)
FR (1) FR2258543B1 (en)
GB (1) GB1459161A (en)
IT (1) IT1026376B (en)
SE (1) SE403995B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108126A1 (en) * 1990-03-14 1991-10-02 Atsugi Unisia Corp ROTATING LEAF CELL PUMP
US5236315A (en) * 1990-06-11 1993-08-17 Atsugi Unisia Corporation Hydraulic pump for power-assisted steering system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421462A (en) * 1979-12-10 1983-12-20 Jidosha Kiki Co., Ltd. Variable displacement pump of vane type
DE3211948C2 (en) * 1982-03-31 1984-07-26 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Control device for a positive displacement pump, in particular a vane pump
DE3581739D1 (en) * 1984-08-11 1991-03-14 Zahnradfabrik Friedrichshafen CURRENT CONTROL DEVICE FOR A ROTATIONAL PISTON PUMP.
DE4209839A1 (en) * 1992-03-26 1993-09-30 Zahnradfabrik Friedrichshafen Flow control valve for vehicle steering system - has control edge with positively and negatively chamfered areas to reduce noise emission.
DE19717794C2 (en) * 1997-04-26 1999-06-17 Zahnradfabrik Friedrichshafen Positive displacement pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1251156B (en) * 1967-09-28 General Motors Corporation, Detroit, Mich (V St A) Pressure line and overflow device in a pump system, especially for power steering
US3426785A (en) * 1966-12-01 1969-02-11 Chrysler Corp Power steering flow control device
US3374749A (en) * 1967-01-03 1968-03-26 Chrysler Corp Porting for balanced hydraulic roller pump
DE1675469A1 (en) * 1968-01-17 1970-05-14 Bosch Gmbh Robert Flow control valve
DE2001614C3 (en) * 1970-01-15 1980-06-12 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Flow control device for a hydraulic pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108126A1 (en) * 1990-03-14 1991-10-02 Atsugi Unisia Corp ROTATING LEAF CELL PUMP
US5209648A (en) * 1990-03-14 1993-05-11 Atsugi Unisia Corporation Rotary-vane pump
US5236315A (en) * 1990-06-11 1993-08-17 Atsugi Unisia Corporation Hydraulic pump for power-assisted steering system

Also Published As

Publication number Publication date
DE2402017A1 (en) 1975-07-31
JPS5828144B2 (en) 1983-06-14
IT1026376B (en) 1978-09-20
JPS50124327A (en) 1975-09-30
DE2402017C2 (en) 1983-03-31
FR2258543B1 (en) 1980-03-14
BR7500362A (en) 1975-11-04
SE403995B (en) 1978-09-18
FR2258543A1 (en) 1975-08-18
SE7500418L (en) 1975-07-18

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Legal Events

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

Effective date: 19930117