DE68903863D1 - Hydraulisches druckkontrollventil. - Google Patents

Hydraulisches druckkontrollventil.

Info

Publication number
DE68903863D1
DE68903863D1 DE1989603863 DE68903863A DE68903863D1 DE 68903863 D1 DE68903863 D1 DE 68903863D1 DE 1989603863 DE1989603863 DE 1989603863 DE 68903863 A DE68903863 A DE 68903863A DE 68903863 D1 DE68903863 D1 DE 68903863D1
Authority
DE
Germany
Prior art keywords
control valve
hydraulic pressure
pressure control
hydraulic
valve
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 - Lifetime
Application number
DE1989603863
Other languages
English (en)
Other versions
DE68903863T2 (de
DE68903863T4 (de
Inventor
Ltd Tabata
Ltd Ooishi
Ltd Takaoka
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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko 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
Priority claimed from JP4886388U external-priority patent/JPH01154973U/ja
Priority claimed from JP1988106281U external-priority patent/JP2523985Y2/ja
Application filed by Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Publication of DE68903863D1 publication Critical patent/DE68903863D1/de
Application granted granted Critical
Publication of DE68903863T4 publication Critical patent/DE68903863T4/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves
    • B62D5/0837—Rotary valves characterised by the shape of the control edges, e.g. to reduce noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86654—For plural lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
DE68903863A 1988-04-12 1989-04-11 Hydraulisches Druckkontrollventil. Expired - Lifetime DE68903863T4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4886388U JPH01154973U (de) 1988-04-12 1988-04-12
JP1988106281U JP2523985Y2 (ja) 1988-08-10 1988-08-10 油圧制御弁

Publications (2)

Publication Number Publication Date
DE68903863D1 true DE68903863D1 (de) 1993-01-28
DE68903863T4 DE68903863T4 (de) 1995-03-30

Family

ID=26389198

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8989303555T Expired - Lifetime DE68903863T2 (de) 1988-04-12 1989-04-11 Hydraulisches druckkontrollventil.
DE68903863A Expired - Lifetime DE68903863T4 (de) 1988-04-12 1989-04-11 Hydraulisches Druckkontrollventil.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8989303555T Expired - Lifetime DE68903863T2 (de) 1988-04-12 1989-04-11 Hydraulisches druckkontrollventil.

Country Status (3)

Country Link
US (1) US4924910A (de)
EP (1) EP0337723B1 (de)
DE (2) DE68903863T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249503A (en) * 1990-01-05 1993-10-05 William J. Weinstock Variable ratio reaction valve
US5244012A (en) * 1990-08-23 1993-09-14 Koyo Seiko Co., Ltd. Hydraulic pressure control valve
JP2523170Y2 (ja) * 1990-08-23 1997-01-22 光洋精工株式会社 油圧制御弁
US5249420A (en) * 1991-05-10 1993-10-05 Techco Corporation Control valve for bootstrap hydraulic systems
US5353593A (en) * 1991-05-10 1994-10-11 Techco Corporation Bootstrap hydraulic systems
EP0620790A1 (de) * 1992-01-16 1994-10-26 A.E. BISHOP & ASSOCIATES PTY. LTD. Drehschieberventil für eine hydraulische servolenkung mit verringertem geräusch und linearer verstärkungscharakteristik
US5273072A (en) * 1992-02-24 1993-12-28 Techco Corporation Flow passages for control valves
WO1993017245A1 (en) * 1992-02-25 1993-09-02 Techco Corporation Control valves having parasitic leakage orifices
US5269215A (en) * 1992-02-25 1993-12-14 Techco Corporation Control valves having parasitic leakage orifices
US5259413A (en) * 1992-08-27 1993-11-09 Trw Inc. Steering control valve with contoured control surfaces
US5255715A (en) * 1992-09-16 1993-10-26 Techco Corporation Control valve having parallel diversionary slots interconnected by flow selective control orifices
US5207244A (en) * 1992-09-21 1993-05-04 Trw Inc. Steering control valve with contoured control surfaces
US5549504A (en) * 1992-10-23 1996-08-27 A. E. Bishop & Associates Pty Limited Manufacture of rotary valves
AU695874B2 (en) * 1994-12-26 1998-08-27 Koyo Seiko Co., Ltd. Hydraulic pressure control valve
US5562124A (en) * 1995-02-21 1996-10-08 Trw Inc. Steering control valve with different size flow gaps for noise suppression
JPH11504882A (ja) * 1995-05-05 1999-05-11 ビショップ ステアリング プロプライエタリー リミテッド パワーステアリングギヤバルブ
DE19542200C2 (de) * 1995-11-13 2000-04-27 Daimler Chrysler Ag Servoventil
JP3681875B2 (ja) * 1997-10-16 2005-08-10 カヤバ工業株式会社 パワーステアリングシステム
US6499507B1 (en) 2000-09-12 2002-12-31 Ford Global Technologies, Inc. Rotary valve
CN100360364C (zh) * 2002-05-03 2008-01-09 Trw汽车美国有限责任公司 动力转向控制阀
US7152627B2 (en) * 2004-04-05 2006-12-26 R. H. Sheppard Co., Inc. Control valve for a hydraulic power steering system
CN112747137B (zh) * 2021-01-08 2024-05-31 涌镇液压机械（上海）有限公司 用于提高通过流量的阀芯结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591136A (en) * 1969-02-26 1971-07-06 Arthur E Bishop Rotary valve with curved valve slot
JPS59118577A (ja) * 1982-12-27 1984-07-09 Koyo Jidoki Kk パワーステアリング装置の回転制御弁のスプール弁
ES8500829A1 (es) * 1983-11-18 1984-11-01 Bendiberica Sa Perfeccionamientos en distribuidores hidraulicos para servomecanismos
AU568946B2 (en) * 1984-08-08 1988-01-14 Bishop Steering Technology Limited Power steering control valve
US5267588A (en) * 1985-03-26 1993-12-07 Bishop Arthur E Rotary valve

Also Published As

Publication number Publication date
US4924910A (en) 1990-05-15
EP0337723B1 (de) 1992-12-16
DE68903863T2 (de) 1993-06-09
EP0337723A1 (de) 1989-10-18
DE68903863T4 (de) 1995-03-30

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Legal Events

Date Code Title Description
8380 Miscellaneous part iii
8364 No opposition during term of opposition
8380 Miscellaneous part iii

Free format text: IM HEFT 47/93, SEITE 14137, SP.1: DIE VEROEFFENTLICHUNG IST ZU STREICHEN DER ANMELDER LAUTET RICHTIG: KOYO SEIKO CO., LTD., OSAKO, JP