DE69713723T2 - Steuerventil für eine Servolenkung mit Gegendruck - Google Patents

Steuerventil für eine Servolenkung mit Gegendruck

Info

Publication number
DE69713723T2
DE69713723T2 DE69713723T DE69713723T DE69713723T2 DE 69713723 T2 DE69713723 T2 DE 69713723T2 DE 69713723 T DE69713723 T DE 69713723T DE 69713723 T DE69713723 T DE 69713723T DE 69713723 T2 DE69713723 T2 DE 69713723T2
Authority
DE
Germany
Prior art keywords
control valve
back pressure
power steering
steering
power
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
DE69713723T
Other languages
English (en)
Other versions
DE69713723D1 (de
Inventor
Daniel J Strong
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of DE69713723D1 publication Critical patent/DE69713723D1/de
Application granted granted Critical
Publication of DE69713723T2 publication Critical patent/DE69713723T2/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)
DE69713723T 1996-12-09 1997-12-09 Steuerventil für eine Servolenkung mit Gegendruck Expired - Lifetime DE69713723T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/762,605 US5794507A (en) 1996-12-09 1996-12-09 Power steering control valve with back pressure

Publications (2)

Publication Number Publication Date
DE69713723D1 DE69713723D1 (de) 2002-08-08
DE69713723T2 true DE69713723T2 (de) 2003-03-13

Family

ID=25065552

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69713723T Expired - Lifetime DE69713723T2 (de) 1996-12-09 1997-12-09 Steuerventil für eine Servolenkung mit Gegendruck

Country Status (6)

Country Link
US (1) US5794507A (de)
EP (1) EP0846609B1 (de)
JP (1) JP3004956B2 (de)
AU (1) AU696873B2 (de)
DE (1) DE69713723T2 (de)
ES (1) ES2179258T3 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082403A (en) * 1998-04-09 2000-07-04 Trw Inc. Power steering control valve with back pressure
JP3912905B2 (ja) * 1998-07-10 2007-05-09 株式会社ショーワ 油圧式パワーステアリング装置
JP2000159130A (ja) 1998-11-30 2000-06-13 Koyo Seiko Co Ltd 油圧制御弁及びこれを用いた動力舵取装置
US6240961B1 (en) * 2000-03-09 2001-06-05 Trw Inc. Hydraulic power steering control valve
ATE213759T1 (de) * 2000-05-30 2002-03-15 Ilford Imaging Ch Gmbh Azofarbstoffe, deren herstellung und verwendung
US6499507B1 (en) * 2000-09-12 2002-12-31 Ford Global Technologies, Inc. Rotary valve
AU2003265212A1 (en) * 2002-05-03 2003-11-17 Trw Automotive U.S. Llc Power steering control valve
US7152627B2 (en) * 2004-04-05 2006-12-26 R. H. Sheppard Co., Inc. Control valve for a hydraulic power steering system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344829A (en) * 1970-05-18 1974-01-23 Alford Alder Engs Ltd Servo valves
GB2042442B (en) * 1979-01-26 1983-02-02 Bishop A Power steering valve
ES8204510A1 (es) * 1981-05-26 1982-04-01 Bendiberica Sa Perfeccionamientos en distribuidores hidraulicos rotativos
JPS6015265A (ja) * 1983-07-04 1985-01-25 Toyoda Mach Works Ltd サ−ボバルブ
US4860635A (en) * 1986-05-12 1989-08-29 Nissan Motor Co., Ltd. Steering control valve for variable power assist steering system
JP2529679B2 (ja) * 1987-01-30 1996-08-28 日産自動車株式会社 パワ−ステアリングの油圧制御装置
US5244012A (en) * 1990-08-23 1993-09-14 Koyo Seiko Co., Ltd. Hydraulic pressure control valve
JPH081376B2 (ja) * 1991-10-28 1996-01-10 エイ イー ビショップ アンド アソシエイツ プロプライエタリー リミテッド 液圧動力かじ取り装置用弁の製造に使用する装置
JP2719861B2 (ja) * 1991-12-13 1998-02-25 自動車機器株式会社 流体制御弁装置
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
US5207244A (en) * 1992-09-21 1993-05-04 Trw Inc. Steering control valve with contoured control surfaces
US5417244A (en) * 1994-02-07 1995-05-23 Trw Inc. Valve with noise reducing two stage pressure drop
US5562124A (en) * 1995-02-21 1996-10-08 Trw Inc. Steering control valve with different size flow gaps for noise suppression
US5582207A (en) * 1995-03-14 1996-12-10 Trw Inc. Steering control valve with flow gaps which change relative size for noise suppression

Also Published As

Publication number Publication date
AU4691397A (en) 1998-06-11
EP0846609A3 (de) 1998-11-18
US5794507A (en) 1998-08-18
JPH10203388A (ja) 1998-08-04
AU696873B2 (en) 1998-09-17
EP0846609B1 (de) 2002-07-03
EP0846609A2 (de) 1998-06-10
DE69713723D1 (de) 2002-08-08
ES2179258T3 (es) 2003-01-16
JP3004956B2 (ja) 2000-01-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition