JPH0446982U - - Google Patents

Info

Publication number
JPH0446982U
JPH0446982U JP8862790U JP8862790U JPH0446982U JP H0446982 U JPH0446982 U JP H0446982U JP 8862790 U JP8862790 U JP 8862790U JP 8862790 U JP8862790 U JP 8862790U JP H0446982 U JPH0446982 U JP H0446982U
Authority
JP
Japan
Prior art keywords
valve body
casing
restrictors
control valve
hydraulic control
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.)
Granted
Application number
JP8862790U
Other languages
English (en)
Other versions
JP2523170Y2 (ja
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 filed Critical
Priority to JP8862790U priority Critical patent/JP2523170Y2/ja
Priority to US07/739,948 priority patent/US5133384A/en
Priority to FR9110336A priority patent/FR2666132B1/fr
Priority to DE69114215T priority patent/DE69114215T2/de
Priority to KR1019910014071A priority patent/KR950012267B1/ko
Priority to EP19910113610 priority patent/EP0472101B1/en
Publication of JPH0446982U publication Critical patent/JPH0446982U/ja
Priority to US07/920,055 priority patent/US5244012A/en
Application granted granted Critical
Publication of JP2523170Y2 publication Critical patent/JP2523170Y2/ja
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)

Description

【図面の簡単な説明】
第１図は本考案に係る油圧制御弁の模式的横断
面図、第２図はその動作状態を示す図、第３図は
６個の絞り中の２個の絞りの構成態様を示す拡大
断面図、第４図は同じく残りの４個の絞りの構成
態様を示す拡大断面図、第５図は本考案に係る油
圧制御弁における絞り面積の変化態様を示す図、
第６図は従来の油圧制御弁の模式的横断面図、第
７図は動力舵取装置における望ましい操舵補助力
の増加特性を示す図、第８図は面積が変化しない
領域を有する絞りの構成態様を示す図である。 １０……ケーシング、１１……油溝、１２……
弁体、１３……油溝、２ａ〜２ｆ，３ａ〜３ｆ…
…絞り、２０……切欠部、Ｐ……油圧ポンプ、Ｓ
……油圧シリンダ、Ｔ……油タンク。

Claims (1)

  1. 【実用新案登録請求の範囲】 ６本の油溝をその外周に等配してある円形断面
    の弁体を、６本の油溝をその内周に等配してある
    筒形のケーシングに内嵌し、各油溝の両側に絞り
    を構成して、夫々６個の絞りからなる一対の絞り
    部を設けてなり、これらを相異なる２つの送給先
    と油圧の供給源及び排出先との間に夫々介在させ
    て用いられ、弁体とケーシングとの間の相対角変
    位に応じて前記両絞り部に生じる絞り面積の変化
    により前記送給先への送給油圧を制御する油圧制
    御弁において、 前記一対の絞り部を構成する各６個の絞りの内
    、半径方向に夫々対向する位置にある２個の絞り
    が、前記相対角変位が所定の大きさに達するまで
    の間の同一範囲に、その絞り面積が実質的に変化
    しない領域を有するようになしてあることを特徴
    とする油圧制御弁。
JP8862790U 1990-08-23 1990-08-23 油圧制御弁 Expired - Lifetime JP2523170Y2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP8862790U JP2523170Y2 (ja) 1990-08-23 1990-08-23 油圧制御弁
US07/739,948 US5133384A (en) 1990-08-23 1991-08-02 Hydraulic pressure control valve
DE69114215T DE69114215T2 (de) 1990-08-23 1991-08-14 Hydraulisches Druckregelventil.
KR1019910014071A KR950012267B1 (ko) 1990-08-23 1991-08-14 유압 제어 밸브
FR9110336A FR2666132B1 (fr) 1990-08-23 1991-08-14 Distributeur de pression hydraulique.
EP19910113610 EP0472101B1 (en) 1990-08-23 1991-08-14 Hydraulic pressure control valve
US07/920,055 US5244012A (en) 1990-08-23 1992-07-27 Hydraulic pressure control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8862790U JP2523170Y2 (ja) 1990-08-23 1990-08-23 油圧制御弁

Publications (2)

Publication Number Publication Date
JPH0446982U true JPH0446982U (ja) 1992-04-21
JP2523170Y2 JP2523170Y2 (ja) 1997-01-22

Family

ID=13948044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8862790U Expired - Lifetime JP2523170Y2 (ja) 1990-08-23 1990-08-23 油圧制御弁

Country Status (6)

Country Link
US (1) US5133384A (ja)
EP (1) EP0472101B1 (ja)
JP (1) JP2523170Y2 (ja)
KR (1) KR950012267B1 (ja)
DE (1) DE69114215T2 (ja)
FR (1) FR2666132B1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5458153A (en) * 1992-01-16 1995-10-17 A. E. Bishop & Associates Pty. Limited Rotary valve for hydraulic power steering with reduced noise and linear boost characteristic
US5259413A (en) * 1992-08-27 1993-11-09 Trw Inc. Steering control valve with contoured control surfaces
US5207244A (en) * 1992-09-21 1993-05-04 Trw Inc. Steering control valve with contoured control surfaces
EP0594137B1 (en) * 1992-10-22 1998-07-29 Toyoda Koki Kabushiki Kaisha Hydraulic power steering apparatus
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
US5799693A (en) * 1996-12-09 1998-09-01 Trw Inc. Power steering control valve with noise reduction
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
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
JP3687499B2 (ja) * 2000-06-30 2005-08-24 豊田工機株式会社 流量制御弁
US6499507B1 (en) 2000-09-12 2002-12-31 Ford Global Technologies, Inc. Rotary valve
DE202005007092U1 (de) * 2005-05-03 2005-08-11 Trw Automotive Gmbh Drehschieberventil, insbesondere für hydraulische Hilfskraftlenkungen bei Kraftfahrzeugen
DE102006056350A1 (de) * 2006-11-29 2008-06-05 Trw Automotive Gmbh Servoventil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142756A (en) * 1980-04-01 1981-11-07 Toyoda Mach Works Ltd Servo valve
JPS6194870A (ja) * 1984-10-17 1986-05-13 Atsugi Motor Parts Co Ltd ロ−タリ弁型動力操向装置
JPH01240370A (ja) * 1988-03-18 1989-09-25 Koyo Seiko Co Ltd 油圧制御弁

Family Cites Families (4)

* 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
US4460016A (en) * 1980-05-30 1984-07-17 Toyoda Koki Kabushiki Kaisha Rotary servovalve
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
US4924910A (en) * 1988-04-12 1990-05-15 Koyo Seiko Co., Ltd. Hydraulic pressure control valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142756A (en) * 1980-04-01 1981-11-07 Toyoda Mach Works Ltd Servo valve
JPS6194870A (ja) * 1984-10-17 1986-05-13 Atsugi Motor Parts Co Ltd ロ−タリ弁型動力操向装置
JPH01240370A (ja) * 1988-03-18 1989-09-25 Koyo Seiko Co Ltd 油圧制御弁

Also Published As

Publication number Publication date
DE69114215D1 (de) 1995-12-07
EP0472101B1 (en) 1995-11-02
FR2666132A1 (fr) 1992-02-28
DE69114215T2 (de) 1996-06-20
JP2523170Y2 (ja) 1997-01-22
KR950012267B1 (ko) 1995-10-16
US5133384A (en) 1992-07-28
EP0472101A1 (en) 1992-02-26
FR2666132B1 (fr) 1993-02-19

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term