JPH0469286U - - Google Patents

Info

Publication number
JPH0469286U
JPH0469286U JP11149690U JP11149690U JPH0469286U JP H0469286 U JPH0469286 U JP H0469286U JP 11149690 U JP11149690 U JP 11149690U JP 11149690 U JP11149690 U JP 11149690U JP H0469286 U JPH0469286 U JP H0469286U
Authority
JP
Japan
Prior art keywords
reaction
pressure
diameter portion
inlet side
communicates
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
JP11149690U
Other languages
Japanese (ja)
Other versions
JP2547860Y2 (en
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 JP11149690U priority Critical patent/JP2547860Y2/en
Publication of JPH0469286U publication Critical patent/JPH0469286U/ja
Application granted granted Critical
Publication of JP2547860Y2 publication Critical patent/JP2547860Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Steering Control In Accordance With Driving Conditions (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の一実施例に係る反力圧制御弁
の断面図、第2図は第1図の要部を拡大して示す
要部拡大断面図、第3図は車輌速度における動力
舵取装置の供給油入口圧と反力圧との関係を示す
グラフ、第4図は本考案に係る反力圧制御弁と従
来の反力圧制御弁との油圧特性の比較を示すグラ
フ、第5図、第6図はそれぞれ従来の反力圧制御
弁を示す断面図である。 28……室(供給油入口側)、50……環状溝
(開口部)、60……反力プランジヤ、60b…
…大径部、61……連通孔、63……環状溝(縮
径部)、65……面取り部、66……バイパス通
路、70……第1の可変オリフイス、71……第
2の可変オリフイス。
Fig. 1 is a sectional view of a reaction pressure control valve according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, and Fig. 3 is a power at vehicle speed. A graph showing the relationship between the supply oil inlet pressure of the steering device and the reaction pressure; FIG. 4 is a graph showing a comparison of hydraulic characteristics between the reaction pressure control valve according to the present invention and a conventional reaction pressure control valve; FIGS. 5 and 6 are cross-sectional views showing conventional reaction pressure control valves, respectively. 28... Chamber (supplied oil inlet side), 50... Annular groove (opening), 60... Reaction force plunger, 60b...
... Large diameter part, 61 ... Communication hole, 63 ... Annular groove (reduced diameter part), 65 ... Chamfered part, 66 ... Bypass passage, 70 ... First variable orifice, 71 ... Second variable Orifice.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ポンプの吐出口と動力舵取装置の油圧反力室と
を連通する流路に開口するとともに動力舵取装置
の供給油入口側に連通するバルブ孔を形成し、こ
のバルブ孔内に外面に縮径部を有しこれに連通す
る連通孔の穿設された反力プランジヤを摺動可能
に嵌合し、該縮径部と上記開口部とにより形成さ
れたオリフイス上流側の圧油を反力室に導入し、
動力舵取装置への供給油入口側の圧力に応じて該
反力プランジヤを進退動して圧油の一部を上記連
通孔を介してタンクへ還流させる反力圧制御弁に
おいて、上記反力プランジヤ外径部の上記縮径部
より供給油入口側に上記開口部と連通可能な面取
り部を形成し、この開口部と該面取り部とにより
形成された可変オリフイスを介して上記連通孔に
連通するバイパス通路を穿設し、上記供給油入口
側圧の増大時上記オリフイス上流側の圧油の一部
をタンクへ還流させることを特徴とする反力圧制
御弁。
A valve hole is formed that opens into a flow path that communicates the discharge port of the pump and the hydraulic reaction chamber of the power steering device, and also communicates with the supply oil inlet side of the power steering device, and a valve hole is formed in the valve hole that contracts on the outer surface. A reaction force plunger having a diameter portion and a communication hole communicating therewith is slidably fitted, and the pressure oil on the upstream side of the orifice formed by the reduced diameter portion and the opening is applied as a reaction force. introduced into the room,
The reaction pressure control valve moves the reaction plunger forward and backward in accordance with the pressure on the inlet side of oil supplied to the power steering device to return a part of the pressure oil to the tank via the communication hole. A chamfered portion that can communicate with the opening is formed on the supply oil inlet side of the reduced diameter portion of the outer diameter portion of the plunger, and communicates with the communication hole through a variable orifice formed by this opening and the chamfered portion. 1. A reaction pressure control valve, characterized in that a bypass passage is bored therein, and a part of the pressure oil on the upstream side of the orifice is returned to the tank when the supply oil inlet side pressure increases.
JP11149690U 1990-10-24 1990-10-24 Reaction pressure control valve Expired - Lifetime JP2547860Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11149690U JP2547860Y2 (en) 1990-10-24 1990-10-24 Reaction pressure control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11149690U JP2547860Y2 (en) 1990-10-24 1990-10-24 Reaction pressure control valve

Publications (2)

Publication Number Publication Date
JPH0469286U true JPH0469286U (en) 1992-06-18
JP2547860Y2 JP2547860Y2 (en) 1997-09-17

Family

ID=31858958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11149690U Expired - Lifetime JP2547860Y2 (en) 1990-10-24 1990-10-24 Reaction pressure control valve

Country Status (1)

Country Link
JP (1) JP2547860Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230297299A1 (en) * 2022-03-17 2023-09-21 Xerox Corporation Multi-function device communities for troubleshooting and maintenance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230297299A1 (en) * 2022-03-17 2023-09-21 Xerox Corporation Multi-function device communities for troubleshooting and maintenance

Also Published As

Publication number Publication date
JP2547860Y2 (en) 1997-09-17

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