JPH047985U - - Google Patents
Info
- Publication number
- JPH047985U JPH047985U JP4869090U JP4869090U JPH047985U JP H047985 U JPH047985 U JP H047985U JP 4869090 U JP4869090 U JP 4869090U JP 4869090 U JP4869090 U JP 4869090U JP H047985 U JPH047985 U JP H047985U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- spool valve
- power steering
- steering device
- reaction force
- 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.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Steering Control In Accordance With Driving Conditions (AREA)
Description
第１図は本考案の一実施例に係る反力圧制御弁
の要部を拡大して示す要部拡大断面図、第２図、
第３図はそれぞれ上記反力圧制御弁の動作状態を
示す断面図、第４図ａ，ｂはそれぞれ本考案の他
の実施例に係る孔および弾性体を示す断面図、第
５図は反力圧とシリンダ負荷圧との関係を示す特
性線図、第６図は従来の反力圧制御弁を示す断面
図である。
４……バルブ孔、５……ポンプ側通路、７……
シリンダ側通路、１０……ストツパプラグ、１０
ａ……孔、１３……弾性体、２０……スプールバ
ルブ、２６……ストツパ、３０……可変オリフイ
ス。
FIG. 1 is an enlarged cross-sectional view of the main parts of a reaction pressure control valve according to an embodiment of the present invention; FIG.
3 is a sectional view showing the operating state of the reaction pressure control valve, FIGS. 4a and 4b are sectional views showing a hole and an elastic body according to another embodiment of the present invention, and FIG. A characteristic diagram showing the relationship between force pressure and cylinder load pressure, and FIG. 6 is a sectional view showing a conventional reaction pressure control valve. 4... Valve hole, 5... Pump side passage, 7...
Cylinder side passage, 10... Stopper plug, 10
a...hole, 13...elastic body, 20...spool valve, 26...stopper, 30...variable orifice.
Claims (1)
流路に開口するとともに油圧反力部を有する動力
舵取装置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するスプールバルブを
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
応じて該スプールバルブを進退動して圧油の一部
をタンクへ還流させるとともに、このスプールバ
ルブ端面に突設されたストツパと、このストツパ
に当接するバルブ孔端壁とのいずれか一方に弾性
体を設けたことを特徴とする動力舵取装置の反力
圧制御弁。 A valve hole is formed that opens into a flow path that communicates between the discharge port of the vehicle speed pump and the hydraulic reaction chamber, and also communicates with the power steering device having a hydraulic reaction force section, and a diameter-reduced portion is provided on the outer surface of the valve hole. A spool valve having a spool valve is slidably fitted, and the pressure oil on the upstream side of the orifice formed by the reduced diameter part and the opening is introduced into the reaction force chamber, and the pressure oil on the inlet side of the oil supplied to the power steering device is introduced into the reaction force chamber. The spool valve is moved back and forth in accordance with the pressure to return a part of the pressure oil to the tank, and either a stopper protruding from the end face of the spool valve or an end wall of the valve hole abuts the stopper. A reaction pressure control valve for a power steering device, characterized in that an elastic body is provided at the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4869090U JPH047985U (en) | 1990-05-10 | 1990-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4869090U JPH047985U (en) | 1990-05-10 | 1990-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH047985U true JPH047985U (en) | 1992-01-24 |
Family
ID=31565731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4869090U Pending JPH047985U (en) | 1990-05-10 | 1990-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047985U (en) |
-
1990
- 1990-05-10 JP JP4869090U patent/JPH047985U/ja active Pending