JPH01168363U - - Google Patents
Info
- Publication number
- JPH01168363U JPH01168363U JP6640888U JP6640888U JPH01168363U JP H01168363 U JPH01168363 U JP H01168363U JP 6640888 U JP6640888 U JP 6640888U JP 6640888 U JP6640888 U JP 6640888U JP H01168363 U JPH01168363 U JP H01168363U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- power steering
- steering device
- working chamber
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案装置の一実施例に係る回転形制
御弁の一方の弁ロータを他方の弁スリーブとの関
係で示す平面図、第２図はこの弁ロータと弁スリ
ーブとの組付状態を示す縦断面図、第３図乃至第
６図はそれぞれ異なる作動状態を示す第１図、第
２図相当図、第７図は従来装置における入力トル
クと出力トルクの関係を示すグラフ、第８図は本
考案装置における入力トルクと出力トルクの関係
を示すグラフ、第９図は本考案装置の他の実施例
を示す第１図相当図、第１０図は従来の動力舵取
装置の全体構成を示す縦断面図である。
１……回転形制御弁、２……弁ロータ、３……
第１溝、４……第２溝、５……弁スリーブ、７…
…第１凹入部、８……第２凹入部、９，１０ａ，
１０ｂ……第３溝、２０……シリンダ、２０ａ…
…一方の作動室、２０ｂ……他方の作動室。
FIG. 1 is a plan view showing one valve rotor of a rotary control valve according to an embodiment of the device of the present invention in relation to the other valve sleeve, and FIG. 2 is an assembled state of this valve rotor and valve sleeve. FIGS. 3 to 6 are views corresponding to FIGS. 1 and 2 showing different operating states, FIG. 7 is a graph showing the relationship between input torque and output torque in a conventional device, and FIG. The figure is a graph showing the relationship between input torque and output torque in the device of the present invention, Figure 9 is a diagram equivalent to Figure 1 showing another embodiment of the device of the present invention, and Figure 10 is the overall configuration of a conventional power steering device. FIG. 1...Rotary control valve, 2...Valve rotor, 3...
First groove, 4... Second groove, 5... Valve sleeve, 7...
...first recessed part, 8...second recessed part, 9, 10a,
10b...Third groove, 20...Cylinder, 20a...
...one working chamber, 20b...the other working chamber.
Claims (1)
溝とを周方向複数個所に交互に設けた弁ロータと
、シリンダの一方の作動室へ連なる第１凹入部と
他方の作動室へ連なる第２凹入部とを周方向複数
個所に交互に設けた弁スリーブとから成る回転形
制御弁を備え、これら両部材間の回転変位により
圧力流体を分配制御して舵取補助動力を得るよう
にした動力舵取装置において、上記弁ロータ側の
第１溝と上記弁スリーブ側の両凹入部との、いず
れか一方を軸方向の長尺溝とし、他方の短尺溝側
にはこれと同一軸線上に離隔せしめて該短尺溝よ
りも小幅に設定されタンクへ連通された第３溝を
形成し、かつこの第３溝は軸方向設定位置を少な
くともその一部が他方の長尺溝の末端内に配置さ
れるよう位置設定して構成されていることを特徴
とする動力舵取装置の除荷装置。 The first groove into which pressure oil is introduced and the second groove connected to the tank.
A valve rotor in which grooves are alternately provided at multiple locations in the circumferential direction, and a first recessed portion connected to one working chamber of the cylinder and a second recessed portion connected to the other working chamber are provided alternately at multiple locations in the circumferential direction. In the power steering device, the power steering device includes a rotary control valve consisting of a valve sleeve and controls the distribution of pressure fluid through rotational displacement between these two members to obtain steering assist power. and the two recessed portions on the valve sleeve side, one of which is a long groove in the axial direction, and the other short groove side is spaced apart on the same axis and has a narrower width than the short groove. forming a third groove communicating with the other elongated groove, and the third groove is configured with an axial setting position such that at least a portion thereof is disposed within the end of the other elongated groove. Features: Unloading device for power steering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988066408U JPH0755183Y2 (en) | 1988-05-20 | 1988-05-20 | Unloading device for power steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988066408U JPH0755183Y2 (en) | 1988-05-20 | 1988-05-20 | Unloading device for power steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01168363U true JPH01168363U (en) | 1989-11-28 |
| JPH0755183Y2 JPH0755183Y2 (en) | 1995-12-20 |
Family
ID=31291815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988066408U Expired - Lifetime JPH0755183Y2 (en) | 1988-05-20 | 1988-05-20 | Unloading device for power steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755183Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0439169U (en) * | 1990-08-01 | 1992-04-02 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030889A (en) * | 1973-05-19 | 1975-03-27 | ||
| JPS5310235A (en) * | 1976-07-16 | 1978-01-30 | Mitsubishi Electric Corp | Simple type wire telecommunication unit |
-
1988
- 1988-05-20 JP JP1988066408U patent/JPH0755183Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030889A (en) * | 1973-05-19 | 1975-03-27 | ||
| JPS5310235A (en) * | 1976-07-16 | 1978-01-30 | Mitsubishi Electric Corp | Simple type wire telecommunication unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0439169U (en) * | 1990-08-01 | 1992-04-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755183Y2 (en) | 1995-12-20 |