JPH0435068U - - Google Patents
Info
- Publication number
- JPH0435068U JPH0435068U JP7570590U JP7570590U JPH0435068U JP H0435068 U JPH0435068 U JP H0435068U JP 7570590 U JP7570590 U JP 7570590U JP 7570590 U JP7570590 U JP 7570590U JP H0435068 U JPH0435068 U JP H0435068U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- port
- oil
- oil chamber
- torsion bar
- 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
Description
第１図はこの考案の動力舵取装置のロータリバ
ルブ式制御弁を示す縦断面図、第２図は第１図の
−断面図、第３図はトーシヨンバーの突起部
分を示す概略斜視図、第４図は突起による絞りを
示す要部断面図、第５図は第１図の−断面図
、第６図及び第７図は従来のロータリバルブ式制
御弁の還流部の絞り機構を示す縦断面図である。
２０……入力軸（第１の軸）、２０ｅ……リタ
ーンポート、２３……通液ポート、４０……ピニ
オンシヤフト（第２の軸）、５３……トーシヨン
バー、５３ａ……突起、Ａ……環状油室。
Fig. 1 is a longitudinal cross-sectional view showing a rotary valve type control valve of a power steering device of this invention, Fig. 2 is a cross-sectional view taken from Fig. 1, Fig. 3 is a schematic perspective view showing a protruding portion of a torsion bar, Figure 4 is a cross-sectional view of the main part showing a restriction by a protrusion, Figure 5 is a cross-sectional view of Figure 1, and Figures 6 and 7 are longitudinal cross-sections showing the restriction mechanism of the recirculation part of a conventional rotary valve type control valve. It is a diagram. 20...Input shaft (first shaft), 20e...Return port, 23...Liquid port, 40...Pinion shaft (second shaft), 53...Torsion bar, 53a...Protrusion, A... Annular oil chamber.
Claims (1)
ーシヨンバーによつて、第１の軸に相対回転可能
に連結された第２の軸と、トーシヨンバーの外周
と第１の軸の内周との間に形成された環状油室と
を具備し、ポンプ吐出側から圧送された作動油を
、その油圧を調節した状態で、パワーシリンダの
一対の油室のうちの一方に選択的に導き、且つパ
ワーシリンダの他方の油室からの作動油を、第１
軸を貫通した通液ポートを介して環状油室に導き
、この通液ポートよりも下流で第１の軸を貫通し
たリターンポートを介してポンプ吸入側に還流さ
せる動力舵取装置のロータリバルブ式制御弁にお
いて、 上記トーシヨンバーの外周に、上記相対回転に
伴つて上記通液ポートに臨まされて当該通液ポー
トを絞る突起部が、設けられていることを特徴と
する動力舵取装置のロータリバルブ式制御弁。[Claims for Utility Model Registration] A hollow first shaft, a second shaft rotatably connected to the first shaft by a torsion bar passing through the first shaft, and an outer periphery of the torsion bar. and an annular oil chamber formed between the inner periphery of the first shaft and the hydraulic oil pumped from the pump discharge side, with the hydraulic pressure adjusted, to the two oil chambers of the power cylinder. The hydraulic oil from the other oil chamber of the power cylinder is selectively guided to one of the two oil chambers, and the hydraulic oil from the other oil chamber of the power cylinder is
A rotary valve type power steering device that guides fluid into the annular oil chamber through a port that passes through the shaft, and returns the fluid to the pump suction side via a return port that passes through the first shaft downstream of this port. A rotary valve for a power steering device, characterized in that, in the control valve, a protrusion is provided on the outer periphery of the torsion bar to face the liquid passage port and throttle the liquid passage port as the relative rotation occurs. type control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075705U JP2529607Y2 (en) | 1990-07-16 | 1990-07-16 | Rotary valve type control valve for power steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075705U JP2529607Y2 (en) | 1990-07-16 | 1990-07-16 | Rotary valve type control valve for power steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0435068U true JPH0435068U (en) | 1992-03-24 |
| JP2529607Y2 JP2529607Y2 (en) | 1997-03-19 |
Family
ID=31616516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990075705U Expired - Lifetime JP2529607Y2 (en) | 1990-07-16 | 1990-07-16 | Rotary valve type control valve for power steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529607Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126773U (en) * | 1983-02-17 | 1984-08-25 | トヨタ自動車株式会社 | Rotary valve type control valve for power steering device |
-
1990
- 1990-07-16 JP JP1990075705U patent/JP2529607Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126773U (en) * | 1983-02-17 | 1984-08-25 | トヨタ自動車株式会社 | Rotary valve type control valve for power steering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2529607Y2 (en) | 1997-03-19 |
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