JPS5951675U - power steering device - Google Patents
power steering deviceInfo
- Publication number
- JPS5951675U JPS5951675U JP14716282U JP14716282U JPS5951675U JP S5951675 U JPS5951675 U JP S5951675U JP 14716282 U JP14716282 U JP 14716282U JP 14716282 U JP14716282 U JP 14716282U JP S5951675 U JPS5951675 U JP S5951675U
- Authority
- JP
- Japan
- Prior art keywords
- oil passage
- input shaft
- chamber
- valve
- pressure
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本案に係るパワーステアリング装置の一実施例
を示す縦断側面図、第２図はその油圧回路図、第３図は
油路開閉弁の一実施例を示す縦断側面図、第４図は圧力
制御弁の一実施例を示す縦断側面図、第５図はオイルポ
ンプの吐出流量特性を示す説明図、第６図は細孔の上流
圧を示す説明図、第７図は圧力制御弁のチャンバー（出
入口側圧力室）の圧力を示す説明図、第８図は圧力−人
力トルク特性を示す説明図、第９図は反力ビストン背面
側の圧力変化を示す説明図である。
１ａ・・・・・・エンジン、１ｂ・・・・・・オイルポ
ンプ、２・・・・・・油路切換弁、３・・・・・・パワ
ーシリンダ、４・曲・タンク、５・・・・・・反力ビス
トン、６・・・・・・チャンバー、７・・・・・・細孔
、８・・・・・・高圧油路、８′・・・・・・分岐油路
、９・・・・・・低圧油路、１０・・・・・・油路開閉
弁、１１・・同圧力制御弁、１８Ｃ・・・・・・チャン
バー、２１・・・・・・ケーシング、３８・・・・・・
トーションバー、３９・・・・・・入力軸、４０・・・
・・・バルブボディ。FIG. 1 is a longitudinal side view showing an embodiment of the power steering device according to the present invention, FIG. 2 is a hydraulic circuit diagram thereof, FIG. 3 is a longitudinal side view showing an embodiment of the oil passage opening/closing valve, and FIG. 5 is an explanatory diagram showing the discharge flow rate characteristics of an oil pump, FIG. 6 is an explanatory diagram showing the upstream pressure of the pore, and FIG. 7 is a longitudinal side view showing an embodiment of the pressure control valve. FIG. 8 is an explanatory diagram showing pressure-human torque characteristics, and FIG. 9 is an explanatory diagram showing pressure changes on the back side of the reaction force piston. 1a...Engine, 1b...Oil pump, 2...Oil passage switching valve, 3...Power cylinder, 4...Turn/tank, 5... ...Reaction force piston, 6...Chamber, 7...Pore, 8...High pressure oil path, 8'...Branch oil path, 9...Low pressure oil passage, 10...Oil passage opening/closing valve, 11...Pressure control valve, 18C...Chamber, 21...Casing, 38・・・・・・
Torsion bar, 39... Input shaft, 40...
...Valve body.
Claims (1)
４０と入力軸３９とを相対的に変位させることにより油
路を切換えてパワーシリンダ３へ選択的に配油する油路
切換用ロータリー弁２と、前記入力軸３９の周りに配設
した複数の反力ビストン５と、一定車速以上の走行時に
開く油路開閉弁１０と、作動油の圧力をほぼ一定の圧力
に保持する圧力制御弁１１とを有し、同油路開閉弁１０
と同圧力制御弁１１とを高圧油路８の途中から前記各反
力ビストン５の背面側チャンバー６へ延びた分岐油路８
′に介装するとともに前記各弁２゜１０．１１を同一の
バルブケーシング２１内に設け、前記トーションバー３
８と別記入力軸３９との間に形成しバチャンバ−４９を
入力軸３９に設けた細孔７を介して低圧油路９に接続す
るとともに同チャンバー４９を入力軸３９及び反力ビス
トン５の正面側に設けた油路９″を介して前記圧力制御
弁１１の一端に設けたチャンバー１８Ｃに接続したこと
を特徴とするパワーステアリング装置。an oil passage switching rotary valve 2 that selectively distributes oil to the power cylinder 3 by switching the oil passage by relatively displacing the valve body 40 and the input shaft 39 using torsional displacement of the torsion bar 38; A plurality of reaction force pistons 5 arranged around the input shaft 39, an oil passage opening/closing valve 10 that opens when the vehicle is running at a certain speed or higher, and a pressure control valve 11 that maintains the pressure of the hydraulic oil at a substantially constant pressure. The oil passage opening/closing valve 10
and the same pressure control valve 11 are connected to a branch oil passage 8 extending from the middle of the high pressure oil passage 8 to the chamber 6 on the back side of each reaction force piston 5.
' and each of the valves 2, 10 and 11 are provided in the same valve casing 21, and the torsion bar 3
8 and a separate input shaft 39, a chamber 49 is connected to the low pressure oil passage 9 through a small hole 7 provided in the input shaft 39, and the chamber 49 is connected to the front side of the input shaft 39 and the reaction force piston 5. A power steering device characterized in that it is connected to a chamber 18C provided at one end of the pressure control valve 11 via an oil passage 9'' provided on the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14716282U JPS5951675U (en) | 1982-09-30 | 1982-09-30 | power steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14716282U JPS5951675U (en) | 1982-09-30 | 1982-09-30 | power steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5951675U true JPS5951675U (en) | 1984-04-05 |
| JPH022700Y2 JPH022700Y2 (en) | 1990-01-23 |
Family
ID=30327339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14716282U Granted JPS5951675U (en) | 1982-09-30 | 1982-09-30 | power steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5951675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112469A (en) * | 1984-06-26 | 1986-01-20 | Toyoda Mach Works Ltd | Steering force control device in power steering unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5027529U (en) * | 1973-07-09 | 1975-03-29 | ||
| JPS52140129A (en) * | 1976-05-15 | 1977-11-22 | Nissan Motor Co Ltd | Steering force control system for power steering device |
| JPS5387433A (en) * | 1977-01-07 | 1978-08-01 | Nissan Motor Co Ltd | Apparatus for controlling steering force of power steering system |
-
1982
- 1982-09-30 JP JP14716282U patent/JPS5951675U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5027529U (en) * | 1973-07-09 | 1975-03-29 | ||
| JPS52140129A (en) * | 1976-05-15 | 1977-11-22 | Nissan Motor Co Ltd | Steering force control system for power steering device |
| JPS5387433A (en) * | 1977-01-07 | 1978-08-01 | Nissan Motor Co Ltd | Apparatus for controlling steering force of power steering system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112469A (en) * | 1984-06-26 | 1986-01-20 | Toyoda Mach Works Ltd | Steering force control device in power steering unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH022700Y2 (en) | 1990-01-23 |
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