JPS5442731A - Valve unit used in power steering system of vehicle - Google Patents
Valve unit used in power steering system of vehicleInfo
- Publication number
- JPS5442731A JPS5442731A JP9026177A JP9026177A JPS5442731A JP S5442731 A JPS5442731 A JP S5442731A JP 9026177 A JP9026177 A JP 9026177A JP 9026177 A JP9026177 A JP 9026177A JP S5442731 A JPS5442731 A JP S5442731A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- acted
- hydraulic pressure
- ports
- 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.)
- Granted
Links
Landscapes
- Power Steering Mechanism (AREA)
- Multiple-Way Valves (AREA)
Abstract
PURPOSE: To provide a valve unit used in power steering system of vehicle, in which area of a pressure receiving surface, formed at one side of a rotary valve body where hydraulic pressure acted to oil supplying ports is acted, is made different from that at the other side of the rotary valve body where hydraulic pressure acted to cylinder port is received, whereby it is enabled to prevent self-excited vibration of the valve body which is possibly caused when turning back the steering shaft.
CONSTITUTION: When steering shaft 3 is turned, hydraulic pressure acted to valve body 6 is received at front and rear pressure receiving surfaces facing cylinder ports 18, 18, 18', 18' and at front and rear pressure receiving surfaces constituting oil supplying grooves 22, 22, 22', 22' and the valve body 6 is urged onto rear frame 10 of valve box 7 by a force correesponding to the difference of area between the front and the rear oil supplying grooves 22, 22, 22', 22'. Here, the force is relatively small so that it does not cause any trouble in turning the valve body 6. When the valve body 6 causes self-excited vibration at the time of turning back the steering shaft, high and low oscillating hydraulic pressure is acted respectively at ports 14, 14 and cylinder ports 18, 18, 18', 18', and valve body 6 is urged onto the frame 10 by a force corresponding to the area difference, so that the vibration of the valve body 6 can be attenuated effectively by the frictional force./
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9026177A JPS5442731A (en) | 1977-07-29 | 1977-07-29 | Valve unit used in power steering system of vehicle |
GB8026004A GB2051716B (en) | 1977-07-29 | 1978-07-17 | Power steering systems |
GB7830122A GB2001592B (en) | 1977-07-29 | 1978-07-17 | Vehicle power steering apparatus |
FR7821678A FR2398653A1 (en) | 1977-07-29 | 1978-07-21 | Power steering device for vehicle |
US05/928,076 US4240331A (en) | 1977-07-29 | 1978-07-26 | Power steering apparatus for vehicle |
DE19782833009 DE2833009A1 (en) | 1977-07-29 | 1978-07-27 | POWER STEERING FOR VEHICLES |
US06/171,015 US4369695A (en) | 1977-07-29 | 1980-07-21 | Power steering apparatus for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9026177A JPS5442731A (en) | 1977-07-29 | 1977-07-29 | Valve unit used in power steering system of vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5442731A true JPS5442731A (en) | 1979-04-04 |
JPS5744505B2 JPS5744505B2 (en) | 1982-09-21 |
Family
ID=13993548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9026177A Granted JPS5442731A (en) | 1977-07-29 | 1977-07-29 | Valve unit used in power steering system of vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5442731A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5769766U (en) * | 1980-10-16 | 1982-04-27 | ||
US4501191A (en) * | 1982-06-18 | 1985-02-26 | Cam Gears Limited | Power assisted steering gear |
US4527591A (en) * | 1982-05-26 | 1985-07-09 | Bendiberica S.A. | Hydraulic rotary distributor with a star-shaped rotor, more particularly for a power-assisted steering mechanism |
JPS62173467U (en) * | 1986-04-22 | 1987-11-04 |
-
1977
- 1977-07-29 JP JP9026177A patent/JPS5442731A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5769766U (en) * | 1980-10-16 | 1982-04-27 | ||
US4527591A (en) * | 1982-05-26 | 1985-07-09 | Bendiberica S.A. | Hydraulic rotary distributor with a star-shaped rotor, more particularly for a power-assisted steering mechanism |
US4501191A (en) * | 1982-06-18 | 1985-02-26 | Cam Gears Limited | Power assisted steering gear |
JPS62173467U (en) * | 1986-04-22 | 1987-11-04 |
Also Published As
Publication number | Publication date |
---|---|
JPS5744505B2 (en) | 1982-09-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5442731A (en) | Valve unit used in power steering system of vehicle | |
JPS538476A (en) | Deceleration sensor system brake oil pressure controller | |
JPS5365576A (en) | Hydraulic braking apparatus for vehicles | |
JPS5386976A (en) | Brake liquid pressure controlling valve | |
JPS52135972A (en) | Brake hydraulic pressure control unit | |
JPS5365574A (en) | Braking liquid pressure controlling device | |
USD278292S (en) | Hammock | |
JPS5423876A (en) | Master cylinder with hydraulic control valve | |
JPS53148667A (en) | Brake fluid pressure controller | |
JPS5413866A (en) | Transmission system in cursorial operation car | |
JPS5412075A (en) | Oil pressure generator in damping device of car | |
JPS53132642A (en) | Dynamic pressure type bearing with recess | |
JPS52145863A (en) | Device for mounting liner for use in crushing mill | |
JPS54104125A (en) | Speed change transmission mechanism for tractor | |
JPS52143380A (en) | Liquid pressure control apparatus | |
JPS5428086A (en) | Gun drill | |
JPS5673222A (en) | Hydrostatic bearing device | |
JPS5313036A (en) | Water pump driving device of engine for two-wheel barrow | |
JPS53126504A (en) | Neutral position holding device for rotor of rotation system | |
JPS53143867A (en) | Master cylinder | |
JPS5411503A (en) | Variable capacity hydraulic device | |
JPS52106004A (en) | Vapor valve | |
JPS5352876A (en) | Oil pressure circuit for oil pressure type working vehicle | |
JPS5472368A (en) | Hydraulic control system for dual brake system in vehicle | |
JPS5671652A (en) | Proportional pressure reducing valve for double brake system |