GB819659A - Improvements in or relating to a power assisted steering mechanism for motor vehicles - Google Patents

Improvements in or relating to a power assisted steering mechanism for motor vehicles

Info

Publication number
GB819659A
GB819659A GB18033/56A GB1803356A GB819659A GB 819659 A GB819659 A GB 819659A GB 18033/56 A GB18033/56 A GB 18033/56A GB 1803356 A GB1803356 A GB 1803356A GB 819659 A GB819659 A GB 819659A
Authority
GB
United Kingdom
Prior art keywords
port
piston
pump
compartment
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.)
Expired
Application number
GB18033/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB819659A publication Critical patent/GB819659A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/087—Sliding spool valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Actuator (AREA)
  • Power Steering Mechanism (AREA)

Abstract

819,659. Vehicle power steering. REIS, S. June 11, 1956 [June 10, 1955], No. 18033/56. Class 79(5) In a power assisted steering mechanism having the rod 5 of a double acting piston 2 connected to the steerable wheels (not shown) and to a valve external to the cylinder 1 housing the piston 2, pressure fluid is supplied by a pump 6 directly to the smaller face of the piston and to the valve which selectively directs the fluid the the larger face of the piston 2 to move it, back to the pump 6 whereby the piston 2 is moved by the pressure on the smaller face, or both to the pump 6 and the larger side whereby the piston 2 is not moved. As shown, the piston 2 divides the cylinder 1 into compartments 3, 4, the cross sectional area of the rod 5 being half that of the cylinder 1 and the compartment 3 being connected by pipes 8, 7 to the output of the pump. The compartment 4 is connected by a pipe 22 to a port 21 in a valve body 11 also having a port 18 connected by a pipe 19 to a sump 40 connected to the pump inlet. The valve body 11 also has a port 10 connected by pipes 9, 7 to the pump output. A bore 12 in the body 11 houses a valve element 14, the body 11 being connected to the vehicle steering means (not shown) and the element 14 to the rod 5. The element 14 has a groove 15 and the body 11 a groove 20, whereby movement of the element 14 relative to the body 11 to the right or left of the position shown causes the end 16 of the element 14 to co-operate with the bore 12 to prevent fluid flow in the bore 12 either between the port 10 and the ports 18, 21 or between the port 18 and the port 21, thus pressurizing the compartment 3 or the compartment 4. In order to provide the driver with "feel", a pipe 36 connects the pump output to a port 34 leading to a compartment 35 housing a reduced portion 23 of the element 14. The portion 23 carries between a shoulder 24 and a stop 25 a washer 26, a spring 27 and a sleeve 28, the washer 26 and sleeve 28 co-operating with shoulders 31, 32 on an extension 30 of the body 11. The washer 26 has an aperture 29 connecting the compartment 35 with a chamber 33. In a modified valve construction, Fig. 2 (not shown), the port 21 is provided in a reduced portion of the bore 12, the valve operating in a similar manner.
GB18033/56A 1955-06-10 1956-06-11 Improvements in or relating to a power assisted steering mechanism for motor vehicles Expired GB819659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT819659X 1955-06-10

Publications (1)

Publication Number Publication Date
GB819659A true GB819659A (en) 1959-09-09

Family

ID=11317351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18033/56A Expired GB819659A (en) 1955-06-10 1956-06-11 Improvements in or relating to a power assisted steering mechanism for motor vehicles

Country Status (3)

Country Link
DE (1) DE1084589B (en)
FR (1) FR1153774A (en)
GB (1) GB819659A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745987C2 (en) * 1977-10-13 1982-10-21 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulic power steering, in particular for motor vehicles
DE3122368A1 (en) * 1981-06-05 1982-12-23 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen HYDRO CONTROL
DE3307329A1 (en) * 1983-03-02 1984-09-06 Audi Nsu Auto Union Ag, 7107 Neckarsulm Hydraulic control device
DE3843893A1 (en) * 1988-10-04 1990-04-05 Teves Gmbh Alfred Hydraulic servopower steering system for motor vehicles
US5437216A (en) * 1994-05-03 1995-08-01 Leonard Studio Equipment, Inc. Universal hydraulic valve
CN109185249A (en) * 2018-09-28 2019-01-11 广东机电职业技术学院 A kind of car hydrostatic steering system automatic control flow valve

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR629649A (en) * 1927-02-22 1927-11-14 Steering for motor vehicles
US2018197A (en) * 1932-05-03 1935-10-22 Bendix Westinghouse Automotive Steering mechanism
US1990530A (en) * 1933-06-29 1935-02-12 Dobson George Steering mechanism for vehicles
DE729091C (en) * 1938-11-26 1942-12-09 Alessandro Calzoni Sa Auxiliary control device
GB589359A (en) * 1944-12-04 1947-06-18 Automotive Prod Co Ltd Improvements in or relating to fluid pressure servo-motor systems
GB654415A (en) * 1947-02-28 1951-06-20 Rene Leduc Improvements in control systems especially for aircraft
US2640322A (en) * 1951-01-02 1953-06-02 Shallcross Controls Inc Hydraulic steering mechanism
GB704058A (en) * 1951-11-30 1954-02-17 Gen Motors Corp Improved power steering mechanism for road vehicles
BE538844A (en) * 1954-06-09

Also Published As

Publication number Publication date
FR1153774A (en) 1958-03-21
DE1084589B (en) 1960-06-30

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