GB589359A - Improvements in or relating to fluid pressure servo-motor systems - Google Patents

Improvements in or relating to fluid pressure servo-motor systems

Info

Publication number
GB589359A
GB589359A GB2423244A GB2423244A GB589359A GB 589359 A GB589359 A GB 589359A GB 2423244 A GB2423244 A GB 2423244A GB 2423244 A GB2423244 A GB 2423244A GB 589359 A GB589359 A GB 589359A
Authority
GB
United Kingdom
Prior art keywords
nut
servomotor
driven member
plunger
cylinder space
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
GB2423244A
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Priority to GB3261745A priority Critical patent/GB589381A/en
Priority to GB2423244A priority patent/GB589359A/en
Publication of GB589359A publication Critical patent/GB589359A/en
Priority to DEP31656A priority patent/DE828637C/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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • 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
    • 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
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/24—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for worm type
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Rotary Pumps (AREA)

Abstract

589,359. Fluid-pressure servomotor-control systems. AUTOMOTIVE PRODUCTS CO., Ltd., and CHOUINGS, L. C. Dec. 4, 1944, No. 24232. [Class 135] A fluid-pressure servomotor system, applicable to vehicle steering gear, comprises an operating member 34, Fig. 1, connected to a driven member 26, for moving, e.g. the drop arm 15 of the steering gear, through a nut 31, angular movement of the nut operating a control valve 41 through a bell crank 38, Fig. 2, whereby the servomotor differential piston 21 moves the driven member and through the resulting opposite angular movement of the nut returns the valve to its initial position thus rendering the servomotor inoperative, the nut being connected to the driven member through a thrust bearing 30. The valve 41 comprises a casing having a spring-loaded plunger 47, operated by the bell-crank 38, which slides in the casing and laps with the end of the. spring-loaded plunger 44 to control the port 53 leading to the reservoir 57. The other end of the plunger 44 has a head 45 controlling communication between the ports 51, 49, leading to the pump 59 and the cylinder space 28, and the cylinder space 29 respectively. Inward movement of the plunger 47 unseats the head 45 to allow ' pressure fluid to flow to the cylinder space 29 to move the piston downwards. Reverse movement, of the plunger 47 allows the head 45 to seat and. opens the port 53 allowing pressure fluid to flow from the cylinder space 29 through the bore 55 to the reservoir so that the piston moves upwards. The driven member 26 may be an axially movable operating member while the shaft 34 may be a rotatable driven member. Resilient biassing means in the form of a spring- loaded plunger 65 engaging a helical groove 68 in the nut tends to rotate the nut back to its central position whenever the nut is displaced therefrom. In a modification the drop arm is connected through a shaft to arms having rotatable studs engaging grooves in the nut, the servomotor being connected to the drop arm. Specification 589,381 is referred to.
GB2423244A 1944-12-04 1944-12-04 Improvements in or relating to fluid pressure servo-motor systems Expired GB589359A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3261745A GB589381A (en) 1944-12-04 1944-12-04 Improvements in or relating to valves for fluid pressure systems
GB2423244A GB589359A (en) 1944-12-04 1944-12-04 Improvements in or relating to fluid pressure servo-motor systems
DEP31656A DE828637C (en) 1944-12-04 1949-01-15 Hydraulic auxiliary power system, especially for motor vehicle steering devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2423244A GB589359A (en) 1944-12-04 1944-12-04 Improvements in or relating to fluid pressure servo-motor systems

Publications (1)

Publication Number Publication Date
GB589359A true GB589359A (en) 1947-06-18

Family

ID=10208483

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2423244A Expired GB589359A (en) 1944-12-04 1944-12-04 Improvements in or relating to fluid pressure servo-motor systems
GB3261745A Expired GB589381A (en) 1944-12-04 1944-12-04 Improvements in or relating to valves for fluid pressure systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3261745A Expired GB589381A (en) 1944-12-04 1944-12-04 Improvements in or relating to valves for fluid pressure systems

Country Status (2)

Country Link
DE (1) DE828637C (en)
GB (2) GB589359A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976322C (en) * 1951-10-03 1963-06-27 Bendix Corp Control valve for a double-acting hydraulic motor, in particular for the power control of motor vehicles
GB2119763A (en) * 1982-03-11 1983-11-23 Ferag Ag Apparatus for transporting flat products especially printed products arriving in an imbricated formation

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730893A (en) * 1951-10-20 1955-06-01 Bendix Aviat Corp Improvements in power steering mechanisms for land vehicles
GB774020A (en) * 1954-04-21 1957-05-01 Thompson Prod Inc Improvements in or relating to vehicle power steering systems
DE949868C (en) * 1954-11-23 1956-09-27 Daimler Benz Ag Motor vehicle steering device in connection with a device for scanning and amplifying the steering force applied to the steering wheel
FR1153774A (en) * 1955-06-10 1958-03-21 Differential piston servo motor, in particular for motor vehicle steering gears
DE1025281B (en) * 1956-06-07 1958-02-27 Daimler Benz Ag Power steering for motor vehicles
DE1102583B (en) * 1957-05-27 1961-03-16 Fulminawerk K G Franz Mueller Steering gear for motor vehicles with subdivided steering shaft and hydraulic steering aid
DE1099867B (en) * 1957-08-09 1961-02-16 Fulminawerk K G Franz Mueller Steering gear for motor vehicles with hydraulic power steering
DE1128764B (en) * 1958-04-08 1962-04-26 Fulminawerk K G Franz Mueller Steering gear for motor vehicles with hydraulic power steering
DE1137964B (en) * 1958-09-23 1962-10-11 Arthur E Bishop Steering gear for vehicles, especially with power steering
DE1137963B (en) * 1958-10-03 1962-10-11 Arthur E Bishop Power steering for motor vehicles
DE1209011B (en) * 1958-10-03 1966-01-13 Arthur E Bishop Steering gear with variable transmission ratio for motor vehicles
DE1152623B (en) * 1958-12-08 1963-08-08 Zahnradfabrik Friedrichshafen Steering with hydraulic auxiliary power device for motor vehicles
DE1138652B (en) * 1958-12-08 1962-10-25 Zahnradfabrik Friedrichshafen Hydraulic power steering for motor vehicles
DE2931139C2 (en) * 1979-08-01 1984-01-05 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Control valve with open center position
DE3122368A1 (en) * 1981-06-05 1982-12-23 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen HYDRO CONTROL
DE3616234A1 (en) * 1986-05-14 1987-11-19 Bayerische Motoren Werke Ag DEVICE FOR THE RELATIVE TURNING CHANGE OF TWO DRIVELY CONNECTED SHAFTS, ESPECIALLY BETWEEN A CRANKSHAFT AND CAMSHAFT BEARING IN A MACHINE HOUSING OF AN INTERNAL COMBUSTION ENGINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976322C (en) * 1951-10-03 1963-06-27 Bendix Corp Control valve for a double-acting hydraulic motor, in particular for the power control of motor vehicles
GB2119763A (en) * 1982-03-11 1983-11-23 Ferag Ag Apparatus for transporting flat products especially printed products arriving in an imbricated formation

Also Published As

Publication number Publication date
DE828637C (en) 1952-01-21
GB589381A (en) 1947-06-18

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