GB964540A - Hydraulic motor control valve - Google Patents

Hydraulic motor control valve

Info

Publication number
GB964540A
GB964540A GB1102863A GB1102863A GB964540A GB 964540 A GB964540 A GB 964540A GB 1102863 A GB1102863 A GB 1102863A GB 1102863 A GB1102863 A GB 1102863A GB 964540 A GB964540 A GB 964540A
Authority
GB
United Kingdom
Prior art keywords
spool
valve
fluid
steering
steering system
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
GB1102863A
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.)
Doosan Bobcat North America Inc
Original Assignee
Clark Equipment Co
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 Clark Equipment Co filed Critical Clark Equipment Co
Publication of GB964540A publication Critical patent/GB964540A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/22—Stopping means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/605—Guiding record carrier without displacing the guiding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/10—Guides or expanders for finishing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Textile Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

964,540. Power steering. CLARK EQUIPMENT CO. March 20, 1963 [March 27, 1962], No. 11028/63. Heading B7H. [Also in Division F2] The control valve 12 (Fig. 1) of a power steering system includes at each end of the valve spool 52 chambers 136, 140 communicating in the neutral position of the valve with fluid inlet ports 106, 110 by way of grooves 138, 142 extending partially across the adjacent lands 122, 126 on the valve spool 52. After an initial displacement of the spool 52 in either direction communication between one groove 138, 142 and the associated inlet port 106, 110 is cut-off whereupon fluid contained in the adjacent chamber 136 or 140 can escape only through a small clearance surrounding the land 122 or 126. The chambers 136, 140 thereby act as dashpots which damp movement of the spool to prevent " overshooting " of the valve and oscillation of the steering system. The Pitman arm (not shown) of a worm and sector steering gear is connected to a drag link 88 which effects displacement of the spool 52 by means of a ball joint 16 to control fluid flow through ports 114, 118 and passages 38, 40 to a double-acting fluid actuator 14. A ballvalve 144 normally held closed by fluid supplied through the inlet port 106 allows transfer of fluid between opposite ends of the actuator 14 to permit manual steering upon fluid pressure failure. Fig. 9 shows a steering system wherein a modified control valve 160 controls fluid flow to the actuators 306 of steerable wheels 284. The valve 160 (Fig. 8), includes a spool 198 displaced by pistons 274, 278 actuated by a positive displacement pump 336 connected to a steering wheel 334. Lands 202, 206 on the spool 198 prevent flow to and from the actuators 306 through ports 186, 188 when the spool is in the neutral position, fluid flow between inlet ports 178, 182 and an outlet port 184 being permitted through bores 220, 222 in the spool. Follow-up actuators 292 (Fig. 9), equalize the pressure on the pistons 274, 278 to restore the spool 198 to the neutral position upon completion of a steering movement. A pump 318 supplies fluid from a reservoir 320 to the valve 160, and the return conduit 324 supplies make-up fluid to the valve actuating circuit through one-way valves 350, 352, excessive pressure in the actuating circuit being relieved by one-way valves 354, 356. A valve according to the invention may be used in a power steering system for pivoting the frame sections of an articulated vehicle. Specification 824,611 is referred to.
GB1102863A 1962-03-27 1963-03-20 Hydraulic motor control valve Expired GB964540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18288762A 1962-03-27 1962-03-27

Publications (1)

Publication Number Publication Date
GB964540A true GB964540A (en) 1964-07-22

Family

ID=22670483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1102863A Expired GB964540A (en) 1962-03-27 1963-03-20 Hydraulic motor control valve

Country Status (3)

Country Link
DE (1) DE1252989B (en)
FR (1) FR1362503A (en)
GB (1) GB964540A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379766A (en) * 2018-12-27 2020-07-07 纳博特斯克有限公司 State monitoring device and fluid pressure driving device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2805774A1 (en) * 1978-02-10 1979-08-16 Knorr Bremse Gmbh Damping control system for pneumatic door actuator - has cylinder defining annular gap for air supply connection

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607599A (en) * 1949-11-12 1952-08-19 Borg Warner Three-way valve
US2924239A (en) * 1954-08-13 1960-02-09 Rockford Machine Tool Co Servo valve having helically arranged metering ports
DE1074346B (en) * 1955-02-21 1960-01-28 Bendix Aviation Corporation, New York, N. Y. (V. St. A.) Piston valve
US2919681A (en) * 1955-06-13 1960-01-05 Bendix Aviat Corp Reaction limit control valve
US2916019A (en) * 1955-08-30 1959-12-08 Western Electric Co Cushioned valves
DE1027951B (en) * 1956-07-09 1958-04-10 Karlsruhe Augsburg Iweka Hydraulic quick control with device to avoid steering knocks
GB837856A (en) * 1957-08-28 1960-06-15 Morris Motors Ltd Improvements in hydraulic control mechanism
US2942583A (en) * 1958-03-03 1960-06-28 New York Air Brake Co Pressure graduating control valve
US2971536A (en) * 1958-06-26 1961-02-14 Caterpillar Tractor Co Hydraulic control valve throttling mechanism
DE1107036B (en) * 1958-11-12 1961-05-18 Hydraulik As Manually operated control spool with a spool that can be automatically moved back into its rest position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379766A (en) * 2018-12-27 2020-07-07 纳博特斯克有限公司 State monitoring device and fluid pressure driving device

Also Published As

Publication number Publication date
FR1362503A (en) 1964-06-05
DE1252989B (en) 1967-10-26

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