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GB1386006A - Hydraulic systems - Google Patents

Hydraulic systems

Info

Publication number
GB1386006A
GB1386006A GB737572A GB737572A GB1386006A GB 1386006 A GB1386006 A GB 1386006A GB 737572 A GB737572 A GB 737572A GB 737572 A GB737572 A GB 737572A GB 1386006 A GB1386006 A GB 1386006A
Authority
GB
United Kingdom
Prior art keywords
spool
motor
restriction
spring
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.)
Expired
Application number
GB737572A
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.)
Patents and Development AS
Original Assignee
Patents and Development AS
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 Patents and Development AS filed Critical Patents and Development AS
Publication of GB1386006A publication Critical patent/GB1386006A/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/30505—Non-return valves, i.e. check 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
    • F15B2211/70—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
    • F15B2211/7058—Rotary 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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86879—Reciprocating valve unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1386006 Hydraulic motor control circuits PATENTS & DEVELOPMENTS A S 17 Feb 1972 [5 March 1971 8 Dec 1971] 7375/72 Heading F 1P [Also in Divisions F2 and G3] In a system comprising two pumps 14, 15 supplying parallel motors 22a-22d each motor receives fluid through a respective flow regulator 21a-21d controlled by a rezoactive pilot valve 32-35 at console 25. Each flow regulator Fig. 3 includes a spool 54 biased to the open position shown by spring 64 so that fluid flows from inlet 41 to motor supply line 23i via metering ports 51 and restriction 67, the pressure drop across the restriction being applied to the spool to act in opposition to spring 64. The pilot valve provides a variable bleed from chamber 63, in which pressure downstream of the restriction acts on the spool, and thereby adjusts the flow-rate to the motor and controls the maximum pressure at the motor. Optional auxiliary spool 77 closes motor supply port 76 when pressure downstream of the the restriction falls to a predetermined value, e.g. upon closure of spool 54 following full opening of valve 32. The motors may drive pumps, winches, control and propulsion units on a tanker.
GB737572A 1971-03-05 1972-02-17 Hydraulic systems Expired GB1386006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO00845/71A NO131097B (en) 1971-03-05 1971-03-05

Publications (1)

Publication Number Publication Date
GB1386006A true GB1386006A (en) 1975-03-05

Family

ID=19877848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB737572A Expired GB1386006A (en) 1971-03-05 1972-02-17 Hydraulic systems

Country Status (6)

Country Link
US (1) US3800831A (en)
JP (1) JPS5428906B1 (en)
DE (1) DE2208982A1 (en)
GB (1) GB1386006A (en)
NO (1) NO131097B (en)
SE (1) SE381920B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149375B1 (en) * 1983-11-25 1988-10-12 Mors Work pallet, provided with a control system and preferably with a separate cylinder control, to operate with an independent pressure
DE3538979C2 (en) * 1985-11-02 1996-02-22 Hella Kg Hueck & Co Method and device for supplying several pneumatically operated devices with pressure medium
DE3834201A1 (en) * 1988-04-22 1989-11-02 Rexroth Mannesmann Gmbh Arrangement for feeding pressure medium to hydraulic consumers
BRPI0501085A (en) * 2005-02-02 2006-09-12 Savvy Offshore Engenharia & Co pneumatic and hydraulic equipment operation system
US20190061918A1 (en) * 2017-08-22 2019-02-28 Hamilton Sundstrand Corporation Electric hydraulic actuation system for a safety critical application
CN111022075B (en) * 2019-10-29 2021-02-12 中铁五局集团第一工程有限责任公司 Tunnel equipment

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877576A (en) * 1932-09-13 Multiple quantity regulation
US1923595A (en) * 1930-05-14 1933-08-22 Cash A W Co Control mechanism
US1934713A (en) * 1931-04-10 1933-11-14 Gen Zeolite Co Fluid flow controller
US2155421A (en) * 1937-12-09 1939-04-25 Sperry Gyroscope Co Inc Safety device for hydraulic servomotors
US2255787A (en) * 1941-03-06 1941-09-16 Manly Corp Fluid pressure device and system
US2397299A (en) * 1943-05-28 1946-03-26 Adel Prec Products Corp Emergency hand pump selector valve
US2415603A (en) * 1943-08-26 1947-02-11 Hydraulic Dev Corp Inc Hydraulic constant speed control system for parallel-connected hydraulic motors
GB875766A (en) * 1959-05-30 1961-08-23 James Clarke And Sons Stoke On Improvements in and relating to tier stands for table use
US3344805A (en) * 1965-03-24 1967-10-03 Fischer & Porter Co Automatic flow rate control system
US3420265A (en) * 1967-01-13 1969-01-07 Bell Aerospace Corp Hydraulic flow limiting device
US3524386A (en) * 1968-06-11 1970-08-18 Sylvester R Cudnohufsky Hydraulic system for machine tool control
US3547158A (en) * 1968-11-27 1970-12-15 Woodward Governor Co Valve structure with o-ring seal

Also Published As

Publication number Publication date
JPS5428906B1 (en) 1979-09-19
SE381920B (en) 1975-12-22
DE2208982A1 (en) 1972-09-14
US3800831A (en) 1974-04-02
NO131097B (en) 1974-12-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years