GB971821A - Improvements in or relating to hydraulic control valves - Google Patents

Improvements in or relating to hydraulic control valves

Info

Publication number
GB971821A
GB971821A GB11252/61A GB1125261A GB971821A GB 971821 A GB971821 A GB 971821A GB 11252/61 A GB11252/61 A GB 11252/61A GB 1125261 A GB1125261 A GB 1125261A GB 971821 A GB971821 A GB 971821A
Authority
GB
United Kingdom
Prior art keywords
flow
ports
spool
pressure
service port
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
GB11252/61A
Inventor
Richard Guy Peach
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.)
Hamworthy Engineering Ltd
Original Assignee
Hamworthy Engineering Ltd
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 Hamworthy Engineering Ltd filed Critical Hamworthy Engineering Ltd
Priority to GB11252/61A priority Critical patent/GB971821A/en
Priority to US178806A priority patent/US3186424A/en
Publication of GB971821A publication Critical patent/GB971821A/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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F15B13/0403—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves a secondary valve member sliding within the main spool, e.g. for regeneration flow
    • 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
    • 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
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • F15B13/0418—Load sensing elements sliding within a hollow main valve spool
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2579—Flow rate responsive
    • Y10T137/2582—Including controlling main line flow
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • 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
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/86702—With internal flow passage
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Flow Control (AREA)

Abstract

971,821. Valves. HAMWORTHY ENGINEERING Ltd. Feb. 21, 1962 [March 28, 1961], No. 11252/61. Heading F2V. An hydraulic control valve comprises a body in which a control spool is slidably arranged for connecting a service port to a high pressure or a low pressure line, and a pressure compensated by-pass flow regulator carried by the spool for controlling the flow of fluid from the highpressure line to the service port, the regulator serving to maintain a pre-set flow to the service port by by-passing to the low-pressure line the unwanted part of the flow of fluid. As shown in a duplicated arrangement, an open-centre valve spool 2 is adapted to connect two service ports 9 and 10 selectively with corresponding pressure ports 8 and 7 or with a drain gallery 5 in body 1, through ports 17, 22 in the spool. In the neutral position shown, a main pressure supply to body 1 is connected direct to the drain gallery via annular recess 6 in the spool. Movement, e.g. to the right, connects pressure port 7 of the left hand regulator with service port 10 through spool ports 17, 22, this flow taking place past an annular clearance space 19 round the pressure balanced by-pass flow regulating valve 15 which is spring-urged on to a seat 11 connecting the ports 17 with drain ports 21 in the spool, the by-pass valve 15 on the left being responsive in this position to flow rate past the clearance space 19 to maintain the flow to the service port at a predetermined value and pass the unwanted flow to the drain gallery. In this operated position ports 22 of the other regulator 15 communicate with the gallery 5 and the total flow from the service port 9 is returned to drain.
GB11252/61A 1961-03-28 1961-03-28 Improvements in or relating to hydraulic control valves Expired GB971821A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB11252/61A GB971821A (en) 1961-03-28 1961-03-28 Improvements in or relating to hydraulic control valves
US178806A US3186424A (en) 1961-03-28 1962-03-12 Hydraulic control valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11252/61A GB971821A (en) 1961-03-28 1961-03-28 Improvements in or relating to hydraulic control valves

Publications (1)

Publication Number Publication Date
GB971821A true GB971821A (en) 1964-10-07

Family

ID=9982818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11252/61A Expired GB971821A (en) 1961-03-28 1961-03-28 Improvements in or relating to hydraulic control valves

Country Status (2)

Country Link
US (1) US3186424A (en)
GB (1) GB971821A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415265A (en) * 1966-03-03 1968-12-10 Parker Hannifin Corp Directional control valve with priority flow divider
CA1030040A (en) * 1975-01-13 1978-04-25 Commercial Shearing Compensated work port fluid valves
US4459079A (en) * 1979-07-23 1984-07-10 Sperry Corporation Unloading auger control system
US4719753A (en) * 1985-02-22 1988-01-19 Linde Aktiengesellschaft Slide valve for load sensing control in a hydraulic system
DE19651967A1 (en) * 1996-12-13 1998-06-18 Mannesmann Rexroth Ag Directional control valve for load-independent control of a hydraulic consumer with regard to direction and speed
DE102006012030A1 (en) * 2006-03-14 2007-09-20 Robert Bosch Gmbh Hydraulic valve arrangement
US8602060B2 (en) * 2008-09-22 2013-12-10 GM Global Technology Operations LLC Multiplexing control valve
US20100224803A1 (en) * 2009-03-03 2010-09-09 Sonnax Industries, Inc. Valve Body Fluid Rerouting System
US8919381B2 (en) 2009-03-03 2014-12-30 Sonnax Industries, Inc. Valve body fluid rerouting system
DE102014019615A1 (en) * 2014-12-30 2016-06-30 Hydac Fluidtechnik Gmbh valve device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946347A (en) * 1959-04-22 1960-07-26 New York Air Brake Co Control valve having a movable member containing combination check and relief valve unit

Also Published As

Publication number Publication date
US3186424A (en) 1965-06-01

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