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SE7503580L - SELF-REGULATORY MEASUREMENT OPENING CONSTRUCTION. - Google Patents

SELF-REGULATORY MEASUREMENT OPENING CONSTRUCTION.

Info

Publication number
SE7503580L
SE7503580L SE7503580A SE7503580A SE7503580L SE 7503580 L SE7503580 L SE 7503580L SE 7503580 A SE7503580 A SE 7503580A SE 7503580 A SE7503580 A SE 7503580A SE 7503580 L SE7503580 L SE 7503580L
Authority
SE
Sweden
Prior art keywords
pressure
piston
cylinder
self
measurement opening
Prior art date
Application number
SE7503580A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE408816B (en
Inventor
P E Hanser
W L Snyder
Original Assignee
Deere & 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 Deere & Co filed Critical Deere & Co
Publication of SE7503580L publication Critical patent/SE7503580L/en
Publication of SE408816B publication Critical patent/SE408816B/en

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
    • 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
    • Y10T137/2544—Supply and exhaust type
    • Y10T137/2554—Reversing or 4-way valve systems
    • 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
    • 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
    • Y10T137/87193—Pilot-actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Measuring Fluid Pressure (AREA)
  • Check Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Sliding Valves (AREA)

Abstract

A directional control valve is provided for controlling the extension and retraction of a two-way hydraulic motor of the type including a piston rod having a piston secured to one end thereof and reciprocably received within a cylinder. The control valve includes a sleeve-like pressure-equalizing valve element having its opposite ends respectively subjected to system pressure and to the pressure at that port which is to be exhausted by actuation of the valve, the valve element being responsive to these pressures to prevent pressure oil from being transmitted to the cylinder at one side of the piston unless the pressure exhausting from the cylinder at the other side of the piston is at or below the system pressure.
SE7503580A 1974-04-04 1975-03-26 HYDRAULIC VALVE FOR CONTROL OF THE FLOWER OF PRESSURE TO OR AWAY FROM A DOUBLE-ACTING HYDRAULIC CYLINDER SE408816B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US457961A US3906980A (en) 1974-04-04 1974-04-04 Direction control valve embodying a sleeve-like pressure equalizing valve element

Publications (2)

Publication Number Publication Date
SE7503580L true SE7503580L (en) 1975-10-06
SE408816B SE408816B (en) 1979-07-09

Family

ID=23818764

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7503580A SE408816B (en) 1974-04-04 1975-03-26 HYDRAULIC VALVE FOR CONTROL OF THE FLOWER OF PRESSURE TO OR AWAY FROM A DOUBLE-ACTING HYDRAULIC CYLINDER

Country Status (8)

Country Link
US (1) US3906980A (en)
JP (1) JPS5833433B2 (en)
AR (1) AR209095A1 (en)
CA (1) CA1025324A (en)
DE (1) DE2513013C3 (en)
FR (1) FR2266812B1 (en)
GB (1) GB1457492A (en)
SE (1) SE408816B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096784A (en) * 1976-09-07 1978-06-27 Theodore Ongaro Hydraulic power system
ES2004356A6 (en) * 1986-12-26 1989-01-01 Hiac Valman S A Distributor for hydraulic cylinders.
US5038670A (en) * 1990-04-09 1991-08-13 Dynamic Valves, Inc. Pneumatic control valve apparatus
GB9512368D0 (en) * 1995-06-17 1995-08-16 Knorr Bremse Systeme Fluid pressure responsive governor valves
DE19522746A1 (en) * 1995-06-22 1997-01-02 Bosch Gmbh Robert Electro-hydraulic control device for a double-acting consumer
US5799485A (en) * 1995-06-22 1998-09-01 Robert Bosch Gmbh Electrohydraulic control device for double-acting consumer
EP1511954B1 (en) * 2002-06-12 2006-01-11 FSP Fluid Systems Partners Holding AG Screw-in valve
CN103352887B (en) * 2013-07-18 2015-08-19 武汉科技大学 A kind of single vane water pressure self-servo rotary valve
CN106662127B (en) 2014-05-01 2018-08-24 伊顿公司 Manual override control assembly
CN105042119A (en) * 2015-06-26 2015-11-11 合肥工业大学 Slicing-type manual multi-way reversal valve
CN111473007B (en) * 2020-04-26 2022-03-18 长江三峡通航管理局 Water delivery valve hydraulic system for emergency operation of ship lock and emergency valve closing operation method
CN113685387B (en) * 2021-07-19 2023-10-27 北京天玛智控科技股份有限公司 Pressure balanced water-based proportional directional valve
CN114484062B (en) * 2022-03-17 2024-02-27 浙江成达特种阀门有限公司 Four-way ball valve operating mechanism capable of avoiding misoperation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905702C (en) * 1951-04-18 1954-03-04 Rotenburger Metallwerke Rudolf Control device for hydraulic servomotors
US3631761A (en) * 1967-09-18 1972-01-04 Houdaille Industries Inc Hydraulic action devices with inertia insensitive snubbing circuit
CA930279A (en) * 1969-11-13 1973-07-17 Deere And Company Directional control valve

Also Published As

Publication number Publication date
DE2513013A1 (en) 1975-10-16
FR2266812B1 (en) 1977-04-15
DE2513013C3 (en) 1981-07-16
FR2266812A1 (en) 1975-10-31
DE2513013B2 (en) 1980-10-02
AR209095A1 (en) 1977-03-31
CA1025324A (en) 1978-01-31
SE408816B (en) 1979-07-09
JPS5833433B2 (en) 1983-07-19
GB1457492A (en) 1976-12-01
JPS50131127A (en) 1975-10-17
US3906980A (en) 1975-09-23

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