IT987094B - DIRECTIONAL CONTROL VALVES - Google Patents

DIRECTIONAL CONTROL VALVES

Info

Publication number
IT987094B
IT987094B IT23603/73A IT2360373A IT987094B IT 987094 B IT987094 B IT 987094B IT 23603/73 A IT23603/73 A IT 23603/73A IT 2360373 A IT2360373 A IT 2360373A IT 987094 B IT987094 B IT 987094B
Authority
IT
Italy
Prior art keywords
control valves
directional control
directional
valves
control
Prior art date
Application number
IT23603/73A
Other languages
Italian (it)
Original Assignee
Parker Hannifin Corp
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 Parker Hannifin Corp filed Critical Parker Hannifin Corp
Application granted granted Critical
Publication of IT987094B publication Critical patent/IT987094B/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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • 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
    • 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
    • Y10T137/263—Plural sensors for single bypass or relief valve
    • 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
    • Y10T137/2635—Pilot valve operated
    • 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
IT23603/73A 1972-05-05 1973-05-02 DIRECTIONAL CONTROL VALVES IT987094B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00250793A US3827453A (en) 1972-05-05 1972-05-05 Directional control valve

Publications (1)

Publication Number Publication Date
IT987094B true IT987094B (en) 1975-02-20

Family

ID=22949169

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23603/73A IT987094B (en) 1972-05-05 1973-05-02 DIRECTIONAL CONTROL VALVES

Country Status (8)

Country Link
US (1) US3827453A (en)
JP (1) JPS4954925A (en)
AU (1) AU5441773A (en)
CA (1) CA980656A (en)
DE (1) DE2320679A1 (en)
FR (1) FR2183825A1 (en)
GB (1) GB1425602A (en)
IT (1) IT987094B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902401A (en) * 1968-03-13 1975-09-02 Caterpillar Tractor Co Hydraulic flow amplifier valve
US3965921A (en) * 1972-06-08 1976-06-29 Abex Corporation Controlled opening pressure compensated flow control valve
US4062374A (en) * 1974-05-08 1977-12-13 Sperry Rand Limited Hydraulic valves and hydraulic systems
US4129987A (en) * 1977-10-17 1978-12-19 Gresen Manufacturing Company Hydraulic control system
DE3044144A1 (en) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden HYDROSTATIC DRIVE SYSTEM WITH ONE ADJUSTABLE PUMP AND SEVERAL CONSUMERS
EP0082617A1 (en) * 1981-12-07 1983-06-29 Fluid Controls, Inc. Flow regulating valve
US5067389A (en) * 1990-08-30 1991-11-26 Caterpillar Inc. Load check and pressure compensating valve
FR2689575B1 (en) * 1992-04-06 1994-07-08 Rexroth Sigma HYDRAULIC DISTRIBUTOR WITH PRESSURE COMPENSATION AND A MAXIMUM PRESSURE SELECTION FOR DRIVING A PUMP AND MULTIPLE HYDRAULIC CONTROL INCLUDING SUCH DISTRIBUTORS.
DE4234037C2 (en) * 1992-10-09 2001-03-22 Mannesmann Rexroth Ag Valve arrangement, in particular for mobile work equipment
DE4446144A1 (en) * 1994-12-23 1996-06-27 Bosch Gmbh Robert Hydraulic control in monoblock design from at least two interlinked electromagnetically actuated proportional directional control valve elements
US5699665A (en) * 1996-04-10 1997-12-23 Commercial Intertech Corp. Control system with induced load isolation and relief
US6431957B1 (en) 2000-01-25 2002-08-13 Parker-Hannifin Corporation Directional flow control valve with recirculation for chemical-mechanical polishing slurries
WO2009114407A1 (en) * 2008-03-10 2009-09-17 Parker-Hannifin Corporation Hydraulic system having multiple actuators and an associated control method
EP2525732B1 (en) * 2010-01-22 2019-03-06 CareFusion 2200, Inc. Hydraulic device including a spool valve and method of use thereof
GB2494902B (en) * 2011-09-23 2019-03-13 Parker Hannifin Mfg Uk Limited A valve with integrated pressure compensator
JP6338428B2 (en) * 2014-04-11 2018-06-06 Ｋｙｂ株式会社 Valve structure
CN104235107A (en) * 2014-09-18 2014-12-24 芜湖高昌液压机电技术有限公司 Shear-type lifting machine bypass reversing valve unloading loop
US10323762B2 (en) * 2016-04-21 2019-06-18 Parker-Hannifin Corporation Three-way pressure control and flow regulator valve
CN111734698B (en) * 2020-07-03 2022-04-08 中国矿业大学 Shunt motor speed change synchronization system capable of resisting time-varying large unbalance load and working method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US26338A (en) * 1859-12-06 Improvement in harvesters
US3008488A (en) * 1959-11-16 1961-11-14 New York Air Brake Co Control valve
US3145734A (en) * 1961-10-06 1964-08-25 Borg Warner Pressure compensated flow control valve
US3411416A (en) * 1965-01-29 1968-11-19 Eton Yale & Towne Inc Adjustable, metered, directional flow control arrangement
CH444601A (en) * 1966-12-13 1967-09-30 Beringer Hydraulik Gmbh Control device for hydraulically operated equipment
US3602104A (en) * 1969-07-08 1971-08-31 Eaton Yale & Towne Pressure-compensated flow control
US3631890A (en) * 1970-04-06 1972-01-04 Borg Warner Flow extending bypass valve
US3718159A (en) * 1971-01-20 1973-02-27 Hydraulic Industries Control valve

Also Published As

Publication number Publication date
FR2183825A1 (en) 1973-12-21
JPS4954925A (en) 1974-05-28
US3827453A (en) 1974-08-06
AU5441773A (en) 1974-10-17
CA980656A (en) 1975-12-30
DE2320679A1 (en) 1973-11-22
GB1425602A (en) 1976-02-18

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