CA945867A - Control valves - Google Patents

Control valves

Info

Publication number
CA945867A
CA945867A CA144,363A CA144363A CA945867A CA 945867 A CA945867 A CA 945867A CA 144363 A CA144363 A CA 144363A CA 945867 A CA945867 A CA 945867A
Authority
CA
Canada
Prior art keywords
control valves
valves
control
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
CA144,363A
Other versions
CA144363S (en
Inventor
Robert F. Hodgson
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.)
Commercial Shearing Inc
Original Assignee
Commercial Shearing Inc
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 Commercial Shearing Inc filed Critical Commercial Shearing Inc
Application granted granted Critical
Publication of CA945867A publication Critical patent/CA945867A/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
    • 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
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • 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
    • Y10T137/87185—Controlled by supply or exhaust valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
CA144,363A 1971-09-24 1972-06-09 Control valves Expired CA945867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18353571A 1971-09-24 1971-09-24

Publications (1)

Publication Number Publication Date
CA945867A true CA945867A (en) 1974-04-23

Family

ID=22673216

Family Applications (1)

Application Number Title Priority Date Filing Date
CA144,363A Expired CA945867A (en) 1971-09-24 1972-06-09 Control valves

Country Status (9)

Country Link
US (1) US3707988A (en)
JP (1) JPS54534B2 (en)
AU (1) AU463933B2 (en)
BR (1) BR7205811D0 (en)
CA (1) CA945867A (en)
DE (1) DE2228040A1 (en)
FR (1) FR2153230B1 (en)
GB (1) GB1382508A (en)
IT (1) IT958453B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330630Y2 (en) * 1974-01-17 1978-07-31
CA1030040A (en) * 1975-01-13 1978-04-25 Commercial Shearing Compensated work port fluid valves
US4187877A (en) * 1975-01-13 1980-02-12 Commercial Shearing Inc. Compensated work port fluid valves
ZA771041B (en) * 1976-05-06 1977-12-28 Commercial Shearing Control valves
US4109561A (en) * 1976-11-26 1978-08-29 Caterpillar Tractor Co. Control valve arrangement with a preconditioned relief valve and a flow force compensated valve spool
JPS5940465B2 (en) * 1977-11-28 1984-10-01 茂徳 工藤 golf practice equipment
US4343152A (en) * 1980-05-16 1982-08-10 Caterpillar Tractor Co. Load sensing porting arrangement
WO1981003362A1 (en) * 1980-05-16 1981-11-26 Habiger C Load sensing porting arrangement
US4646786A (en) * 1985-10-17 1987-03-03 Pneumo Corporation Fluid control valves with angled metering ports
US4779419A (en) * 1985-11-12 1988-10-25 Caterpillar Inc. Adjustable flow limiting pressure compensated flow control
US5471839A (en) * 1989-03-24 1995-12-05 Hitachi Construction Machinery Co., Ltd. Valve apparatus and hydraulic drive system
EP0438606A4 (en) * 1989-08-16 1993-07-28 Hitachi Construction Machinery Co., Ltd. Valve device and hydraulic circuit device
JP2557000B2 (en) * 1990-05-15 1996-11-27 株式会社小松製作所 Control valve device
JPH0768962B2 (en) * 1990-06-22 1995-07-26 株式会社ゼクセル Directional switching valve with load sensing function
KR100531898B1 (en) * 2003-03-11 2005-11-29 엘지전자 주식회사 Compression coil spring and reciprocating compressor with this
FR2857704B1 (en) * 2003-07-16 2007-12-28 Bosch Rexroth Dsi Sas HYDRAULIC DISTRIBUTOR WITH TORQUE SLOTS
CN100348352C (en) * 2006-01-25 2007-11-14 杨秀勇 Machining process of plane sliding pair structure for hydraulic control valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160174A (en) * 1961-03-28 1964-12-08 Parker Hannifin Corp Remote power shift circuits for spool valves and the like
US3482600A (en) * 1968-03-04 1969-12-09 Commercial Shearing Hollow slide valves
US3602243A (en) * 1969-07-07 1971-08-31 Eaton Yale & Towne Pressure compensated multifunction control valve

Also Published As

Publication number Publication date
AU463933B2 (en) 1975-08-07
DE2228040A1 (en) 1973-03-29
FR2153230B1 (en) 1976-08-06
BR7205811D0 (en) 1973-08-30
FR2153230A1 (en) 1973-05-04
US3707988A (en) 1973-01-02
GB1382508A (en) 1975-02-05
JPS54534B2 (en) 1979-01-11
IT958453B (en) 1973-10-20
AU4356872A (en) 1974-01-03
JPS4840027A (en) 1973-06-12

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