GB1493288A - Control circuit for hydraulic machine - Google Patents

Control circuit for hydraulic machine

Info

Publication number
GB1493288A
GB1493288A GB43642/75A GB4364275A GB1493288A GB 1493288 A GB1493288 A GB 1493288A GB 43642/75 A GB43642/75 A GB 43642/75A GB 4364275 A GB4364275 A GB 4364275A GB 1493288 A GB1493288 A GB 1493288A
Authority
GB
United Kingdom
Prior art keywords
valve
ram
pressure
spool
valves
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
GB43642/75A
Other languages
English (en)
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1493288A publication Critical patent/GB1493288A/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
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7782—With manual or external control for line 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
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87201—Common to plural valve motor chambers
    • 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
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
GB43642/75A 1975-03-05 1975-10-23 Control circuit for hydraulic machine Expired GB1493288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/555,656 US3972267A (en) 1975-03-05 1975-03-05 Overruning load control for hydraulic jacks

Publications (1)

Publication Number Publication Date
GB1493288A true GB1493288A (en) 1977-11-30

Family

ID=24218117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43642/75A Expired GB1493288A (en) 1975-03-05 1975-10-23 Control circuit for hydraulic machine

Country Status (8)

Country Link
US (1) US3972267A (enExample)
JP (1) JPS51109662A (enExample)
BE (1) BE838315A (enExample)
BR (1) BR7600077A (enExample)
CA (1) CA1028598A (enExample)
DE (1) DE2608988A1 (enExample)
FR (1) FR2303186A1 (enExample)
GB (1) GB1493288A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300627A (en) * 1995-05-06 1996-11-13 Ajax Equip Ltd Bulk Storage Hoppers

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312675B1 (fr) * 1975-05-29 1977-12-09 Bennes Marrel Sa Dispositif de commande d'un gros distributeur hydraulique, notamment pour engins de travaux publics
US4250794A (en) * 1978-03-31 1981-02-17 Caterpillar Tractor Co. High pressure hydraulic system
US4204459A (en) * 1978-04-19 1980-05-27 Caterpillar Tractor Co. Combination check and flow control valve for hydraulic systems
US4206688A (en) * 1978-06-09 1980-06-10 Caterpillar Tractor Co. Overrunning load control for hydraulic motors
FR2452353A1 (fr) * 1979-03-28 1980-10-24 Outillage Air Comprime Dispositif de commande hydraulique d'une unite d'usinage a avances multiples
US4418612A (en) * 1981-05-28 1983-12-06 Vickers, Incorporated Power transmission
US4611527A (en) * 1982-02-08 1986-09-16 Vickers, Incorporated Power transmission
JPS5917074A (ja) * 1982-07-16 1984-01-28 Hitachi Constr Mach Co Ltd ロジツク弁
US4503886A (en) * 1983-05-12 1985-03-12 Lockheed Corporation Flow limiting selector valve
JPS62297511A (ja) * 1986-06-17 1987-12-24 Honda Motor Co Ltd 作業用車両の油圧装置
US5170692A (en) * 1991-11-04 1992-12-15 Vickers, Incorporated Hydraulic control system
US6038957A (en) * 1995-12-15 2000-03-21 Commercial Intertech Limited Control valves
FI100677B (fi) 1996-09-13 1998-01-30 Multilift Oy Menetelmä hydraulisesti käytetyn koneen liikenopeuden ohjaamiseksi, hy draulisesti käytetyn koneen käyttöjärjestelmä ja ohjauslaitteisto
US6742767B1 (en) * 2003-03-17 2004-06-01 Spx Corporation Floor jack apparatus and method
US20060127254A1 (en) * 2004-10-29 2006-06-15 Travis Bakker Hydraulic hand pump
FR2903855B1 (fr) * 2006-07-20 2010-12-24 Pellenc Iberica Sl Pince vibrante a force de serrage adaptable, pour la recolte de fruits
CN100595126C (zh) * 2006-12-08 2010-03-24 周浩良 一种负载缓释的液压千斤顶油泵回路
US20090032746A1 (en) * 2007-07-31 2009-02-05 Caterpillar Inc. Piezo-electric actuated valve
DE102022118889A1 (de) * 2022-07-27 2024-02-01 Liebherr-Aerospace Lindenberg Gmbh Ventil und Luftfahrzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157707A (en) * 1936-01-10 1939-05-09 Ex Cell O Corp Hydraulic control valve
US3800670A (en) * 1969-10-21 1974-04-02 Caterpillar Tractor Co High pressure implement hydraulic circuit
FR2307154A1 (fr) * 1975-04-07 1976-11-05 Bennes Marrel Gros distributeur hydraulique, notamment pour engins de travaux publics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300627A (en) * 1995-05-06 1996-11-13 Ajax Equip Ltd Bulk Storage Hoppers
GB2300627B (en) * 1995-05-06 1997-06-18 Ajax Equip Ltd Bulk storage hoppers

Also Published As

Publication number Publication date
FR2303186B1 (enExample) 1980-01-25
FR2303186A1 (fr) 1976-10-01
CA1028598A (en) 1978-03-28
JPS51109662A (enExample) 1976-09-28
DE2608988A1 (de) 1976-09-16
US3972267A (en) 1976-08-03
BR7600077A (pt) 1976-09-14
BE838315A (nl) 1976-08-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee