FR2303186A1 - Circuit pour limiter la course d'une charge supportee par un verin hydraulique - Google Patents

Circuit pour limiter la course d'une charge supportee par un verin hydraulique

Info

Publication number
FR2303186A1
FR2303186A1 FR7535510A FR7535510A FR2303186A1 FR 2303186 A1 FR2303186 A1 FR 2303186A1 FR 7535510 A FR7535510 A FR 7535510A FR 7535510 A FR7535510 A FR 7535510A FR 2303186 A1 FR2303186 A1 FR 2303186A1
Authority
FR
France
Prior art keywords
stroke
limiting
circuit
hydraulic cylinder
load supported
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.)
Granted
Application number
FR7535510A
Other languages
English (en)
Other versions
FR2303186B1 (fr
Inventor
Willard Junior Haak
Howard Arthur Marsden
James Robert Sturges
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 FR2303186A1 publication Critical patent/FR2303186A1/fr
Application granted granted Critical
Publication of FR2303186B1 publication Critical patent/FR2303186B1/fr
Granted 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)
FR7535510A 1975-03-05 1975-11-20 Circuit pour limiter la course d'une charge supportee par un verin hydraulique Granted FR2303186A1 (fr)

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 (2)

Publication Number Publication Date
FR2303186A1 true FR2303186A1 (fr) 1976-10-01
FR2303186B1 FR2303186B1 (fr) 1980-01-25

Family

ID=24218117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535510A Granted FR2303186A1 (fr) 1975-03-05 1975-11-20 Circuit pour limiter la course d'une charge supportee par un verin hydraulique

Country Status (8)

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

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
GB2300627B (en) * 1995-05-06 1997-06-18 Ajax Equip Ltd Bulk storage hoppers
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (1)

* 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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
US3972267A (en) 1976-08-03
FR2303186B1 (fr) 1980-01-25
CA1028598A (fr) 1978-03-28
GB1493288A (en) 1977-11-30
JPS51109662A (fr) 1976-09-28
BE838315A (nl) 1976-08-06
BR7600077A (pt) 1976-09-14
DE2608988A1 (de) 1976-09-16

Similar Documents

Publication Publication Date Title
FR2303186A1 (fr) Circuit pour limiter la course d'une charge supportee par un verin hydraulique
DK140371C (da) Hydraulisk kranmekanisme
FR1507468A (fr) Dispositif d'équilibrage de charge pour vérin hydraulique
BE822393A (fr) Verin telescopique
FR2336578A1 (fr) Dispositif pour reduire l'usure par cavitation
BE840646A (fr) Systeme d'elevation de charge hydraulique
IT1016532B (it) Dispositivo per il controllo di un cilindro idraulico di sollevamento
BE815568R (fr) Garniture d'etancheite pour pistons
BE752173A (fr) Commutateur sous charge pour interrupteur a gradins de transformateurs de reglage
FR2301474A1 (fr) Dispositif pour l'egalisation de la charge des essieux d'une grue automotrice
SU576021A3 (ru) Установка дл непрерывной разливки металлов
FR2279658A1 (fr) Verin hydraulique
BE858071A (fr) Projectile pour la dispersion d'une charge
FR2304777A1 (fr) Refroidissement par un liquide pour le piston d'un moteur a piston rotatif
FR2297102A1 (fr) Mecanisme pour regler la phase des cylindres a matrice d'une machine travaillant par roulage
SE7614322L (sv) Oljeskrapkolvring
BE866011A (fr) Perfectionnements aux dispositifs d'activation pour charge largable
BE816150A (fr) Agencement pour regler la charge d'un systeme de turbine
BE805912A (fr) Structure d'electrode pour installation d'electroclimatisation
IT1073872B (it) Cilindro idraulico con cilindro di ritorno solidale
FR2291423A1 (fr) Piston d'etancheite pour verin de manoeuvre
BE820430A (fr) Dispositif pour briser la masselotte d'une piece coulee en metal
BE831729A (fr) Fleche telescopique de grue munie de matins d'usure pousses par des ressorts
FR2306354A1 (fr) Verin hydraulique de traction
FR2321643A2 (fr) Piston d'etancheite pour verin de manoeuvre

Legal Events

Date Code Title Description
ST Notification of lapse