CA1031239A - Systeme hydraulique de levage - Google Patents

Systeme hydraulique de levage

Info

Publication number
CA1031239A
CA1031239A CA244,398A CA244398A CA1031239A CA 1031239 A CA1031239 A CA 1031239A CA 244398 A CA244398 A CA 244398A CA 1031239 A CA1031239 A CA 1031239A
Authority
CA
Canada
Prior art keywords
lifting system
hydraulic load
load lifting
hydraulic
load
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
CA244,398A
Other languages
English (en)
Inventor
Lawrence F. Schexnayder
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
Application granted granted Critical
Publication of CA1031239A publication Critical patent/CA1031239A/fr
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Operation Control Of Excavators (AREA)
CA244,398A 1975-05-27 1976-01-28 Systeme hydraulique de levage Expired CA1031239A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/581,297 US4000683A (en) 1975-05-27 1975-05-27 Hydraulic load lifting system

Publications (1)

Publication Number Publication Date
CA1031239A true CA1031239A (fr) 1978-05-16

Family

ID=24324639

Family Applications (1)

Application Number Title Priority Date Filing Date
CA244,398A Expired CA1031239A (fr) 1975-05-27 1976-01-28 Systeme hydraulique de levage

Country Status (8)

Country Link
US (1) US4000683A (fr)
JP (1) JPS51144002A (fr)
BE (1) BE840646A (fr)
BR (1) BR7602726A (fr)
CA (1) CA1031239A (fr)
DE (1) DE2612565A1 (fr)
FR (1) FR2312676A1 (fr)
GB (1) GB1482399A (fr)

Families Citing this family (17)

* 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
US4102250A (en) * 1976-08-16 1978-07-25 Caterpillar Tractor Co. Load check and bypass valve
IT1118648B (it) * 1979-05-18 1986-03-03 Chs Cinotto Giuseppe Hydraulic Dispositivo di sicurezza per circuiti idraulici particolarmente di scavatrici sollevatori e simili
WO1981001034A1 (fr) * 1979-10-15 1981-04-16 D Bianchetta Systeme de levage de charge hydraulique avec soupape de blocage automatique
US4286502A (en) * 1979-10-15 1981-09-01 Caterpillar Tractor Co. Hydraulic load lifting system with automatic blocking valve
US4355565A (en) * 1980-03-24 1982-10-26 Caterpillar Tractor Co. Fluid circuit with zero leak load check and by-pass valve
WO1982001042A1 (fr) * 1980-09-15 1982-04-01 D Bianchetta Soupape d'event pour clapet montee dans un cylindre
JPS5872776A (ja) * 1981-10-26 1983-04-30 Nissan Motor Co Ltd フオ−クリフトのダウンセ−フテイ装置
US4793238A (en) * 1987-07-01 1988-12-27 Caterpillar Inc. Control signal blocking direction control valve in load-sensing circuit
DE19607479A1 (de) * 1996-02-28 1997-09-04 Iveco Magirus Hydrauliksystem
DE19955750B4 (de) * 1999-11-11 2004-05-27 Demag Mobile Cranes Gmbh Verfahren zum Druckausgleich in Hydraulikmotoren zum Antrieb der Hub- und Schließseile eines Seilkranes
US9964428B2 (en) 2008-10-09 2018-05-08 Cascade Corporation Equalized hydraulic clamp force control
IT1398963B1 (it) * 2010-02-26 2013-03-28 Giuliano S P A Ora Giuliano Group S P A Sollevatore a colonne per veicoli
US8925439B2 (en) 2011-01-13 2015-01-06 Husco International, Inc. Valve control valve circuit for operating a single acting hydraulic cylinder
CN105605278A (zh) * 2015-08-13 2016-05-25 洛阳明创矿山冶金设备有限公司 一种用于中小型拖拉机液压提升系统的压力油流速控制阀
CN111828420B (zh) * 2020-07-08 2022-05-17 江苏汇智高端工程机械创新中心有限公司 一种液动力补偿平衡阀
CN113003501B (zh) * 2021-03-19 2022-06-24 湖南星邦智能装备股份有限公司 高空作业平台的浮动装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974637A (en) * 1957-12-30 1961-03-14 Western Electric Co Pneumatic two-hand control for power machinery
US3127688A (en) * 1962-12-26 1964-04-07 Caterpillar Tractor Co Hydraulic circuit for control of earthmoving scraper bowls
US3494491A (en) * 1966-10-29 1970-02-10 Mitsubishi Heavy Ind Ltd Materials handling vehicle
DE1922073A1 (de) * 1969-04-30 1971-01-21 Nabenfabrik Kg Alfing Kessler Verfahren und Schaltanordnung zur Verhinderung des Anfahrsprunges bei hydraulisch betaetigten Antrieben
US3728941A (en) * 1970-11-23 1973-04-24 Caterpillar Tractor Co Flow control valve
US3805678A (en) * 1972-04-17 1974-04-23 Caterpillar Tractor Co Hydraulic control system for load supporting hydraulic motors

Also Published As

Publication number Publication date
FR2312676A1 (fr) 1976-12-24
GB1482399A (en) 1977-08-10
DE2612565A1 (de) 1976-12-16
FR2312676B1 (fr) 1980-01-25
US4000683A (en) 1977-01-04
JPS51144002A (en) 1976-12-10
BE840646A (fr) 1976-10-12
BR7602726A (pt) 1977-02-15

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