ZA742721B - Selectively actuatable shock absorbing system for an implement control circuit - Google Patents

Selectively actuatable shock absorbing system for an implement control circuit

Info

Publication number
ZA742721B
ZA742721B ZA00742721A ZA742721A ZA742721B ZA 742721 B ZA742721 B ZA 742721B ZA 00742721 A ZA00742721 A ZA 00742721A ZA 742721 A ZA742721 A ZA 742721A ZA 742721 B ZA742721 B ZA 742721B
Authority
ZA
South Africa
Prior art keywords
control circuit
shock absorbing
implement control
absorbing system
selectively actuatable
Prior art date
Application number
ZA00742721A
Other languages
English (en)
Inventor
W Nelson
J Dezelan
J Junck
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 ZA742721B publication Critical patent/ZA742721B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Damping Devices (AREA)
ZA00742721A 1973-05-02 1974-04-30 Selectively actuatable shock absorbing system for an implement control circuit ZA742721B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356362A US3872670A (en) 1973-05-02 1973-05-02 Selectively actuatable shock absorbing system for an implement control circuit

Publications (1)

Publication Number Publication Date
ZA742721B true ZA742721B (en) 1975-05-28

Family

ID=23401159

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00742721A ZA742721B (en) 1973-05-02 1974-04-30 Selectively actuatable shock absorbing system for an implement control circuit

Country Status (7)

Country Link
US (1) US3872670A (xx)
JP (2) JPS5525281B2 (xx)
BE (1) BE814490A (xx)
BR (1) BR7403230D0 (xx)
CA (1) CA1001927A (xx)
GB (1) GB1421878A (xx)
ZA (1) ZA742721B (xx)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034815A (en) * 1975-03-20 1977-07-12 Caterpillar Tractor Co. Blade lift float circuit for motor graders
US4026468A (en) * 1975-08-14 1977-05-31 Mccord Corporation Headlamp cleaning assembly
US4024796A (en) * 1975-09-24 1977-05-24 Caterpillar Tractor Co. Float control electrical circuit for a blade
US4286432A (en) * 1979-08-30 1981-09-01 Caterpillar Tractor Co. Lock valve with variable length piston and hydraulic system for a work implement using the same
JPS56501058A (xx) * 1979-08-30 1981-07-30
FI60429C (fi) * 1980-06-05 1982-01-11 Tampella Oy Ab Hydraulisk kolvcylinderanordning med sitt ventilorgan
DE3206162A1 (de) * 1982-02-20 1983-09-01 Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim Antrieb fuer eine mittels eines hydromotors bewegbaren masse
SE456682B (sv) * 1987-06-26 1988-10-24 Maskin Ab Tube Saett och anordning foer konstanttryckreglering av ett vaeghyvelblad
DE3739525A1 (de) * 1987-11-21 1989-06-01 Orenstein & Koppel Ag Planierfahrzeug
US4949802A (en) * 1988-10-25 1990-08-21 Deere & Company Hydraulic steering systems dampening devices
WO1990005814A1 (en) * 1988-11-23 1990-05-31 A & T Hansson Konsult Ab Shock absorbing device for a mobile machine
US5046311A (en) * 1989-12-14 1991-09-10 Cartner Jack O Hydraulic control system
US5147172A (en) * 1991-09-03 1992-09-15 Caterpillar Inc. Automatic ride control
ATE150508T1 (de) * 1991-09-04 1997-04-15 Orenstein & Koppel Ag Hydraulisches schwingungsdämpfungssystem für mit arbeitsgeräten versehene arbeitsmaschinen
US5596823A (en) * 1995-12-12 1997-01-28 Caterpillar Inc. Hydraulic system for a double acting cylinder
US5718115A (en) * 1996-05-31 1998-02-17 Aim, Inc. Constant force hydraulic control system
EP1914353A3 (en) 2006-10-19 2011-04-20 Hitachi Construction Machinery Co., Ltd. Construction machine
US20090057045A1 (en) * 2007-08-29 2009-03-05 Cnh America Llc Hydraulic system to deter lift arm chatter
JP2011169425A (ja) 2010-02-19 2011-09-01 Seiko Epson Corp アクチュエーター
CN102295154B (zh) * 2011-06-08 2012-12-26 徐州五洋科技股份有限公司 一种下运带式输送机盘式制动装置用电液控制系统
CN103129919B (zh) * 2013-03-12 2015-05-20 太原理工大学 矿井带式输送机盘式制动装置电液控制系统
CN106224423B (zh) * 2016-10-14 2018-10-23 北京汽车研究总院有限公司 一种车辆减振系统
US20200399859A1 (en) * 2019-06-18 2020-12-24 Deere & Company Hydraulic Accumulator Assembly
CN113494488B (zh) * 2020-04-03 2022-07-19 广东博智林机器人有限公司 一种液压控制阀组和伺服阀控缸系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2001620A (en) * 1934-03-27 1935-05-14 Inv S Aeronautiques Et Mechani Retractable landing gear for aeroplanes
US2147536A (en) * 1936-11-10 1939-02-14 Siam Retractable landing gear for airplanes
US3381587A (en) * 1965-09-10 1968-05-07 Deere & Co Hydraulic control system
US3385169A (en) * 1965-09-30 1968-05-28 Bell Telephone Labor Inc Hydraulic system for maintaining the position of a fluid motor

Also Published As

Publication number Publication date
BR7403230D0 (pt) 1974-11-19
US3872670A (en) 1975-03-25
BE814490A (fr) 1974-11-04
JPS5747047A (en) 1982-03-17
AU6844874A (en) 1975-11-06
GB1421878A (en) 1976-01-21
CA1001927A (en) 1976-12-21
JPS5013785A (xx) 1975-02-13
JPS5525281B2 (xx) 1980-07-04

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