CA1001927A - 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
CA1001927A
CA1001927A CA198,213A CA198213A CA1001927A CA 1001927 A CA1001927 A CA 1001927A CA 198213 A CA198213 A CA 198213A CA 1001927 A CA1001927 A CA 1001927A
Authority
CA
Canada
Prior art keywords
control circuit
shock absorbing
implement control
absorbing system
selectively actuatable
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
CA198,213A
Inventor
Joseph E. Dezelan
John A. Junck
Walter I. Nelson
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 CA1001927A publication Critical patent/CA1001927A/en
Expired legal-status Critical Current

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)
CA198,213A 1973-05-02 1974-04-26 Selectively actuatable shock absorbing system for an implement control circuit Expired CA1001927A (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
CA1001927A true CA1001927A (en) 1976-12-21

Family

ID=23401159

Family Applications (1)

Application Number Title Priority Date Filing Date
CA198,213A Expired CA1001927A (en) 1973-05-02 1974-04-26 Selectively actuatable shock absorbing system for an implement control circuit

Country Status (7)

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

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
JPS56501057A (en) * 1979-08-30 1981-07-30
US4341149A (en) * 1979-08-30 1982-07-27 Caterpillar Tractor Co. Selectively actuatable fluid control system for a work element
FI60429C (en) * 1980-06-05 1982-01-11 Tampella Oy Ab HYDRAULIC KOLVCYLINDERANORDNING MED SITT VENTILORGAN
DE3206162A1 (en) * 1982-02-20 1983-09-01 Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim DRIVE FOR A MOVABLE DIMENSION BY MEANS OF A HYDROMOTOR
SE456682B (en) * 1987-06-26 1988-10-24 Maskin Ab Tube SETTING AND DEVICE FOR CONSTANT PRESSURE ADJUSTMENT OF A ROAD SHEET
DE3739525A1 (en) * 1987-11-21 1989-06-01 Orenstein & Koppel Ag PLANING VEHICLE
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
JP3162384B2 (en) * 1991-09-04 2001-04-25 オー ウント カー オーレンスタイン ウント コツペル アクチエンゲゼルシヤフト Hydraulic devices for working machines with working devices
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 (en) 2010-02-19 2011-09-01 Seiko Epson Corp Actuator
CN102295154B (en) * 2011-06-08 2012-12-26 徐州五洋科技股份有限公司 Electro-hydraulic control system for disc-type braking device of declining belt conveyor
CN103129919B (en) * 2013-03-12 2015-05-20 太原理工大学 Electro-hydraulic control system of disc type braking device of mine belt conveyor
CN106224423B (en) * 2016-10-14 2018-10-23 北京汽车研究总院有限公司 A kind of vehicle vibration reduction system
US20200399859A1 (en) * 2019-06-18 2020-12-24 Deere & Company Hydraulic Accumulator Assembly
CN113494488B (en) * 2020-04-03 2022-07-19 广东博智林机器人有限公司 Hydraulic control valve group and servo valve control cylinder system

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
JPS5525281B2 (en) 1980-07-04
JPS5747047A (en) 1982-03-17
JPS5013785A (en) 1975-02-13
AU6844874A (en) 1975-11-06
GB1421878A (en) 1976-01-21
BE814490A (en) 1974-11-04
ZA742721B (en) 1975-05-28
BR7403230D0 (en) 1974-11-19
US3872670A (en) 1975-03-25

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