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CA957042A - Electrically controlled hydraulic system and transducer therefor - Google Patents

Electrically controlled hydraulic system and transducer therefor

Info

Publication number
CA957042A
CA957042A CA131,668A CA131668A CA957042A CA 957042 A CA957042 A CA 957042A CA 131668 A CA131668 A CA 131668A CA 957042 A CA957042 A CA 957042A
Authority
CA
Canada
Prior art keywords
hydraulic system
electrically controlled
controlled hydraulic
transducer therefor
therefor
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
CA131,668A
Other versions
CA131668S (en
Inventor
Samuel A. Johnston
Henry J. Riedmayer
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.)
Bunker Ramo Corp
Original Assignee
Bunker Ramo Corp
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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Priority to CA196,670A priority Critical patent/CA971648A/en
Application granted granted Critical
Publication of CA957042A publication Critical patent/CA957042A/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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2853—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using potentiometers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
CA131,668A 1971-02-08 1972-01-04 Electrically controlled hydraulic system and transducer therefor Expired CA957042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA196,670A CA971648A (en) 1971-02-08 1974-04-02 Electrically controlled hydraulic system and transducer therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11319371A 1971-02-08 1971-02-08

Publications (1)

Publication Number Publication Date
CA957042A true CA957042A (en) 1974-10-29

Family

ID=22348070

Family Applications (1)

Application Number Title Priority Date Filing Date
CA131,668A Expired CA957042A (en) 1971-02-08 1972-01-04 Electrically controlled hydraulic system and transducer therefor

Country Status (8)

Country Link
US (1) US3726191A (en)
JP (1) JPS5521210B1 (en)
AU (1) AU464186B2 (en)
BE (1) BE777615A (en)
CA (1) CA957042A (en)
DE (1) DE2200245A1 (en)
FR (1) FR2124230B1 (en)
GB (1) GB1347923A (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2661086C2 (en) * 1976-12-24 1992-10-15 Beringer-Hydraulik Gmbh, Neuheim, Zug, Ch
DE2658928A1 (en) 1976-12-24 1978-07-06 Beringer Hydraulik Gmbh HYDRAULIC CONTROL
US4386552A (en) * 1980-06-16 1983-06-07 Foxwell W John Power cylinder with internally mounted position indicator
DE3036485A1 (en) * 1980-09-27 1982-05-19 Bergwerksverband Gmbh, 4300 Essen Hydraulic ram for mining machinery - has internal detector for length-measurement device between fixed and moving members
US4552055A (en) * 1981-02-09 1985-11-12 Prince Manufacturing Company Power cylinder with internally mounted position indicator
DE3122120A1 (en) * 1981-06-04 1983-01-05 Pierburg Gmbh & Co Kg, 4040 Neuss TRAVELER
DE3128486A1 (en) * 1981-07-18 1983-01-27 Pierburg Gmbh & Co Kg, 4040 Neuss "METHOD AND DEVICE FOR CONTROLLING A PNEUMATICALLY OPERATED SERVOMOTOR"
US4523514A (en) * 1981-09-08 1985-06-18 Deere & Company Position sensing cylinder
CA1180916A (en) * 1981-09-08 1985-01-15 Ronnie F. Burk Position-sensing cylinder
DE3207068C2 (en) * 1982-02-26 1994-02-24 Kaltenbach & Voigt Circuit arrangement for controlling the movement of an adjusting device, in particular a patient chair
EP0151323B2 (en) 1982-03-22 1995-05-17 Deere & Company Working depth control system for vehicle with ground working inplement
US4437385A (en) * 1982-04-01 1984-03-20 Deere & Company Electrohydraulic valve system
DE3240351A1 (en) * 1982-10-30 1984-05-03 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover PRESSURE-OPERATED WORK CYLINDER
SE436072B (en) * 1983-03-22 1984-11-05 Hara Ab POTENTIOMETER DEVICE FOR DETERMINATION OF PHYSICAL HYDRAULIC PISTONS AND SIMILAR
DE3317113A1 (en) 1983-05-10 1984-11-15 Knorr-Bremse GmbH, 8000 München POSITIONING DEVICE FOR PISTONLESS CYLINDERS
AT384899B (en) * 1984-09-17 1988-01-25 Hoerbiger Ventilwerke Ag CONTROL METHOD FOR A FLUID CYLINDER
DE3520199A1 (en) * 1984-10-05 1986-04-10 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover POTENTIOMETER
DE8508933U1 (en) * 1985-03-26 1985-07-04 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Pressure medium-operated push piston gear
US4664239A (en) * 1985-08-08 1987-05-12 Applied Power Inc. System for disabling, enabling and otherwise controlling vehicle functions based upon continuous measurement of clutch wear and clutch position
DE3637068A1 (en) * 1986-04-08 1987-12-23 Samson Ag PNEUMATIC DRIVE DEVICE FOR ACTUATORS OR THE LIKE
US4844685A (en) * 1986-09-03 1989-07-04 Clark Equipment Company Electronic bucket positioning and control system
US4737705A (en) * 1986-11-05 1988-04-12 Caterpillar Inc. Linear position sensor using a coaxial resonant cavity
US4803318A (en) * 1988-01-07 1989-02-07 Lymburner Robert K Proximity switch for a cylinder
US4879440A (en) * 1988-01-07 1989-11-07 Lymburner Robert K Proximity switch for a cylinder
DE3803268A1 (en) * 1988-02-04 1989-04-13 Bosch Gmbh Robert Measuring device for a working cylinder
DE3900086A1 (en) * 1989-01-03 1990-07-05 Norbert Kolb Adjusting device with a sensor for an implement, in particular a two-way turn-over plough
DE3907944A1 (en) * 1989-03-11 1990-09-13 Bochumer Eisen Heintzmann Actuating device with a cylinder and a piston guided in the cylinder
US4982652A (en) * 1989-05-19 1991-01-08 Blatt John A Fluid operated actuator with recessed position sensor and recessed end cap fastener
DE4105703A1 (en) * 1991-02-21 1992-08-27 Mannesmann Ag POTENTIOMETER DEVICE
GB9109572D0 (en) * 1991-05-02 1991-06-26 Eaton Corp Actuator control system for devices such as cluches
US5241278A (en) * 1991-07-05 1993-08-31 Caterpillar Inc. Radio frequency linear position sensor using two subsequent harmonics
US5238029A (en) * 1991-10-04 1993-08-24 Fanuc Robotics North America, Inc. Method and system for fluid transfer and non-contact sensor for use therein
US5438274A (en) * 1991-12-23 1995-08-01 Caterpillar Linear position sensor using a coaxial resonant cavity
US5182979A (en) * 1992-03-02 1993-02-02 Caterpillar Inc. Linear position sensor with equalizing means
US5390497A (en) * 1992-03-14 1995-02-21 Eaton Corporation Self-adjusting clutch actuator
US5325063A (en) * 1992-05-11 1994-06-28 Caterpillar Inc. Linear position sensor with means to eliminate spurians harmonic detections
US5710514A (en) * 1995-05-09 1998-01-20 Caterpillar, Inc. Hydraulic cylinder piston position sensing with compensation for piston velocity
US5617034A (en) * 1995-05-09 1997-04-01 Caterpillar Inc. Signal improvement in the sensing of hydraulic cylinder piston position using electromagnetic waves
US5608332A (en) * 1995-05-09 1997-03-04 Caterpillar Inc. Dynamic gain adjustment in electromagnetic wave hydraulic cylinder piston position sensing
US5943940A (en) * 1995-11-30 1999-08-31 Ab Volvo Indication means in a brake cylinder for a vehicle brake
US5886617A (en) * 1997-06-18 1999-03-23 Ingersoll-Rand Company Composite tube transducer cylinder
FR2794236B1 (en) * 1999-05-26 2006-06-16 Serta DEVICE FOR KNOWING THE POSITION AND FOR MEASURING THE MOVEMENT OF THE PISTON OR PISTON ROD IN THE CHAMBER OF A CYLINDER OF THE TYPE COMPRISING A LINEAR RECTILINE LINEAR POTENTIOMETRY SENSOR
US6216072B1 (en) 1999-11-23 2001-04-10 Deere & Company Hitch control system with adjustable slip response
US6725761B1 (en) 2002-09-30 2004-04-27 Prince Manufacturing Corporation Spooling device assembly for hydraulic cylinder and method of assembling same
DE202009004673U1 (en) * 2008-08-29 2010-01-28 Liebherr-Werk Ehingen Gmbh Piston-cylinder unit
US8347529B2 (en) * 2009-04-09 2013-01-08 Vermeer Manufacturing Company Machine attachment based speed control system
ATE550569T1 (en) * 2009-08-19 2012-04-15 Hemscheidt Fahrwerktech Gmbh HYDROPNEUMATIC PISTON ACCESSORY
US20150114192A1 (en) * 2013-10-24 2015-04-30 Poet Research, Inc. Pneumatic biomass coring machine
US11779501B2 (en) 2019-09-17 2023-10-10 Engle Dental Systems, LLC Traverse dental chair and a sensor assembly for monitoring positions thereof
CN111911466A (en) * 2020-07-22 2020-11-10 国家电网有限公司 A hydraulic control system with water inlet valve and working seal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160836A (en) * 1960-07-01 1964-12-08 Guerin Engineering Inc Electrohydraulic actuator
FR1382342A (en) * 1963-11-09 1964-12-18 Mitchell Hydraulics Ltd Improvements to mechanical control devices actuated by pressurized fluid
US3412391A (en) * 1964-10-31 1968-11-19 Gullick Ltd Pressure-fluid-operated devices and means for indicating the condition thereof
US3464318A (en) * 1966-06-03 1969-09-02 Moog Inc Servomechanism providing static load error washout
US3572214A (en) * 1968-12-04 1971-03-23 Ford Motor Co Vacuum motor adapted for use in a vehicle speed control mechanism

Also Published As

Publication number Publication date
GB1347923A (en) 1974-02-27
AU464186B2 (en) 1975-08-21
AU3698971A (en) 1973-06-21
US3726191A (en) 1973-04-10
FR2124230B1 (en) 1975-10-24
FR2124230A1 (en) 1972-09-22
DE2200245A1 (en) 1972-08-24
BE777615A (en) 1972-04-17
JPS5521210B1 (en) 1980-06-07

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