GB1508642A - Hydrostatic transmission control system - Google Patents

Hydrostatic transmission control system

Info

Publication number
GB1508642A
GB1508642A GB3721876A GB3721876A GB1508642A GB 1508642 A GB1508642 A GB 1508642A GB 3721876 A GB3721876 A GB 3721876A GB 3721876 A GB3721876 A GB 3721876A GB 1508642 A GB1508642 A GB 1508642A
Authority
GB
United Kingdom
Prior art keywords
transmission control
hydrostatic transmission
control system
feb
heading
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
GB3721876A
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.)
Eaton Corp
Original Assignee
Eaton 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
Priority claimed from US446658A external-priority patent/US3901031A/en
Priority claimed from US511212A external-priority patent/US3924410A/en
Application filed by Eaton Corp filed Critical Eaton Corp
Publication of GB1508642A publication Critical patent/GB1508642A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/431—Pump capacity control by electro-hydraulic control means, e.g. using solenoid valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

1508642 Hydrostatic transmission control EATON CORP 11 Feb 1975 [28 Feb 1974 2 Oct 1974] 37218/76 Divided out of 1508641 Heading F2W The subject-matter of this Specification is identical with that described in Parent Specification, but the claims are directed to the pilot valves which effect operation of the main control valve and provide varying rates of pump and/or motor displacement.
GB3721876A 1974-02-28 1975-02-11 Hydrostatic transmission control system Expired GB1508642A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US446658A US3901031A (en) 1974-02-28 1974-02-28 Hydrostatic transmission control system
US511212A US3924410A (en) 1974-10-02 1974-10-02 Hydrostatic transmission control system

Publications (1)

Publication Number Publication Date
GB1508642A true GB1508642A (en) 1978-04-26

Family

ID=27034698

Family Applications (3)

Application Number Title Priority Date Filing Date
GB3721976A Expired GB1508643A (en) 1974-02-28 1975-02-11 Hydrostatic transmission control system
GB578075A Expired GB1508641A (en) 1974-02-28 1975-02-11 Hydrostatic transmission control system
GB3721876A Expired GB1508642A (en) 1974-02-28 1975-02-11 Hydrostatic transmission control system

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB3721976A Expired GB1508643A (en) 1974-02-28 1975-02-11 Hydrostatic transmission control system
GB578075A Expired GB1508641A (en) 1974-02-28 1975-02-11 Hydrostatic transmission control system

Country Status (5)

Country Link
JP (1) JPS581310B2 (en)
BR (1) BR7501248A (en)
DE (1) DE2508204A1 (en)
GB (3) GB1508643A (en)
IT (1) IT1033212B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050318A2 (en) * 1980-10-17 1982-04-28 Hitachi Construction Machinery Co., Ltd. Control method and control system for hydrostatic drive system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282711A (en) * 1979-07-26 1981-08-11 Deere & Company Hydrostatic transmission control system
US4285639A (en) * 1979-06-12 1981-08-25 Parker-Hannifin Corporation Electronic control for variable displacement pumps
MX152961A (en) * 1979-07-26 1986-07-09 Deere & Co IMPROVEMENTS TO HYDROSTATIC TRANSMISSION CONTROL DEVICE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152861B (en) * 1959-04-07 1963-08-14 Konstruktion Zek Hydraulik Electro-hydraulic remote adjustment device for hydraulic gears and pumps
US3628330A (en) * 1970-03-16 1971-12-21 Caterpillar Tractor Co Speed-programmed friction welder control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050318A2 (en) * 1980-10-17 1982-04-28 Hitachi Construction Machinery Co., Ltd. Control method and control system for hydrostatic drive system
EP0050318A3 (en) * 1980-10-17 1983-03-16 Hitachi Construction Machinery Co., Ltd. Control method and control system for hydrostatic drive system

Also Published As

Publication number Publication date
GB1508643A (en) 1978-04-26
BR7501248A (en) 1976-07-06
IT1033212B (en) 1979-07-10
JPS581310B2 (en) 1983-01-11
GB1508641A (en) 1978-04-26
DE2508204A1 (en) 1975-09-04
JPS50124056A (en) 1975-09-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee