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BR7508774A - Circuito de comando hidraulico de uma transmissao - Google Patents

Circuito de comando hidraulico de uma transmissao

Info

Publication number
BR7508774A
BR7508774A BR7508774*A BR7508774A BR7508774A BR 7508774 A BR7508774 A BR 7508774A BR 7508774 A BR7508774 A BR 7508774A BR 7508774 A BR7508774 A BR 7508774A
Authority
BR
Brazil
Prior art keywords
transmission
control circuit
hydraulic control
hydraulic
circuit
Prior art date
Application number
BR7508774*A
Other languages
English (en)
Inventor
C Holzinger
W Blake
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 BR7508774A publication Critical patent/BR7508774A/pt

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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0262—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 characterised by the signals used the signals being hydraulic
    • F16H61/0265—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
    • F16H61/0272—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals characterised by initiating reverse gearshift
    • 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
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
BR7508774*A 1975-02-10 1975-12-31 Circuito de comando hidraulico de uma transmissao BR7508774A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/548,719 US3990553A (en) 1975-02-10 1975-02-10 Transmission control system with improved modulating valve

Publications (1)

Publication Number Publication Date
BR7508774A true BR7508774A (pt) 1976-08-24

Family

ID=24190116

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7508774*A BR7508774A (pt) 1975-02-10 1975-12-31 Circuito de comando hidraulico de uma transmissao

Country Status (4)

Country Link
US (1) US3990553A (pt)
BR (1) BR7508774A (pt)
CA (1) CA1036840A (pt)
ZA (1) ZA755676B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046160A (en) * 1976-02-02 1977-09-06 International Harvester Company Transmission clutches with sequence valve and piston-controlled pressure modulator
US4294278A (en) * 1979-12-14 1981-10-13 Caterpillar Tractor Co. Pressure modulating valve
US4422536A (en) * 1981-05-08 1983-12-27 Deere & Company Transmission control system with improved modulation rate regulating valve
IT1152822B (it) * 1982-09-09 1987-01-14 F M C S P A Apparecchiatura per il controllo a distanza dei movimenti di una gru
US4729408A (en) * 1985-07-12 1988-03-08 Caterpillar Inc. Control system for independent control of fluid actuated devices
DE3532473A1 (de) * 1985-09-11 1987-03-19 Rexroth Mannesmann Gmbh Hydraulische lastgetriebesteuerung fuer die vorwaerts-rueckwaerts-schaltung
US4742731A (en) * 1986-12-18 1988-05-10 Payhauler Corp. Transmission range selector valve
US4871048A (en) * 1987-09-21 1989-10-03 Dresser Industries, Inc. Control system for vehicle transmissions
US4924983A (en) * 1987-12-10 1990-05-15 Kubota, Ltd. Propelling clutch apparatus for a working vehicle
GB2235262B (en) * 1989-07-21 1993-09-29 Kubota Kk Hydraulically controllable transmission
US6729454B2 (en) 2002-05-06 2004-05-04 Deere & Company Transmission with a two-step actuator valve
ITMO20070097A1 (it) * 2007-03-20 2008-09-21 Safim S P A "apparato idraulico"
US9539406B2 (en) * 2013-09-10 2017-01-10 General Electric Company Interface device and method for supplying gas flow for subject breathing and apparatus for supplying anesthetic agent to the interface device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137311A (en) * 1962-07-02 1964-06-16 Caterpillar Tractor Co Manually operated modulation valve
US3468194A (en) * 1967-05-10 1969-09-23 Caterpillar Tractor Co Hydraulic pressure modulating transmission control system
US3882980A (en) * 1973-04-27 1975-05-13 Caterpillar Tractor Co Transmission control system with dual purpose modulating

Also Published As

Publication number Publication date
AU8562275A (en) 1977-04-21
US3990553A (en) 1976-11-09
ZA755676B (en) 1976-09-29
USB548719I5 (pt) 1976-02-17
CA1036840A (en) 1978-08-22

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