IT8554176V0 - Sistema idraulico con controllo selettivo di un differenziale di pressione ad esempio per il comando di un dispositivo di innesto per autoveicoli e valvola modulatrice utilizzata in tale sistema - Google Patents

Sistema idraulico con controllo selettivo di un differenziale di pressione ad esempio per il comando di un dispositivo di innesto per autoveicoli e valvola modulatrice utilizzata in tale sistema

Info

Publication number
IT8554176V0
IT8554176V0 IT8554176U IT5417685U IT8554176V0 IT 8554176 V0 IT8554176 V0 IT 8554176V0 IT 8554176 U IT8554176 U IT 8554176U IT 5417685 U IT5417685 U IT 5417685U IT 8554176 V0 IT8554176 V0 IT 8554176V0
Authority
IT
Italy
Prior art keywords
commanding
connection device
pressure differential
motor vehicles
modulating valve
Prior art date
Application number
IT8554176U
Other languages
English (en)
Inventor
William Wayne 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 IT8554176V0 publication Critical patent/IT8554176V0/it

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
    • F16H61/04—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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D48/0206—Control by fluid pressure in a system with a plurality of fluid-actuated clutches
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0209—Control by fluid pressure characterised by fluid valves having control pistons, e.g. spools
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0221—Valves for clutch control systems; Details thereof
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0281—Complex circuits with more than two valves in series or special arrangements thereof not provided for in previous groups
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10412—Transmission line of a vehicle
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50239—Soft clutch engagement
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/51—Relating safety
    • F16D2500/5104—Preventing failures
    • F16D2500/5106—Overheat protection
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/702—Look-up tables
    • F16D2500/70205—Clutch actuator
    • F16D2500/70217—Pressure
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/702—Look-up tables
    • F16D2500/70205—Clutch actuator
    • F16D2500/70235—Displacement
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • F16D2500/70406—Pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Fluid Gearings (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)
IT8554176U 1984-12-10 1985-12-05 Sistema idraulico con controllo selettivo di un differenziale di pressione ad esempio per il comando di un dispositivo di innesto per autoveicoli e valvola modulatrice utilizzata in tale sistema IT8554176V0 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/679,723 US4583624A (en) 1984-12-10 1984-12-10 Fluid system with selective differential pressure control

Publications (1)

Publication Number Publication Date
IT8554176V0 true IT8554176V0 (it) 1985-12-05

Family

ID=24728084

Family Applications (2)

Application Number Title Priority Date Filing Date
IT68022/85A IT1185838B (it) 1984-12-10 1985-12-05 Sistema idraulico con controllo selettivo di un differenziale di pressione ed esempio per il comando di un dispositivo di innesto per autoveicoli e valvola modulatrice utilizzata in tale sistema
IT8554176U IT8554176V0 (it) 1984-12-10 1985-12-05 Sistema idraulico con controllo selettivo di un differenziale di pressione ad esempio per il comando di un dispositivo di innesto per autoveicoli e valvola modulatrice utilizzata in tale sistema

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT68022/85A IT1185838B (it) 1984-12-10 1985-12-05 Sistema idraulico con controllo selettivo di un differenziale di pressione ed esempio per il comando di un dispositivo di innesto per autoveicoli e valvola modulatrice utilizzata in tale sistema

Country Status (8)

Country Link
US (1) US4583624A (it)
EP (1) EP0207075A4 (it)
JP (1) JPS62501023A (it)
KR (1) KR870700127A (it)
BR (1) BR8507110A (it)
CA (1) CA1249498A (it)
IT (2) IT1185838B (it)
WO (1) WO1986003564A1 (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676348A (en) * 1986-03-06 1987-06-30 Caterpillar Inc. Fluid pressure control system having a timed pressure cutback device
US4676349A (en) * 1986-03-06 1987-06-30 Caterpillar Inc. Fluid pressure control system having a pressure cutback device
US4751866A (en) * 1986-10-03 1988-06-21 Caterpillar Inc. Ratio valve to control unloading of modulating relief valve
US4920861A (en) * 1989-03-21 1990-05-01 Caterpillar Inc. Load piston reset control mechanism
US5348627A (en) * 1993-05-12 1994-09-20 Georgia Tech Reserach Corporation Process and system for the photoelectrochemical etching of silicon in an anhydrous environment
DE19915557A1 (de) * 1999-04-07 2000-10-12 Zahnradfabrik Friedrichshafen Kupplungssystem in einem Getriebe
DE102006003517A1 (de) * 2006-01-24 2007-07-26 Borgwarner Inc., Auburn Hills Hydraulische Steuereinrichtung und Verfahren zur Ansteuerung zweier Aktuatoren
US20080053445A1 (en) * 2006-08-29 2008-03-06 Kroupa Kevin D Cardiopulminary resuscitation timer
JP2008175392A (ja) * 2007-01-18 2008-07-31 Borgwarner Inc 二重クラッチ車軸組立体
WO2009108654A2 (en) * 2008-02-25 2009-09-03 Clemson University Differential pressure pump system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025717A (en) * 1960-07-08 1962-03-20 Gen Motors Corp Transmission
US3389770A (en) * 1966-02-01 1968-06-25 Caterpillar Tractor Co Transmission hydraulic control
US3468194A (en) * 1967-05-10 1969-09-23 Caterpillar Tractor Co Hydraulic pressure modulating transmission control system
US3566716A (en) * 1969-07-22 1971-03-02 Int Harvester Co Clutch cylinder circuit and charging valve therefor
US3739807A (en) * 1972-03-27 1973-06-19 Gen Motors Corp Valving arrangement
US3998111A (en) * 1975-03-24 1976-12-21 Caterpillar Tractor Co. Fluid circuit for shifting a transmission
US4046160A (en) * 1976-02-02 1977-09-06 International Harvester Company Transmission clutches with sequence valve and piston-controlled pressure modulator
US4132302A (en) * 1976-06-07 1979-01-02 International Harvester Company Transmission clutches with fully-resetting modulator-load-piston
US4294278A (en) * 1979-12-14 1981-10-13 Caterpillar Tractor Co. Pressure modulating valve

Also Published As

Publication number Publication date
EP0207075A1 (en) 1987-01-07
CA1249498A (en) 1989-01-31
BR8507110A (pt) 1987-03-31
WO1986003564A1 (en) 1986-06-19
EP0207075A4 (en) 1987-04-28
JPS62501023A (ja) 1987-04-23
IT1185838B (it) 1987-11-18
KR870700127A (ko) 1987-03-14
US4583624A (en) 1986-04-22
IT8568022A0 (it) 1985-12-05

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