IT1212772B - Valvola modulatrice e riduttrice di pressione. - Google Patents

Valvola modulatrice e riduttrice di pressione.

Info

Publication number
IT1212772B
IT1212772B IT8322528A IT2252883A IT1212772B IT 1212772 B IT1212772 B IT 1212772B IT 8322528 A IT8322528 A IT 8322528A IT 2252883 A IT2252883 A IT 2252883A IT 1212772 B IT1212772 B IT 1212772B
Authority
IT
Italy
Prior art keywords
bore
valve
reducing valve
clutch control
hydraulic clutch
Prior art date
Application number
IT8322528A
Other languages
English (en)
Other versions
IT8322528A0 (it
Inventor
Wayne Blake William
Robert Coutant Alan
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 IT8322528A0 publication Critical patent/IT8322528A0/it
Application granted granted Critical
Publication of IT1212772B publication Critical patent/IT1212772B/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D48/04—Control by fluid pressure providing power assistance
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure control
    • 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
    • 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
    • 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

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 Pressure (AREA)
IT8322528A 1982-08-23 1983-08-12 Valvola modulatrice e riduttrice di pressione. IT1212772B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41073982A 1982-08-23 1982-08-23
PCT/US1983/001008 WO1984000794A1 (en) 1982-08-23 1983-07-01 Pressure modulating and reducing valve

Publications (2)

Publication Number Publication Date
IT8322528A0 IT8322528A0 (it) 1983-08-12
IT1212772B true IT1212772B (it) 1989-11-30

Family

ID=23626024

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8322528A IT1212772B (it) 1982-08-23 1983-08-12 Valvola modulatrice e riduttrice di pressione.

Country Status (5)

Country Link
EP (1) EP0116570B1 (it)
JP (1) JPS59501556A (it)
DE (1) DE3374892D1 (it)
IT (1) IT1212772B (it)
WO (1) WO1984000794A1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE144587T1 (de) * 1983-12-02 1985-12-05 Trw Inc., Cleveland, Ohio Drucksteuerapparat.
JPH0214693Y2 (it) * 1984-09-29 1990-04-20
JPH085394Y2 (ja) * 1988-05-11 1996-02-14 株式会社小松製作所 クラッチ油圧制御装置
DE4414165A1 (de) * 1994-04-22 1995-10-26 Zahnradfabrik Friedrichshafen Drucksteuereinrichtung
DE19820389B4 (de) * 1997-05-14 2008-09-11 Volkswagen Ag Kupplungsdruck-Steuerventil
US6179107B1 (en) * 1999-11-08 2001-01-30 General Motors Corporation Trim valve for a fluid operated friction torque transmitting device
EP1635071A2 (de) 2004-09-11 2006-03-15 LuK Lamellen und Kupplungsbau Beteiligungs KG Hydraulisches System, insbesondere für Kraftfahrzeuge
US7438660B2 (en) * 2006-01-17 2008-10-21 General Motors Corporation Pressure regulator valve with boost feature
JP4424369B2 (ja) * 2007-04-25 2010-03-03 トヨタ自動車株式会社 自動変速機のダンパ機構

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932488A (it) * 1972-07-24 1974-03-25
DE2514593C3 (de) * 1975-04-03 1980-08-14 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Steuerventil für hydraulisch betätigte Lamellen-Kupplungen
US4132302A (en) * 1976-06-07 1979-01-02 International Harvester Company Transmission clutches with fully-resetting modulator-load-piston
DE2728737A1 (de) * 1977-06-25 1979-01-11 Hurth Masch Zahnrad Carl Vorrichtung zum wahlweisen schalten der kupplungen von getrieben mittels druckmittel

Also Published As

Publication number Publication date
WO1984000794A1 (en) 1984-03-01
DE3374892D1 (en) 1988-01-21
EP0116570A1 (en) 1984-08-29
IT8322528A0 (it) 1983-08-12
EP0116570B1 (en) 1987-12-09
JPS59501556A (ja) 1984-08-30

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