FR2562957B1 - Emetteur de pression hydraulique a double piston - Google Patents

Emetteur de pression hydraulique a double piston

Info

Publication number
FR2562957B1
FR2562957B1 FR8405737A FR8405737A FR2562957B1 FR 2562957 B1 FR2562957 B1 FR 2562957B1 FR 8405737 A FR8405737 A FR 8405737A FR 8405737 A FR8405737 A FR 8405737A FR 2562957 B1 FR2562957 B1 FR 2562957B1
Authority
FR
France
Prior art keywords
hydraulic pressure
pressure transmitter
double piston
piston hydraulic
double
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
FR8405737A
Other languages
English (en)
Other versions
FR2562957A1 (fr
Inventor
Georges Dalibout
Michel Grenier
Daniel Cieplinski
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.)
Wabco Westinghouse SA
Original Assignee
Wabco Westinghouse SA
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 Wabco Westinghouse SA filed Critical Wabco Westinghouse SA
Priority to FR8405737A priority Critical patent/FR2562957B1/fr
Priority to US06/786,916 priority patent/US4703623A/en
Publication of FR2562957A1 publication Critical patent/FR2562957A1/fr
Application granted granted Critical
Publication of FR2562957B1 publication Critical patent/FR2562957B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/224—Master control, e.g. master cylinders with pressure-varying means, e.g. with two stage operation provided by use of different piston diameters including continuous variation from one diameter to another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
    • B60T13/44—Compressed-air systems indirect, i.e. compressed air booster units indirect systems with two-chamber booster units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
FR8405737A 1984-04-11 1984-04-11 Emetteur de pression hydraulique a double piston Expired FR2562957B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8405737A FR2562957B1 (fr) 1984-04-11 1984-04-11 Emetteur de pression hydraulique a double piston
US06/786,916 US4703623A (en) 1984-04-11 1985-10-11 Double-piston master cylinder with central booster-driven piston driving surrounding low pressure piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8405737A FR2562957B1 (fr) 1984-04-11 1984-04-11 Emetteur de pression hydraulique a double piston

Publications (2)

Publication Number Publication Date
FR2562957A1 FR2562957A1 (fr) 1985-10-18
FR2562957B1 true FR2562957B1 (fr) 1986-11-21

Family

ID=9303078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8405737A Expired FR2562957B1 (fr) 1984-04-11 1984-04-11 Emetteur de pression hydraulique a double piston

Country Status (2)

Country Link
US (1) US4703623A (fr)
FR (1) FR2562957B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595078B1 (fr) * 1986-02-28 1990-03-16 Wabco Westinghouse Bloc de commande de frein a ressort d'actionnement et son application a un systeme de freinage
JPH067018Y2 (ja) * 1989-02-14 1994-02-23 株式会社ナブコ 液圧制御弁
US7156471B2 (en) * 2004-10-28 2007-01-02 Wabtec Holding Corp. Two-stage cylinder for applying automatic set and release hand brake
CA2586533A1 (fr) * 2007-04-27 2008-10-27 Eric Siegrist Cylindre a maitre frein a deux phases
EP2718067B1 (fr) 2011-04-11 2023-10-11 Milwaukee Electric Tool Corporation Dispositif de poinçon éjecteur hydraulique à main
US8960380B2 (en) 2012-01-12 2015-02-24 Oil States Industries, Inc. Liquid-cooled brake assembly with removable heat transfer insert
CN204573232U (zh) 2012-07-31 2015-08-19 米沃奇电动工具公司 多功能阀
CN104500360A (zh) * 2014-12-29 2015-04-08 芜湖盛力科技股份有限公司 一种空气加力泵
US9670921B2 (en) 2015-09-17 2017-06-06 Monkey Pumps, LLC Reciprocating drive mechanism with a spool vent
WO2017087146A1 (fr) 2015-11-19 2017-05-26 Monkey Pumps, LLC Mécanisme d'entraînement alternatif présentant un évent de bobine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206629A (en) * 1939-03-01 1940-07-02 Hydraulic Brake Co Fluid pressure braking system
GB532980A (en) * 1939-09-28 1941-02-04 E M B Co Ltd Improvements relating to hydraulic intensifiers
US2358021A (en) * 1940-02-02 1944-09-12 Atwood Vacuum Machine Co Master cylinder for hydraulic braking systems
US2291056A (en) * 1941-01-31 1942-07-28 Roy R Pallady Compound hydraulic brake master cylinder
US2373506A (en) * 1943-07-02 1945-04-10 Wagner Electric Corp Fluid pressure compounding system
DE896917C (de) * 1948-01-27 1953-11-16 Teves Kg Alfred Hauptzylinder fuer hydraulische Bremseinrichtungen, insbesondere an Kraftfahrzeugen
US3062011A (en) * 1960-11-28 1962-11-06 Gen Motors Corp Dual master cylinder
US3228195A (en) * 1964-04-15 1966-01-11 Bell Aerospace Corp Hydraulic brake
DE1780182A1 (de) * 1968-08-12 1971-12-30 Fries Gerhard Stufenhauptzylinder,insbesondere fuer die Bremsen von Kraftfahrzeugen
DE1934260A1 (de) * 1969-07-05 1971-01-14 Teves Gmbh Alfred Stufenhauptzylinder
US3981148A (en) * 1974-04-29 1976-09-21 Caterpillar Tractor Co. Combined fluid motor and pumping apparatus
IT1043613B (it) * 1975-10-23 1980-02-29 Benditalia Spa Dispositivo generatore di pressio ne specialmente per comandi idraulici di preni e frizioni di autovecoli
JPS55112405A (en) * 1979-02-23 1980-08-30 Tadano Tekkosho:Kk Master cylinder
DE2913265A1 (de) * 1979-04-03 1980-10-30 Wabco Fahrzeugbremsen Gmbh Kombinierte bremssteuereinrichtung in kraftfahrzeugbremsanlagen
US4414811A (en) * 1981-02-19 1983-11-15 The Bendix Corporation Master cylinder
US4467605A (en) * 1982-09-27 1984-08-28 Wabco Ltd. Hydro-pneumatic actuator with automatic slack adjuster

Also Published As

Publication number Publication date
FR2562957A1 (fr) 1985-10-18
US4703623A (en) 1987-11-03

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Legal Events

Date Code Title Description
CA Change of address
ST Notification of lapse