FR2275668A1 - ASSISTANCE SERVOMOTOR - Google Patents

ASSISTANCE SERVOMOTOR

Info

Publication number
FR2275668A1
FR2275668A1 FR7519339A FR7519339A FR2275668A1 FR 2275668 A1 FR2275668 A1 FR 2275668A1 FR 7519339 A FR7519339 A FR 7519339A FR 7519339 A FR7519339 A FR 7519339A FR 2275668 A1 FR2275668 A1 FR 2275668A1
Authority
FR
France
Prior art keywords
assistance servomotor
servomotor
assistance
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.)
Granted
Application number
FR7519339A
Other languages
French (fr)
Other versions
FR2275668B1 (en
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.)
Bendix Corp
Original Assignee
Bendix 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 US481432A external-priority patent/US3910047A/en
Priority claimed from US481433A external-priority patent/US3911681A/en
Priority claimed from US05/484,381 external-priority patent/US3937021A/en
Application filed by Bendix Corp filed Critical Bendix Corp
Publication of FR2275668A1 publication Critical patent/FR2275668A1/en
Application granted granted Critical
Publication of FR2275668B1 publication Critical patent/FR2275668B1/fr
Granted 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
    • B60T13/241—Differential pressure systems
    • B60T13/242—The control valve is provided as one unit with the servomotor cylinder
    • B60T13/244—Mechanical command of the control valve, hydraulic transmission to the brakes
    • 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
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
FR7519339A 1974-06-20 1975-06-20 ASSISTANCE SERVOMOTOR Granted FR2275668A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US481432A US3910047A (en) 1974-06-20 1974-06-20 Two stage servomotor with smooth actuation sequence
US481433A US3911681A (en) 1974-06-20 1974-06-20 Control means for a two-stage servomotor
US05/484,381 US3937021A (en) 1974-07-01 1974-07-01 Hold off valve for a two stage servomotor

Publications (2)

Publication Number Publication Date
FR2275668A1 true FR2275668A1 (en) 1976-01-16
FR2275668B1 FR2275668B1 (en) 1978-02-24

Family

ID=27413569

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7519339A Granted FR2275668A1 (en) 1974-06-20 1975-06-20 ASSISTANCE SERVOMOTOR

Country Status (4)

Country Link
JP (1) JPS5113072A (en)
DE (1) DE2526391A1 (en)
FR (1) FR2275668A1 (en)
GB (1) GB1502109A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321061A1 (en) * 1975-08-11 1977-03-11 Bendix Corp ASSISTANCE SERVOMOTOR
FR2387827A1 (en) * 1977-04-18 1978-11-17 Gen Motors Corp QUICK STROKE MASTER CYLINDER FOR BRAKING CIRCUIT
EP0004477A1 (en) * 1978-03-29 1979-10-03 Tokico Ltd. Force-multiplying pneumatic device
FR2427496A1 (en) * 1978-05-31 1979-12-28 Tokico Ltd COMPRESSED AIR SERVO MOTOR

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482883U (en) * 1977-11-25 1979-06-12
JPS5632151Y2 (en) * 1978-07-13 1981-07-31
DE3412397A1 (en) * 1984-04-03 1985-10-10 Alfred Teves Gmbh, 6000 Frankfurt VACUUM-POWERED BRAKE-POWER AMPLIFIER WITH MAIN CYLINDER
WO2004022398A1 (en) * 2002-09-05 2004-03-18 Freni Brembo S.P.A. Vehicle braking system master cylinder
CN107738637B (en) * 2017-11-15 2024-04-30 山西通盛达机械有限公司 Differential pressure slide valve type braking clutch integrated control master cylinder system
US11535211B2 (en) * 2017-12-31 2022-12-27 ZF Active Safety US Inc. Vehicle brake system and method of detecting piston location of a plunger assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321061A1 (en) * 1975-08-11 1977-03-11 Bendix Corp ASSISTANCE SERVOMOTOR
FR2387827A1 (en) * 1977-04-18 1978-11-17 Gen Motors Corp QUICK STROKE MASTER CYLINDER FOR BRAKING CIRCUIT
EP0004477A1 (en) * 1978-03-29 1979-10-03 Tokico Ltd. Force-multiplying pneumatic device
FR2427496A1 (en) * 1978-05-31 1979-12-28 Tokico Ltd COMPRESSED AIR SERVO MOTOR

Also Published As

Publication number Publication date
JPS5113072A (en) 1976-02-02
DE2526391A1 (en) 1976-01-08
JPS5720181B2 (en) 1982-04-27
FR2275668B1 (en) 1978-02-24
GB1502109A (en) 1978-02-22

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Legal Events

Date Code Title Description
ST Notification of lapse