FR2322036A1 - Master brake cylinder with stepped bore - and two different sizes of floating piston for fail safe braking - Google Patents

Master brake cylinder with stepped bore - and two different sizes of floating piston for fail safe braking

Info

Publication number
FR2322036A1
FR2322036A1 FR7625600A FR7625600A FR2322036A1 FR 2322036 A1 FR2322036 A1 FR 2322036A1 FR 7625600 A FR7625600 A FR 7625600A FR 7625600 A FR7625600 A FR 7625600A FR 2322036 A1 FR2322036 A1 FR 2322036A1
Authority
FR
France
Prior art keywords
different sizes
brake cylinder
master brake
stepped bore
piston
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.)
Withdrawn
Application number
FR7625600A
Other languages
French (fr)
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of FR2322036A1 publication Critical patent/FR2322036A1/en
Withdrawn legal-status Critical Current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
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Arrangements (AREA)

Abstract

The two circuit brakes are powered by a stepped bore master brake cylinder in which the two different sizes of piston are not rigidly linked together. The smaller piston (4) can move away from the larger piston (3) and only rests against a spring loaded extension (22) of the larger piston when the brakes are released. The system provides a secure braking control in the event of circuit failure, without overbraking on the remaining circuit. The rear wheels are supplied from the small dia. cylinder, so that the front is braked harder.
FR7625600A 1975-08-26 1976-08-24 Master brake cylinder with stepped bore - and two different sizes of floating piston for fail safe braking Withdrawn FR2322036A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752537868 DE2537868A1 (en) 1975-08-26 1975-08-26 MASTER CYLINDER WITH STEPPED PISTON

Publications (1)

Publication Number Publication Date
FR2322036A1 true FR2322036A1 (en) 1977-03-25

Family

ID=5954842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625600A Withdrawn FR2322036A1 (en) 1975-08-26 1976-08-24 Master brake cylinder with stepped bore - and two different sizes of floating piston for fail safe braking

Country Status (5)

Country Link
JP (1) JPS5227968A (en)
DE (1) DE2537868A1 (en)
FR (1) FR2322036A1 (en)
IT (1) IT1073711B (en)
SE (1) SE7609481L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317142A1 (en) * 1975-06-27 1977-02-04 Girling Ltd IMPROVEMENTS TO HYDRAULIC MASTER CYLINDERS FOR VEHICLE BRAKE SYSTEMS
FR2436048A1 (en) * 1978-09-14 1980-04-11 Lucas Industries Ltd Motor vehicle hydraulic braking system - has piston return spring strength selected to achieve pressure build up in primary space before build up in secondary space

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240542C3 (en) * 1982-11-03 1996-07-04 Teves Gmbh Alfred Tandem master cylinder
US4781024A (en) * 1985-03-07 1988-11-01 Aisin Seiki Kabushiki Kaisha Static cup seal assembly for master cylinder end
DE3714741A1 (en) * 1987-05-02 1988-11-17 Teves Gmbh Alfred Motor vehicle brake system with slip control
DE3725791C1 (en) * 1987-08-04 1989-02-02 Daimler-Benz Ag, 7000 Stuttgart, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317142A1 (en) * 1975-06-27 1977-02-04 Girling Ltd IMPROVEMENTS TO HYDRAULIC MASTER CYLINDERS FOR VEHICLE BRAKE SYSTEMS
FR2436048A1 (en) * 1978-09-14 1980-04-11 Lucas Industries Ltd Motor vehicle hydraulic braking system - has piston return spring strength selected to achieve pressure build up in primary space before build up in secondary space

Also Published As

Publication number Publication date
SE7609481L (en) 1977-02-27
JPS5227968A (en) 1977-03-02
IT1073711B (en) 1985-04-17
DE2537868A1 (en) 1977-03-03

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Legal Events

Date Code Title Description
ST Notification of lapse