GB1348263A - Dual hydraulic brake systems - Google Patents

Dual hydraulic brake systems

Info

Publication number
GB1348263A
GB1348263A GB1400771A GB1400771A GB1348263A GB 1348263 A GB1348263 A GB 1348263A GB 1400771 A GB1400771 A GB 1400771A GB 1400771 A GB1400771 A GB 1400771A GB 1348263 A GB1348263 A GB 1348263A
Authority
GB
United Kingdom
Prior art keywords
chambers
piston
pressure
failure
master cylinder
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
GB1400771A
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.)
Tokico Ltd
Original Assignee
Tokico Ltd
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 Tokico Ltd filed Critical Tokico Ltd
Publication of GB1348263A publication Critical patent/GB1348263A/en
Expired legal-status Critical Current

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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc 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
    • 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
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/226—Devices for monitoring or checking brake systems; Signal devices using devices being responsive to the difference between the fluid pressions in conduits of multiple braking systems
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2123/00—Multiple operation forces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Braking Arrangements (AREA)

Abstract

1348263 Fluid pressure brakes; indicating failure TOKICO Ltd 10 May 1971 [9 May 1970] 14007/71 Headings F2E and F2F A duel hydraulic brake system comprises two independent circuits connected to a tandem master cylinder 13 and a wheel cylinder 2 having a stepped piston 3 and two independent hydraulic pressure chambers 4, 5 defined by the piston and cylinder, the chambers 4, 5 being pressurized at different levels by the stepped chambers of the master cylinder and the piston 3 having a single seal 6 which allows fluid communication between the pressure chambers if the seal fails. Floats in the reservoirs of the master cylinder operate contacts to energize an alarm lamp 32 when the liquid level falls, due to such failure, and in a modified system, Fig. 2, an oil pressure sensing unit 140 connected to both circuits and having a stepped piston 141 energizes a lamp 132 in the event of pressure failure in one circuit.
GB1400771A 1970-05-09 1971-05-10 Dual hydraulic brake systems Expired GB1348263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45039456A JPS4820662B1 (en) 1970-05-09 1970-05-09

Publications (1)

Publication Number Publication Date
GB1348263A true GB1348263A (en) 1974-03-13

Family

ID=12553530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1400771A Expired GB1348263A (en) 1970-05-09 1971-05-10 Dual hydraulic brake systems

Country Status (3)

Country Link
JP (1) JPS4820662B1 (en)
DE (1) DE2123518C2 (en)
GB (1) GB1348263A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440754U (en) * 1977-08-23 1979-03-17
JPS60195526U (en) * 1984-06-08 1985-12-26 株式会社　アイデアル Hand part of folding western umbrella
DE3435089C2 (en) * 1984-09-25 1995-11-30 Teves Gmbh Alfred Method for checking the tightness of hydraulic brake systems in motor vehicles equipped with brake slip control systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814532A (en) * 1952-04-02 1957-11-26 Robert G Stephanski Brake systems
GB986175A (en) * 1963-02-10 1965-03-17 Girling Ltd Improvements in master cylinders for hydraulic braking systems
US3490565A (en) * 1966-11-16 1970-01-20 Teves Gmbh Alfred Piston assembly for dual-network disk-brake system
FR1555573A (en) * 1967-07-21 1969-01-31
US3486591A (en) * 1968-06-19 1969-12-30 Clarence E Scheffler Dual automotive brake system

Also Published As

Publication number Publication date
JPS4820662B1 (en) 1973-06-22
DE2123518C2 (en) 1982-07-22
DE2123518A1 (en) 1971-11-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee