GB776725A - Improvements in and relating to two-circuit fluid pressure braking installations formotor vehicles - Google Patents

Improvements in and relating to two-circuit fluid pressure braking installations formotor vehicles

Info

Publication number
GB776725A
GB776725A GB2806255A GB2806255A GB776725A GB 776725 A GB776725 A GB 776725A GB 2806255 A GB2806255 A GB 2806255A GB 2806255 A GB2806255 A GB 2806255A GB 776725 A GB776725 A GB 776725A
Authority
GB
United Kingdom
Prior art keywords
oil pressure
cylinder
failure
air
brakes
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
GB2806255A
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg 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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of GB776725A publication Critical patent/GB776725A/en
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
    • 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
    • B60T13/12—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 liquid
    • B60T13/16—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 liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • 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
    • B60T13/58—Combined or convertible systems
    • B60T13/581—Combined or convertible systems both hydraulic and pneumatic

Landscapes

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

Abstract

776,725. Vehicle servo-brakes. MASCHINEN. FABRIK AUGSBURG-NURNBERG AKT.- GES. Oct. 3, 1955 [Nov. 6, 1954], No. 28062/55. Class 103 (1). In a brake installation, particularly for medium weight lorries or omnibuses, of the twocircuit type wherein the front and rear axle brakes are operated by independent means to prevent simultaneous failure, the rear wheel brakes 9, 9a, Fig. 1, are operated by a single chamber air brake cylinder 10 by air from a reservoir 3 under control of foot valve 7, failure of such air pressure allowing a spring energy storage cylinder 15 to operate an hydraulic master cylinder 12 to cause oil pressure to apply the front wheel brakes 14 and 14a. The oil pressure may be released back to the reservoir 13 as necessary by operation of a hand or foot operated plunger 22. In an alternative embodiment, Fig. 3, compression of the spring of the storage cylinder 15 is produced by oil pressure from a continuously running pump 24, as well as by air pressure through pipe 17, failure of the air pressure resulting also in the blocking of a discharge pipe 33 by a slide valve 26 so that the oil pressure in cylinder 25 is under control of a valve 28.
GB2806255A 1954-11-06 1955-10-03 Improvements in and relating to two-circuit fluid pressure braking installations formotor vehicles Expired GB776725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM25091A DE1041374B (en) 1954-11-06 1954-11-06 Dual-circuit brake actuation system for motor vehicles operated with compressed air

Publications (1)

Publication Number Publication Date
GB776725A true GB776725A (en) 1957-06-12

Family

ID=7299453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2806255A Expired GB776725A (en) 1954-11-06 1955-10-03 Improvements in and relating to two-circuit fluid pressure braking installations formotor vehicles

Country Status (3)

Country Link
DE (1) DE1041374B (en)
FR (1) FR1137634A (en)
GB (1) GB776725A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE696395C (en) * 1935-10-01 1940-09-20 Maschf Augsburg Nuernberg Ag Braking device for motor vehicles
FR840641A (en) * 1938-01-03 1939-04-28 Outil Mec Usinage Artillerie Self-regulating device for the force applied by a pressurized fluid
FR878239A (en) * 1941-08-19 1943-01-14 Olaer Marine Soc Braking device

Also Published As

Publication number Publication date
DE1041374B (en) 1958-10-16
FR1137634A (en) 1957-05-31

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