GB497226A - Improvements in and relating to hydraulic pressure systems - Google Patents

Improvements in and relating to hydraulic pressure systems

Info

Publication number
GB497226A
GB497226A GB16408/37A GB1640837A GB497226A GB 497226 A GB497226 A GB 497226A GB 16408/37 A GB16408/37 A GB 16408/37A GB 1640837 A GB1640837 A GB 1640837A GB 497226 A GB497226 A GB 497226A
Authority
GB
United Kingdom
Prior art keywords
piston
thrust member
pressure
spring
springs
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
GB16408/37A
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.)
Honeywell UK Ltd
Original Assignee
Bendix 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 Bendix Ltd filed Critical Bendix Ltd
Priority to GB16408/37A priority Critical patent/GB497226A/en
Priority to FR841039D priority patent/FR841039A/en
Publication of GB497226A publication Critical patent/GB497226A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

497,226. Hydraulic transmission of power. BENDIX, Ltd., and ROBERTS, G. P. June 14, 1937, No. 16408. [Class 69 (ii)] [Also in Group XXXIV] An hydraulic pressure system, more particularly for brakes, comprises a spring-loaded servo-mechanism automatically brought into action when the hydraulic pressure exceeds a predetermined value. The master cylinder is connected at 13 and the brake cylinders at 39 so that the braking pressure is transmitted by passages 21, 22 and past a valve 26. The mechanical servo comprises springs 56 connected to trunnions on a thrust member 46 and pivoted at 48 to the casing. The thrust member is adapted to exert pressure on the hydraulic system by means of a spring 47 and a piston 36. The springs 56 are substantially at right-angles to the thrust member but slightly off-centre so that the axial component acts in the releasing direction. Pressure fluid from the master cylinder acts also on a piston 28 connected to the valves 26 and to a cylindrical part 25 acting as a stop for a peg 33 extending from the piston 36. When during brake application this pressure is sufficient to overcome a spring 31, the piston 28 is forced down, closing the valve 26 and moving the stop 25 down so that apertures 35, 64 are aligned in the path of the peg 33 and no longer stop the movement of the thrust member 46. Pressure fluid from the master cylinder which acts also through a pipe 17 on a piston 53 and the thrust member 46 now moves the thrust member to the right, the springs 56 are moved past their dead-centre and their horizontal component exerts pressure on the piston 36 and thus on the brakes. When the brake pedal is released, the piston 36, thrust member and springs 56 are returned to release position by the pressure in the transmission system, and the valve 26 and the stop 25 are returned by the spring 31. The valve 26 comprises a cup leather seal, which enters and closes the cylinder 23 containing the piston 28, and is enclosed by an inverted cup 26b which is slidable against a spring 26c and engages a seating 24. The cup is adapted to guide and protect the cup leather seal.
GB16408/37A 1937-06-14 1937-06-14 Improvements in and relating to hydraulic pressure systems Expired GB497226A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB16408/37A GB497226A (en) 1937-06-14 1937-06-14 Improvements in and relating to hydraulic pressure systems
FR841039D FR841039A (en) 1937-06-14 1938-07-22 Mechanical servo motor, suitable for application to hydraulic braking mechanisms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB16408/37A GB497226A (en) 1937-06-14 1937-06-14 Improvements in and relating to hydraulic pressure systems
FR841039T 1938-07-22

Publications (1)

Publication Number Publication Date
GB497226A true GB497226A (en) 1938-12-14

Family

ID=10076779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16408/37A Expired GB497226A (en) 1937-06-14 1937-06-14 Improvements in and relating to hydraulic pressure systems

Country Status (2)

Country Link
FR (1) FR841039A (en)
GB (1) GB497226A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871827A (en) * 1956-02-08 1959-02-03 Arthur B Euga Brake motor
US2940551A (en) * 1956-02-08 1960-06-14 Arthur B Euga Brake system for vehicles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8626480D0 (en) * 1986-11-05 1986-12-03 Dewandre Co Ltd C Clutch booster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871827A (en) * 1956-02-08 1959-02-03 Arthur B Euga Brake motor
US2940551A (en) * 1956-02-08 1960-06-14 Arthur B Euga Brake system for vehicles

Also Published As

Publication number Publication date
FR841039A (en) 1939-05-09

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