GB1165733A - Improvements in Vehicle Braking Systems - Google Patents

Improvements in Vehicle Braking Systems

Info

Publication number
GB1165733A
GB1165733A GB2978466A GB2978466A GB1165733A GB 1165733 A GB1165733 A GB 1165733A GB 2978466 A GB2978466 A GB 2978466A GB 2978466 A GB2978466 A GB 2978466A GB 1165733 A GB1165733 A GB 1165733A
Authority
GB
United Kingdom
Prior art keywords
lever
spindle
arm
force
flywheel
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
GB2978466A
Inventor
Alexander John Wilson
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.)
Girling Ltd
Original Assignee
Girling 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 Girling Ltd filed Critical Girling Ltd
Priority to GB2978466A priority Critical patent/GB1165733A/en
Priority to GB2970168A priority patent/GB1216560A/en
Publication of GB1165733A publication Critical patent/GB1165733A/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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/343—Systems characterised by their lay-out
    • B60T8/344—Hydraulic systems
    • B60T8/345—Hydraulic systems having more than one brake circuit per wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

1,165,733. Deceleration responsive brake system. GIRLING Ltd. 26 June, 1967 [2 July, 1966], No. 29784/66. Heading F2F. Brake-applying force on a piston 48, pivots a resilient lever 30 about a fulcrum pin 33 and is resisted by a deceleration responsive arm 26 acting on the end 36 of the lever 30, an intermediate point on the lever acting on a brake control valve spindle 53. The valve comprises a head 58 seated by a spring washer 60 on a member 59 to control air flow from an aperture 64, filter 62, passage 66 and bores 65, 67, to an outlet 68 connected to a servo-operating the brakes. In the completely unoperated position, the piston 48 is disengaged from the lever 30, and the adjacent end of the lever is urged by a spring 34 until the pin 33 engages the opposite end to that shown of a slot 32 in a lug 31 attached to the lever, whereby the lever acts about a different fulcrum 37 to apply a force at 36 to the arm 26, via a thrust member 29. Movement of the piston 48 to the right (as shown) compresses spring 34 and maintains pressure on the deceleration responsive arm 26. The latter is pivoted about its upper end (as shown) to an arm 25 fast with a spindle 14 driven by the vehicle wheel(s). A flywheel 11 is mounted by bearings 13 on the spindle and, with constant wheel speed the flywheel attains the same speed as the spindle. Relative rotation between the flywheel and spindle, due to deceleration of the latter, causes relative motion between a ball 28 carried at the end of arm 26 and the adjacent face of the flywheel, causing the ball to run up a ramp 27 and force the arm 26 to the left about its pivot. The resulting force acting on the spindle 53 of the brake control valve 54 tends to close the valve, thereby limiting braking to avoid locking and skidding, and the resilient nature of the lever ensures that below a certain value of input force on the piston 48, the braking is proportional over a range to the input force. Above this value the brake valve 54 is fully open.
GB2978466A 1966-07-02 1966-07-02 Improvements in Vehicle Braking Systems Expired GB1165733A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2978466A GB1165733A (en) 1966-07-02 1966-07-02 Improvements in Vehicle Braking Systems
GB2970168A GB1216560A (en) 1966-07-02 1968-06-21 Improvements in vehicle braking systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2978466A GB1165733A (en) 1966-07-02 1966-07-02 Improvements in Vehicle Braking Systems

Publications (1)

Publication Number Publication Date
GB1165733A true GB1165733A (en) 1969-10-01

Family

ID=10297110

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2978466A Expired GB1165733A (en) 1966-07-02 1966-07-02 Improvements in Vehicle Braking Systems

Country Status (1)

Country Link
GB (1) GB1165733A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201255A1 (en) * 1982-01-16 1983-08-04 Volkswagenwerk Ag, 3180 Wolfsburg "HYDRAULIC BRAKE SYSTEM FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES"

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201255A1 (en) * 1982-01-16 1983-08-04 Volkswagenwerk Ag, 3180 Wolfsburg "HYDRAULIC BRAKE SYSTEM FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES"
US4477123A (en) * 1982-01-16 1984-10-16 Volkswagenwerk Ag Hydraulic brake system for vehicles

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees