GB317492A - Improvements in or relating to fluid pressure opessure brake systems - Google Patents

Improvements in or relating to fluid pressure opessure brake systems

Info

Publication number
GB317492A
GB317492A GB25154/29A GB2515429A GB317492A GB 317492 A GB317492 A GB 317492A GB 25154/29 A GB25154/29 A GB 25154/29A GB 2515429 A GB2515429 A GB 2515429A GB 317492 A GB317492 A GB 317492A
Authority
GB
United Kingdom
Prior art keywords
cylinder
pressure
piston
pinion
brake
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
GB25154/29A
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.)
Hydraulic Brake Co
Original Assignee
Hydraulic Brake Co
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 Hydraulic Brake Co filed Critical Hydraulic Brake Co
Publication of GB317492A publication Critical patent/GB317492A/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
    • 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
    • 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
    • B60T13/24—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 gaseous
    • B60T13/241—Differential pressure systems
    • B60T13/242—The control valve is provided as one unit with the servomotor cylinder
    • B60T13/244—Mechanical command of the control valve, hydraulic transmission to the brakes
    • 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
    • F16D65/38—Slack adjusters
    • F16D65/72—Slack adjusters hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

317,492. Hydraulic Brake Co., (Assignees of Bowen, H. C.). Aug. 18, 1928, [Convention date]. Fluid-pressure.-Slight initial movement of a brake lever permits an independent pressure producing device to produce substantially instantaneously a pressure in a fluid-pressure brake system sufficient to remove the slack, independently of any further movement of said brake lever. This pressure, is produced by a source of energy, such as the induction manifold of the vehicle engine, which is independent ot the main source. Brakes 6, Fig. 1, are actuated by the pressure produced in a master cylinder 7 operated by the pedal 11 and a lever 8. A cylinder 13 is connected to the brake pipe 10 and contains a piston 14, Fig. 2, having a threaded piston rod 15, slidably, but not rotatably, engaging bearings 17, 18 fixed to the cylinder. A pinion 22 is supported between the bearings and by means of an internal thread engages the threads on the piston rod. Engaging the pinion is a rack 23 on a piston rod 25 of a piston in a cylinder 27, Fig. 1. The cylinder 27 is normally open to atmosphere past a valve, the stem 33 of which contacts the lever 8. Initial movement of the brake pedal withdraws this lever and allows a spring to move the valve to close the atmospheric ports and open the cylinder 27 to a pipe 36 leading to the induction manifold of the vehicle engine. The vacuum produced in the cylinder thereupon causes the piston therein to move and rotate the pinion 22 and move the piston 14 downwardly to apply an initial pressure to the fluid-pressure system. The thread connection between the piston rod 15 and pinion 22 is irreversible. Release of the pedal 11 moves the valve rod 33 so that the cylinder 27 is connected to atmosphere again and a spring acting on the piston therein returns it and also the piston 14 by means of the rack and pinion 23, 22, to normal position.
GB25154/29A 1928-08-18 1929-08-17 Improvements in or relating to fluid pressure opessure brake systems Expired GB317492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US317492XA 1928-08-18 1928-08-18

Publications (1)

Publication Number Publication Date
GB317492A true GB317492A (en) 1930-11-17

Family

ID=21861187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25154/29A Expired GB317492A (en) 1928-08-18 1929-08-17 Improvements in or relating to fluid pressure opessure brake systems

Country Status (3)

Country Link
DE (1) DE558035C (en)
GB (1) GB317492A (en)
NL (1) NL32644C (en)

Also Published As

Publication number Publication date
NL32644C (en)
DE558035C (en) 1932-09-03

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