GB1183943A - Improvements in or relating to Vacuum Brake Boosters - Google Patents

Improvements in or relating to Vacuum Brake Boosters

Info

Publication number
GB1183943A
GB1183943A GB2843167A GB2843167A GB1183943A GB 1183943 A GB1183943 A GB 1183943A GB 2843167 A GB2843167 A GB 2843167A GB 2843167 A GB2843167 A GB 2843167A GB 1183943 A GB1183943 A GB 1183943A
Authority
GB
United Kingdom
Prior art keywords
piston
pressure
booster
rod
pedal
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
GB2843167A
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves GmbH
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 Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of GB1183943A publication Critical patent/GB1183943A/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
    • B60T13/24—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
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction 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
    • 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
    • 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
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

1,183,943. Vacuum brake booster systems. ALFRED TEVES G.m.b.H. 20 June, 1967 [30 Sept., 1966], No. 28431/67. Heading F2F. To enable a vehicle driver to sense the braking force exerted in a booster assisted hydraulic brake system, a reaction piston 16 is provided which is slidable in a bore of an extension sleeve member 2a of a booster piston 2. The piston end 16a is subjected to pressure in the brake primary circuit while its other end abuts pedal link rod 5, and thereby pressure is transmitted to the pedal. Likewise a control piston 17 transmits reaction force due to the secondary circuit pressure. The booster piston assembly 2, 2a, a sleeve 10 and a spacer member 20 form the primary piston, slidable in master cylinder chamber 14; while 11 is a secondary piston. If the primary circuit fails the booster piston assembly is moved by atmospheric pressure until spacer 20 abuts a disc 19 on a push rod 18 and the rod 5 and reaction piston 16 are shifted until piston 16 abuts the rod 18. Brakes are thus operated and reaction force is transmitted to the pedal being derived from pressure in the secondary circuit chamber 15 which acts, via bore 21 of piston 11, on the control piston 17 and is transmitted by push rod 18 to piston 16 and via rod 5 to the pedal. The booster piston chamber 3 is always maintained at negative pressure while chamber 4 is alternately at negative pressure and atmospheric pressure, as determined by valves operated by movement of link rod 5.
GB2843167A 1966-09-30 1967-06-20 Improvements in or relating to Vacuum Brake Boosters Expired GB1183943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0032169 1966-09-30

Publications (1)

Publication Number Publication Date
GB1183943A true GB1183943A (en) 1970-03-11

Family

ID=7556853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2843167A Expired GB1183943A (en) 1966-09-30 1967-06-20 Improvements in or relating to Vacuum Brake Boosters

Country Status (3)

Country Link
DE (1) DE1655293A1 (en)
ES (1) ES340008A1 (en)
GB (1) GB1183943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236563A (en) * 1989-10-07 1991-04-10 Teves Gmbh Alfred Reaction device in a vacuum brake booster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236563A (en) * 1989-10-07 1991-04-10 Teves Gmbh Alfred Reaction device in a vacuum brake booster

Also Published As

Publication number Publication date
DE1655293A1 (en) 1971-02-04
ES340008A1 (en) 1968-06-01

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Legal Events

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