GB1283686A - Improvements in or relating to valves - Google Patents

Improvements in or relating to valves

Info

Publication number
GB1283686A
GB1283686A GB647570A GB647570A GB1283686A GB 1283686 A GB1283686 A GB 1283686A GB 647570 A GB647570 A GB 647570A GB 647570 A GB647570 A GB 647570A GB 1283686 A GB1283686 A GB 1283686A
Authority
GB
United Kingdom
Prior art keywords
chamber
valve member
sealing member
fixed
double
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
GB647570A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1283686A publication Critical patent/GB1283686A/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
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves

Abstract

1283686 Valves ROBERT BOSCH GmbH 11 Feb 1970 [27 March 1969] 6475/70 Headings F2F and F2V A valve member 5 is axially movable in a cylinder 7 and carries a deformable sealing member 1 with a lip 9 which in the position shown isolates a chamber 2 on one side of the sealing member from a double annular chamber 3 on the other side. This double chamber is defined on the radially outer and inner sides of a second axially movable valve member 10 constituted by an annular intermediate part. In the position shown, the valve member 10 engages the sealing member 1 to isolate the inner and outer portions of chamber 3. In a leftward position of valve member 10, the two parts of chamber 3 are in communication with each other and in a rightward position the part 10 moves the lip 9 away from the bore to establish communication between chamber 2 and the outer portion of chamber 3. The sealing member is provided with a radially outwardly acting spring ring 14 and a garter spring 16 and is fixed on the valve member 5 by a sleeve 17. In modifications, the seal is moulded round a flanged retaining sleeve, Figs. 2 to 4 (not shown). Brake booster and actuator.-The cylinder 7 is fixed to the booster casing 38, Fig. 6 (not shown). Intermediate part 10 extends through and is fixed to the booster piston 36, so that the two portions of double chamber 3 are in communication respectively with opposite sides of the piston. Chamber 2 communicates with atmosphere. The inner valve member 5 is carried by an actuating rod 44.
GB647570A 1969-03-27 1970-02-11 Improvements in or relating to valves Expired GB1283686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691915705 DE1915705A1 (en) 1969-03-27 1969-03-27 Valve seal

Publications (1)

Publication Number Publication Date
GB1283686A true GB1283686A (en) 1972-08-02

Family

ID=5729508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB647570A Expired GB1283686A (en) 1969-03-27 1970-02-11 Improvements in or relating to valves

Country Status (3)

Country Link
DE (1) DE1915705A1 (en)
FR (1) FR2030677A5 (en)
GB (1) GB1283686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115107726A (en) * 2022-06-20 2022-09-27 眉山中车制动科技股份有限公司 Three-pressure brake valve for controlling air pressure fluctuation of brake cylinder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200001A (en) * 1977-07-05 1980-04-29 The Bendix Corporation Valve travel mechanism
DE8908040U1 (en) * 1989-06-30 1990-10-31 Lucas Industries P.L.C., Birmingham, West Midlands, Gb

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115107726A (en) * 2022-06-20 2022-09-27 眉山中车制动科技股份有限公司 Three-pressure brake valve for controlling air pressure fluctuation of brake cylinder
CN115107726B (en) * 2022-06-20 2023-07-11 眉山中车制动科技股份有限公司 Three-pressure brake valve for controlling air pressure fluctuation of brake cylinder

Also Published As

Publication number Publication date
FR2030677A5 (en) 1970-11-13
DE1915705A1 (en) 1970-10-01

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Legal Events

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