GB862465A - Servo arrangement for hydraulic systems, especially for motor vehicle brakes - Google Patents

Servo arrangement for hydraulic systems, especially for motor vehicle brakes

Info

Publication number
GB862465A
GB862465A GB1182059A GB1182059A GB862465A GB 862465 A GB862465 A GB 862465A GB 1182059 A GB1182059 A GB 1182059A GB 1182059 A GB1182059 A GB 1182059A GB 862465 A GB862465 A GB 862465A
Authority
GB
United Kingdom
Prior art keywords
piston
control
valve
servo
chamber
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
GB1182059A
Inventor
Friedrich Schneider
Heinz Nicolay
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.)
Graubremse GmbH
Original Assignee
Graubremse 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 Graubremse GmbH filed Critical Graubremse GmbH
Priority to GB1182059A priority Critical patent/GB862465A/en
Priority to FR791587A priority patent/FR1220462A/en
Priority to DEG27294A priority patent/DE1191239B/en
Publication of GB862465A publication Critical patent/GB862465A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B17/00—Combinations of telemotor and servomotor systems
    • 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
    • B60T13/245—Hydraulic command of the control valve, hydraulic transmission to the brake

Landscapes

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

Abstract

862,465. Fluid-pressure brakes. GRAUBREMSE G.m.b.H. April 8, 1959, No. 11820/59. Class 103 (1). In a servo-arrangement for hydraulic systems, particularly for the operation of vehicle brakes, in which the pressure generated in a control-pipe 23, by the operation of a piston connected with a control lever 22 initiates the servo-effect, and, upon activation of the servo, the control pressure is automatically reduced by enlargement of the capacity of a variable capacity chamber 30 included in the system. A working cylinder 1 with a working piston 7 and an intensifying cylinder 61 with an intensifying piston 20 is directly axially associated and the intensifier piston is fitted with a cylinder containing a displaceable hydraulic control-piston directly operated by hydraulic oil from the variable capacity chambers according to the pressure in the control pipe 23. The intensifier piston is provided with a control cylinder containing an air control piston, operable by the hydraulic control piston, said air control pistons in the control cylinder separating a venting chamber 31, which is in permanent communication with the atmosphere from a valve chamber and containing a connecting channel which is controlled by a valve, the cylinder end-plate which closes the valve chamber being provided with a pressure medium admission valve 13 and an opening for establishing a communication between the valve chamber and a servo chamber, the pressure medium admission valve being combined with the valve for controlling the piston channel in the form of a twin valve 13 in such manner that when the air control piston is displaced by the pressure in the control pipe through the hydraulic control piston, the valve in the control cylinder will first close the piston channel and shut-off the servo-chamber from the atmosphere, and that during the further displacement of the piston, the pressure medium admission valve will open and thus admit the pressure medium into the servo-chamber for operating the servo-piston.
GB1182059A 1959-04-08 1959-04-08 Servo arrangement for hydraulic systems, especially for motor vehicle brakes Expired GB862465A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1182059A GB862465A (en) 1959-04-08 1959-04-08 Servo arrangement for hydraulic systems, especially for motor vehicle brakes
FR791587A FR1220462A (en) 1959-04-08 1959-04-09 Amplifier device for hydraulic installations, in particular on motor vehicles
DEG27294A DE1191239B (en) 1959-04-08 1959-06-15 Dual-circuit servo braking system with a dual-circuit primary master cylinder, especially for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1182059A GB862465A (en) 1959-04-08 1959-04-08 Servo arrangement for hydraulic systems, especially for motor vehicle brakes

Publications (1)

Publication Number Publication Date
GB862465A true GB862465A (en) 1961-03-08

Family

ID=9993290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1182059A Expired GB862465A (en) 1959-04-08 1959-04-08 Servo arrangement for hydraulic systems, especially for motor vehicle brakes

Country Status (1)

Country Link
GB (1) GB862465A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942326A (en) * 1974-03-18 1976-03-09 Tokico Ltd. Hydraulic brake force-multiplying device
GB2226858A (en) * 1989-01-07 1990-07-11 Automotive Products Plc Vehicle traction slip control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942326A (en) * 1974-03-18 1976-03-09 Tokico Ltd. Hydraulic brake force-multiplying device
GB2226858A (en) * 1989-01-07 1990-07-11 Automotive Products Plc Vehicle traction slip control system

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