Hydraulic power booster

Details Hydraulic power booster Hydraulic power booster

Filed on

1984-04-27

Date issued

1987-06-09

Examiner

Hershkovitz, Abraham

Patent Class

Power plants

SubClass

Pressure fluid source and motor

SubSubClass

Pulsator

Other Related Categories

60554, 60562, 60574, B60T 1320

Type

Patent

Status

active

Patent number

046710663

Description

ABSTRACT:
A hydraulic power booster, for the actuation of a master cylinder in an automotive vehicle brake system, in which a booster piston and a brake valve are essentially arranged in parallel with the booster piston. In dependence on the actuation force applied to the brake system, a hydraulic pressure may be developed in a booster chamber which is essentially defined by a pedal-operable piston rod and by the booster piston. In order to supply at least the required absorption volume to the brake actuating devices without considerable reaction force at the brake pedal, the piston rod may be supported at the booster housing, against an actuating force. The booster piston is positively connected with the piston rod so as to enable a limited relative displacement between the booster piston and the piston rod.

REFERENCES:
patent: 3889467 (1975-06-01), Huffman
patent: 3978667 (1976-09-01), Ohara
patent: 4287813 (1981-09-01), Chatterjea
patent: 4366745 (1983-01-01), Belart
patent: 4433543 (1984-02-01), Thomas
patent: 4462300 (1984-07-01), Belart
patent: 4468927 (1984-09-01), Farr
patent: 4474004 (1984-10-01), Thomas
patent: 4490977 (1985-01-01), Fulmer

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