Hydraulic power booster

Details Hydraulic power booster Hydraulic power booster

1988-07-07

1990-02-20

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91371, F15B 910

Patent

active

049016261

ABSTRACT:
The invention relates to a hydraulic power booster, in particular for the actuation of a master cylinder in a hydraulic brake system for motor vehicles. The booster comprises a pressure fluid source, a control device for the control of the pressure level in a booster pressure chamber, an actuating element for the actuation of the control device which actuating element is acted upon by an input force, a converting device for the conversion of the hydraulic pressure into a translatory force which converting device is acted upon by a pressure fluid, and a force transmission element which, preferably is an operating rod for a tandem master cylinder. A semi-rigid force transmission element is arranged in the structure for the transmission of force from the actuating element to the force transmission element in order to obtain a two-stage effect.

REFERENCES:
patent: 3470697 (1969-10-01), Pech et al.
patent: 3898808 (1975-08-01), Ewald
patent: 4240330 (1980-12-01), Farr
patent: 4377105 (1983-03-01), Fecher
patent: 4462300 (1984-07-01), Belart
patent: 4642990 (1987-02-01), Mizusawa et al.
patent: 4776256 (1988-10-01), Gath et al.

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