Hydraulic brake force amplifier

Details Hydraulic brake force amplifier Hydraulic brake force amplifier

1980-03-20

1982-08-31

Reger, Duane A.

Fluid-pressure and analogous brake systems

Pipeless valves

303114, B60T 1718

Patent

active

043469426

ABSTRACT:
A hydraulic brake force amplifier for multiple-circuit brake systems provided with a control valve which is actuated by the brake pedal via a travel-limiting spring. Disposed parallel to the control valve is a main cylinder, which is actuatable by the brake pedal either in accordance with pressure or when there is a failure of the pressure supply. In order that the travel path of the pedal will not be unnecessarily long when the pressure supply is intact, an arresting piston member is used, which limits the stroke of the control valve. The arresting piston member is combined with means which, upon failure of the pressure supply, permit its use as a further main cylinder piston. In this manner, a compact and lightweight structure of the brake force amplifier is possible. The brake force amplifier is preferably used in passenger vehicles.

REFERENCES:
patent: 3927915 (1975-12-01), Adachi
patent: 3961828 (1976-06-01), Eckert et al.
patent: 4231620 (1980-11-01), Leiber

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