Switch valve arrangement

Details Switch valve arrangement Switch valve arrangement

1986-12-05

1988-05-24

Reger, Duane A.

Fluid-pressure and analogous brake systems

Pipeless valves

303119, B60T 1718

Patent

active

047461721

ABSTRACT:
A switch valve arrangement (10) for changing over the inlet of a fluid pressure slave unit (16-19) from the outlet of a first fluid generator (5 or 6) to the outlet of a second fluid pressure generator (1, 13), during switch-on of the second fluid pressure generator for brake systems of automotive vehicles. The arrangement comprises a first valve (V.sub.1) which, upon switch-on of the second fluid pressure generator (1, 13) blocks the connection between the first pressure geneator (5) and the fluid pressure slave unit (16-19), and comprises a second valve (V.sub.2) releasing the connection between the second fluid pressure generator (1, 13) and the fluid pressure slave unit (16-19). Upon switch-on of the second fluid pressure generator (1, 13), provision is made so that the second valve (V.sub.2), with a fluid-releived first valve (V.sub.1) and a fluid pressure-loaded second valve (V.sub.2), takes its blocking position, thereby permitting a pressure decrease on the part of the second fluid pressure generator in the event of a conduit break between the first fluid pressure generator and the fluid pressure slave unit to be precluded.

REFERENCES:
patent: 3883189 (1975-05-01), Braun
patent: 4523792 (1985-06-01), Belart et al.
patent: 4557528 (1985-12-01), Leiber

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