Brake valve

Details Brake valve Brake valve

1986-01-13

1987-04-14

Nilson, Robert G.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

303 54, F16K 1114, B60T 1506

Patent

active

046570462

ABSTRACT:
A brake valve for feeding selectably different levels of fluid pressure into at least one pressure receiver, which is a component of a vehicle brake system. The brake valve includes a first, normally open valve having a ball and a second valve, which is normally closed by a closing spring and which likewise has a ball. The latter ball is pressed by pressure provided by a pressure supply apparatus against a ball seat. A compensation piston acted upon by this pressure is also provided, which presses against the ball in the opening direction of the second valve. Because of the compensation piston, the second valve is easily opened, so that brake pressure can be sensitively controlled.

REFERENCES:
patent: 2698205 (1954-12-01), Gagen
patent: 4090533 (1978-05-01), Harries
patent: 4463561 (1984-08-01), Leiber

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