Brake control valve

Details Brake control valve Brake control valve

1989-10-19

1990-10-16

Ostrager, Allen M.

Power plants

Pressure fluid source and motor

Pulsator

60581, 60588, B60T 1108, F15B 704

Patent

active

049636928

ABSTRACT:
A brake control valve has a valve bore, a piston member and an end member closing one end of the valve bore. One of the piston and end members has a projection and the other member has a corresponding blind bore for sealingly receiving the projection. The blind bore and the projection are spaced apart axially in the rest position of the piston. Upon axial movement of the piston the projection is sealingly received by the blind bore so that the effective working area of piston is reduced. By means of appropriate channels and grooves the chamber surrounding the projection is connected to reservoir.

REFERENCES:
patent: 4072012 (1978-02-01), Kawakami
patent: 4483145 (1984-11-01), Takeuchi et al.

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