Fluid brake control system

Details Fluid brake control system Fluid brake control system

1975-08-13

1976-06-29

Reger, Duane A.

Fluid-pressure and analogous brake systems

Releasing

Motor

303 66, B60T 1532

Patent

active

039662705

ABSTRACT:
A fluid brake control system is disclosed having a brake application and release control device for governing fluid pressure in a brake cylinder. The control device comprises a housing containing a differential abutment subject to actuation from a normal position by differences in pressure between respective brake pipe and reference fluid pressure chambers on opposite sides of the abutment. At least one poppet type valve is provided in the housing on each side of the abutment, that is spring biased in the direction of the abutment to a closed position, having an operating push rod axially disposed between the associated poppet valve and the abutment. The poppet valve on one side of the abutment is opened by movement of the abutment in one direction from its normal position to permit charging of the brake cylinder pipe and the poppet valve on the other side of the abutment is opened by movement of the abutment in the opposite direction from its normal position to permit fluid to be released from the brake cylinder pipe.

REFERENCES:
patent: 2077930 (1937-04-01), Hewitt
patent: 2392185 (1946-01-01), Pickert

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