Pressure control valve for compressed-air-actuated vehicle brake

Details Pressure control valve for compressed-air-actuated vehicle brake Pressure control valve for compressed-air-actuated vehicle brake

1990-12-19

1992-03-31

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Automatic

Synchronizing

303118, 303119R, B60T 1552

Patent

active

051002086

ABSTRACT:
A pressure control valve having a pressure fluid inlet chamber connected to a pressure fluid source via a brake valve. A pressure fluid outlet chamber of the pressure control valve communicates with a brake cylinder. The pressure fluid inlet chamber and the pressure fluid outlet chamber can be connected to a control chamber via an inlet valve. The pressure fluid outlet chamber can be connected to the atmosphere via a controllable outlet valve. From the pressure fluid outlet chamber, a first connecting conduit leads to the control chamber of the inlet valve. The first connecting conduit can be monitored by a control valve embodied as a 2/2-way valve. A second connecting conduit, which is always open, is also provided between the control chamber of the inlet valve and the pressure fluid inlet chamber. This conduit exerts a delaying action upon pressure fluid flowing at high speed through it. The pressure control valve is usable in compressed-air-actuated vehicle brake systems, in particular those having an anti-skid system.

REFERENCES:
patent: 3950035 (1976-04-01), Tribe
patent: 4193643 (1980-03-01), Knight
patent: 4210370 (1980-07-01), Mortimer
patent: 4643491 (1987-02-01), McCann et al.
patent: 4740041 (1988-04-01), Pannbacker

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