Empty-load valve device

Details Empty-load valve device Empty-load valve device

1988-05-26

1989-07-04

Reger, Duane A.

Fluid-pressure and analogous brake systems

Load control

Railway vehicle

303 222, B60T 822

Patent

active

048445541

ABSTRACT:
An empty-load valve device has a single housing competing coaxially a load sensing push rod, a load sensing piston, a ratio piston, a ratio valve and a spring for retracting the push rod to a normal position. The load sensing push rod actuates the ratio piston to open an equalizing valve to fill an equalizing volume from a control valve and to permit the ratio piston to limit brake cylinder pressure upon sensing an empty car.

REFERENCES:
patent: 4045094 (1977-08-01), Yanagawa et al.

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