System for assuring recharge of brake pipe pressure in holding p

Details System for assuring recharge of brake pipe pressure in holding p System for assuring recharge of brake pipe pressure in holding p

1989-11-06

1990-11-20

Olszewski, Robert P.

Fluid-pressure and analogous brake systems

Automatic

Equalizing valves

303 20, B60T 1134

Patent

active

049713990

ABSTRACT:
In an electropneumatic brake control system including a brake valve in which a holding position permits brake pipe recharge without effecting a concurrent release of brakes, there is provided an arrangement for preventing a release control valve of a penalty application valve from being actuated to a position in which charging of equalizing reservoir pressure is interrupted when the brake valve handle is in Holding position, as well as Release position during electropneumatic brake control, while preventing such actuation of the penalty release control valve only in Release position in the event the electropneumatic brake control is inoperative.

REFERENCES:
patent: 2580348 (1951-12-01), Erson
patent: 3504950 (1970-04-01), McClure
patent: 4013322 (1977-03-01), Worbois et al.
patent: 4113320 (1978-09-01), Balukin
patent: 4491372 (1985-01-01), Walley
patent: 4598953 (1986-07-01), Wood et al.

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