Brake pipe continuity valve system

Details Brake pipe continuity valve system Brake pipe continuity valve system

1992-03-12

1993-01-19

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Miscellaneous operations on control pipe

303 81, B60T 1126

Patent

active

051802139

ABSTRACT:
A brake pipe continuity valve system permits the coupling of a pusher locomotive such that the engineer on the lead locomotive retains control of the entire train brake system including the pusher locomotive. The end-of-train device remains coupled to the air brake pipe line of the train, and a valve connects the air brake line pressure of the train with the air brake pipe of the pusher locomotive, upon moving the valve to an open position. The valve is automatically closed at the end of the pushing operation by the engineer on the pusher locomotive such that the brake pipe air remains intact throughout the main train including the end-of-train device, while isolating the pusher locomotive permitting it to back off at the end of the pushing operation.

REFERENCES:
patent: 4520662 (1985-06-01), Schmid
patent: 4763875 (1988-08-01), Chew
patent: 4978179 (1990-12-01), Balukin

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