Brake control valve assembly
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United States of America Patent
Stats
-
Aug 23, 2022
Grant Date -
Jun 25, 2020
app pub date -
Dec 20, 2019
filing date -
Dec 21, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An assembly may be provided that may include a valve body having a piston within a piston bore in the valve body, the piston bore including a valve chamber section and a brake pipe section such that a pressure differential between the valve chamber section and the brake pipe section moves the piston within the piston bore. The assembly may also include a slide valve seat coupled to the valve body. The slide valve seat may include a brake pipe port, an additional discharge channel pilot valve port, and at least one exhaust port, and a slide valve coupled to the piston and configured to move along the slide valve seat with the piston. The slide valve may be configured to move between at least a piloting position and an exhaust position to vary an exhaust rate of the brake pipe section and an exhaust rate of the valve chamber section during braking.
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