| 摘要 |
<p>A trailer air distribution valve has a housing, a chamber in the housing and an air inlet port, an exhaust port, at least one service tank port, and emergency tank port and at least one brake chamber port, all in communication with the chamber. A shuttle is movable within the chamber to control communication between the ports and includes a pair of spring biased valve means functioning as check valves to control communication between the inlet port and service tank port and the emergency tank port.</p> |
