| 摘要 |
<p>12 An emergency and parking air brake air supply system includes a quick release valve, a two way check valve, an emergency and parking air supply tank and a pilot check valve, in conjunction with a conventional quick release valve or another type of exhaust valve, automatically supplies air to the service brake chamber from the air supply tank whenever the spring brake supply line is vented so full service brake braking force is achieved.</p> |
