| 摘要 |
<p>A multi-circuit protection valve unit for air pressure-operated actuators in a vehicle comprises air inlet (4) and outlets (20,23,27,28) to a central region (12). A control (2) processes a signal of outlet pressure and compares it with a stored reference pressure. A signal is sent to a pressure regulation-unit and compressed air applied if necessary. Independent claims are also included for the following: (a) an air brake for a vehicle, especially a railed vehicle or truck; (b) a vehicle as above;and (c) an operating process for the above.</p> |
