| 摘要 |
<p>Pneumatic time-switched actuator device which is inserted in a pneumatic pipe under pressure and loads and stands loaded accumulating compressed air. Whenever there is a quick pressure decrease in the pipe upstream the measured quantity of air accumulated in the device is automatically deflected for a time-switched flow to perform every kind of task. The device runs down and remounds automatically when the pressure in the upstream pneumtic pipe is recovered.</p> |
