| 摘要 |
<p>The invention consists of a standardised module of a power valve which can be programmed having an interface with a standardised arrangement of conduit openings, provided to enable a complex system to be built up. This power valve module consists of standardised valve components capable of operating in three directions, in two directions, in a normally open operation, or in a abnormally closed operation. This interface has in the centre, the right, and the left, openings for power output, having standardised dimensions and locations and, to the right and left, passages of standard size and location for signals. The invention avoids the use of a considerable amount of pipes.</p> |
