| 摘要 |
<p>The regulator has input (2) and output (3), with a valve (4) between. The valve has a piston (5) controlled by a membrane (8) and a spring (7). The piston has discs (9,12) at each end. Two sliding blocks (14,17) between the discs form the controlled passage, moving parallel to the piston to close against the discs. A spring (15) between the blocks closes the valve if there is no flow.</p> |
