| 摘要 |
<p>A flow control device (1) for fluids in which a duct (2) has a predetermined inner port (4a) controlled by a moving shutter member (3) and is provided, on each side of the moving shutter member (3), with a fixed shutter member (18) having a predetermined shape and adapted to cooperate with the moving shutter member (3) to define a hydraulic resistance varying according to a predetermined law which is a function of the shape of the fixed shutter member (18).</p> |
