| 摘要 |
<p>The present invention relates to an electrically controlled variable-flow valve comprising, inside a casing (1), an elastic tube (2) through which a fluid is able to flow, and a control mechanism for pinching the tube (2) by a variable amount. This control mechanism comprises: a control part (3) mounted via a pivot (4) in the casing (1) and comprising a pressure surface (5) for pinching the tube (2), as well as a sector gear (6) whose geometrical centre is the pivot (4); a pinion (10) mounted rotatably in the housing and in uninterrupted mesh with the sector gear; an electric motor (7) which turns the pinion (10); and a power source (25, 26, 27) supplying the motor (7) with a variable level of electrical power as a function of the desired flow of fluid through the tube. <IMAGE></p> |
