| 摘要 |
The invention is related to a device (100) for variable restriction of flows, comprising a feed end (120) and a delivery end (122), a first restriction means (136) which has a first restrictive surface (135) against said delivery end (122) to regulate the flow through said device, the restrictive surface (135) being at least as large as the cross-section (150) of the delivery end (122), and the first restriction means (136) being suspended via more than one first lever arm (112, 162, 172, 182), whereby the first restriction means (136) is vertically movably arranged in relation to the delivery end (122) such that the distance between the first restriction means (136) and the delivery end (122) increases when the flow increases and inclinably arranged in relation to the delivery end (122). |
