发明名称 Backflow preventer for a fluid
摘要 An annular gap (29) permitting passage of the fluid is present between the sealing element (20) and the cylindrical casing (26) of the fluidic damping device (23). The fluidic damping device (23) has an adjustable valve-spring bracing device (32) which is arranged, for example, on the base (35), connected to the cylindrical casing (26), of the fluidic damping device (23). The valve-spring bracing device (32) has, for example, elements which define the relative position of the base (35) with respect to the housing (4), in the form of a sleeve (41) connected to the base (35) and having an edge (47) rising along a helical line and bearing against a projection (44) of the housing (4). Said valve-spring bracing device also has an adjusting device (50) for adjusting the sleeve (41) about its longitudinal axis (53). The sleeve (41) which is connected to the base (35) and, for example, also to the cylindrical casing (26) is mounted so that it can rotate and be displaced, for example, between webs (59, 61) of the housing (4). <IMAGE>
申请公布号 DE3446425(A1) 申请公布日期 1986.06.26
申请号 DE19843446425 申请日期 1984.12.20
申请人 DEUTSCHE VORTEX GMBH 发明人 SCHMIDT,HANS-DIETER,DIPL.-ING.;KUEHL,HANS-DIETER
分类号 E03C1/10;(IPC1-7):E03C1/10 主分类号 E03C1/10
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