发明名称 |
Non-clogging impeller for use in axial and mixed-flow centrifugal pumps |
摘要 |
The vane of the impeller in a high-speed or mixed-flow centrifugal pump for the conveying of liquids which contain high or low concentrations of strands or strips of vegetable, plastic or other material has a convex inlet edge whose curvature increases gradually in a direction radially outwardly from the axis of rotation at such a rate that the resultant of the centrifugal force and the resistance encountered by a strip or strand at a particular point of the inlet edge is invariably tangential to the respective point of the inlet edge. This ensures that the strips or strands do not overlie and circulate with the inlet edge but are entrained by the resultant force to become separated from the vane. The stagnation paint of the vane in a region which is remote from the axis of rotation is disposed at the suction side of the vane; this also contributes to prevention of accumulation of strips or strands along the inlet edge.
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申请公布号 |
US4775297(A) |
申请公布日期 |
1988.10.04 |
申请号 |
US19870024310 |
申请日期 |
1987.03.10 |
申请人 |
KLEIN, SCHANZLIN & BECKER AKTIENGESELLSCHAFT |
发明人 |
BERNAUER, JAN |
分类号 |
F04D29/18;(IPC1-7):B63H1/26 |
主分类号 |
F04D29/18 |
代理机构 |
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地址 |
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