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    • 4. 发明授权
    • Impeller
    • 叶轮
    • US08469671B2
    • 2013-06-25
    • US12223010
    • 2007-01-20
    • Günther BeezHolger Conrad
    • Günther BeezHolger Conrad
    • F04D29/38
    • F04D29/2216F04D29/242
    • The invention relates to closed impellers (1) for centrifugal pumps used for conveying homogeneous liquids, especially in cooling systems of motor vehicles. The aim of the invention is to develop a novel design of closed impellers (1) for centrifugal pumps used for conveying homogeneous liquids, especially in coolant pumps, such that closed impellers comprising single-curved blades (3) as well as closed impellers comprising three-dimensionally curved blades (3) can be produced at a low cost while the effect of cavitation wear is minimized on the parts/subassemblies that are mounted downstream of the impeller and the hydraulic efficiency as well as the suction behavior of the respective impeller design is significantly improved. The aim is achieved by a closed impeller (1) for centrifugal pumps which is characterized in that the width of the blade channel continuously increases from the feeding point of the flow into the impeller to the discharge point of the flow from the impeller (1) from a perspective of the meridian section such that the ratio between the width (b2) in the discharge point and the width (b1) at the feeding point ranges from 1.01 to 1.2.
    • 本发明涉及用于输送均质液体的离心泵的封闭叶轮(1),特别是在机动车辆的冷却系统中。 本发明的目的是开发用于离心泵(1)的新型设计,所述离心泵用于输送均匀的液体,特别是在冷却剂泵中,使得包括单曲面叶片(3)的封闭式叶轮以及包括三个 可以以低成本制造三维曲面叶片(3),同时在安装在叶轮下游的部件/子组件上最小化空化磨损的影响,并且液压效率以及相应叶轮设计的抽吸性能是 明显改善。 目的是通过用于离心泵的封闭式叶轮(1)实现,其特征在于,叶片通道的宽度从进入叶轮的流动的进料点到来自叶轮(1)的流量的排放点连续增加, 从子午线部分的角度考虑,放电点宽度(b2)与馈电点宽度(b1)之间的比例为1.01〜1.2。