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    IMPELLER FOR A CENTRIFUGAL PUMP
    2.
    发明公开
    IMPELLER FOR A CENTRIFUGAL PUMP 审中-实审

    公开(公告)号：EP4397866A3

    公开(公告)日：2024-09-04

    申请号：EP24176535.3

    申请日：2019-12-19

    申请人： Grundfos Holding A/S

    发明人： Csányi, Róbert

    IPC分类号： F04D29/42 ,  F04D7/04 ,  F04D29/22 ,  F04D29/24

    CPC分类号： F04D7/045 ,  F04D29/2288 ,  F04D29/4293 ,  F04D29/242 ,  F05D2240/30320130101

    摘要： The present disclosure refers to an impeller (19) for being installed in a centrifugal pump,
    wherein the impeller (19) comprises an impeller base (31) and one or more vanes (33) extending from the impeller base (31), wherein each of the impeller vanes (33) comprises a radially innermost vane path (45) describing during impeller rotation a central volume (41) that widens away from the impeller base (31), wherein each of the impeller vanes (33) comprises a leading edge (57) extending from a leading edge base point (61) at the impeller base (31) to a leading edge ridge point (63) at a vane ridge surface (37), wherein the leading edge (57) is backwardly swept from the leading edge base point (61) to the leading edge ridge point (63), wherein the leading edge (57) has a distance in radial and/or circumferential direction from the radially innermost vane path (45).