公开(公告)号：US09869326B2

公开(公告)日：2018-01-16

申请号：US14646305

申请日：2013-12-02

申请人： WILO SE

发明人： Holger Stark ,  Alfred J. Otto ,  Wolfgang Geier ,  Bernd Kretschmer ,  Wolfgang Stroessner

IPC分类号： F04D15/00 ,  F04D29/46 ,  F04D7/04 ,  F04D13/08 ,  F04D29/62 ,  F04D29/70 ,  F04D1/00 ,  F04D7/02 ,  F04D29/30 ,  F04D29/42

CPC分类号： F04D29/466 ,  F04D1/00 ,  F04D7/02 ,  F04D7/04 ,  F04D13/08 ,  F04D15/0033 ,  F04D29/30 ,  F04D29/426 ,  F04D29/622 ,  F04D29/708

摘要： The invention relates to a centrifugal pump, in particular a waste water submersible pump having an impeller (1), of which the end face facing the pump intake opening is open and only the end face of the impeller facing away from the intake opening (8) is covered by a circular coaxial impeller hub (2), on which the curved vanes (3, 4) are fastened, and in particular molded on, wherein the base plate (7) having the intake opening (8) facing the impeller (1) or at least one segment (7a) of the base plate is mounted so as to be movable against spring pressure (20) in such a way that the distance thereof from the impeller (1) and thus from the impeller vanes (3, 4) changes.

公开(公告)号：US20150292519A1

公开(公告)日：2015-10-15

申请号：US14646305

申请日：2013-12-02

申请人： WILO SE

发明人： Holger Stark ,  Alfred J. Otto ,  Wolfgang Geier ,  Bernd Kretschmer ,  Wolfgang Stroessner

IPC分类号： F04D29/46 ,  F04D29/70 ,  F04D29/30 ,  F04D29/42 ,  F04D1/00 ,  F04D7/02

CPC分类号： F04D29/466 ,  F04D1/00 ,  F04D7/02 ,  F04D7/04 ,  F04D13/08 ,  F04D15/0033 ,  F04D29/30 ,  F04D29/426 ,  F04D29/622 ,  F04D29/708

摘要： The invention relates to a centrifugal pump, in particular a waste water submersible pump having an impeller (1), of which the end face facing the pump intake opening is open and only the end face of the impeller facing away from the intake opening (8) is covered by a circular coaxial impeller hub (2), on which the curved vanes (3, 4) are fastened, and in particular moulded on, wherein the base plate (7) having the intake opening (8) facing the impeller (1) or at least one segment (7a) of the base plate is mounted so as to be movable against spring pressure (20) in such a way that the distance thereof from the impeller (1) and thus from the impeller vanes (3, 4) changes.

摘要翻译： 本发明涉及一种离心泵，特别是具有叶轮（1）的废水潜水泵，其中面向泵吸入口的端面是敞开的，只有叶轮的端面背离进气口（8） ）由圆形同轴叶轮毂（2）覆盖，弯曲叶片（3,4）紧固在其上，特别是模制在其上，其中具有进气开口（8）的基板（7）面向叶轮（ 1）或基板的至少一个部分（7a）安装成能够抵抗弹簧压力（20）移动，使得其距叶轮（1）的距离以及叶轮（3）的距离， 4）变化。