公开(公告)号：US12025156B1

公开(公告)日：2024-07-02

申请号：US18607255

申请日：2024-03-15

申请人： Taizhou Vocational College of Science & Technology ,  Wenling Fluid Machinery Technology Institute of Jiangsu University

发明人： Chao Wang ,  Zhenhua Shen ,  Jianqiang Ma ,  Jinfeng Zhang ,  Yin Luo ,  Guidong Li

IPC分类号： F04D29/66 ,  A01C23/04 ,  A01G25/02 ,  F04D1/00 ,  F04D13/06 ,  F04D13/14 ,  F04D15/00 ,  F04D29/049 ,  F04D29/40 ,  F04D29/42 ,  F04D29/44 ,  F04D29/46 ,  F04D29/48 ,  F04D29/58

CPC分类号： F04D29/669 ,  F04D1/00 ,  F04D13/06 ,  F04D13/0606 ,  F04D13/0646 ,  F04D29/049 ,  F04D29/406 ,  F04D29/426 ,  F04D29/4293 ,  F04D29/445 ,  F04D29/466 ,  F04D29/486 ,  F04D29/66 ,  A01C23/04 ,  A01G25/02 ,  F04D13/14 ,  F04D15/0005 ,  F04D29/5886

摘要： The invention discloses a water feeding pump or a fertilizer applying pump for a pump station of a fertilization and irrigation system. The water feeding pump (2) or the fertilizer applying pump (3) is a centrifugal pump. The centrifugal pump includes a volute and an impeller. The impeller includes a front disc (12), a rear disc (13), and main blades (14), and a plurality of back blades (18) distributed along a circumferential direction are disposed on a back surface of the rear disc, where an auxiliary rotating disc (11) is disposed between the impeller and a rear side wall of the volute, the auxiliary rotating disc is a rotating member and is driven by the back blades of the impeller to rotate.