公开(公告)号：US20230049932A1

公开(公告)日：2023-02-16

申请号：US17881777

申请日：2022-08-05

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jian LI ,  Shuang WANG ,  Langlang LI

IPC: F04D29/042 ,  F04D25/06 ,  F04D29/043 ,  F04D29/046 ,  F04D29/42

Abstract: Embodiments of this application provide a centrifugal pump. The centrifugal pump includes a pump casing and a first drive mechanism, a second drive mechanism, a pump shaft, and an impeller that are disposed in the pump casing. The pump casing includes a first chamber and a second chamber that are connected. An axis of the pump shaft coincides with axes of the first chamber and the second chamber. An inner diameter of the second chamber is greater than that of the first chamber. The impeller is connected to an end of the pump shaft. The first drive mechanism and the second drive mechanism are connected to the pump shaft and located on a side, away from the impeller, of the pump shaft. The first drive mechanism is configured to drive the pump shaft to rotate.