The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 10, 2020

Filed:

Apr. 27, 2016
Applicant:

Hangzhou Sanhua Research Institute Co., Ltd., Hangzhou, Zhejiang, CN;

Inventors:

Lianjing Niu, Zhejiang, CN;

Rongrong Zhang, Zhejiang, CN;

Junfeng Bao, Zhejiang, CN;

Junchao Zhang, Zhejiang, CN;

Jun Zhang, Zhejiang, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 13/06 (2006.01); F04D 25/06 (2006.01); F04D 29/22 (2006.01); F04D 1/00 (2006.01); F04D 29/24 (2006.01); F04D 29/02 (2006.01); F04D 17/10 (2006.01); F04D 29/62 (2006.01); F04D 29/20 (2006.01);
U.S. Cl.
CPC ...
F04D 25/06 (2013.01); F04D 1/00 (2013.01); F04D 17/10 (2013.01); F04D 29/026 (2013.01); F04D 29/2216 (2013.01); F04D 29/2222 (2013.01); F04D 29/242 (2013.01); F04D 29/624 (2013.01); F04D 13/0673 (2013.01); F04D 29/20 (2013.01); F05D 2240/301 (2013.01); F05D 2240/305 (2013.01); F05D 2240/306 (2013.01);
Abstract

A centrifugal pump is provided, which includes a rotor assembly, the rotor assembly includes an impeller including multiple blades and a blade fixing portion, the blades and the blade fixing portion are integrally formed by injection molding, and the blades are circumferentially distributed at equal intervals along the blade fixing portion. The blade includes a first side, a second side, a blade top portion and a blade root portion, and the blade root portion and the blade fixing portion are fixed by injection molding. The blade top portion is a cantilever end of the blade, and the first side and the second side are arranged between the blade root portion and the blade top portion. The rotor assembly arranged in such manner can improve the hydraulic efficiency and lift of the centrifugal pump.


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