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. 17, 2020

Filed:

Sep. 20, 2016
Applicant:

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

Inventors:

Lianjing Niu, Zhejiang, CN;

Chen Fang, Zhejiang, CN;

Ri Zhou, Zhejiang, CN;

Junfeng Bao, Zhejiang, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/24 (2006.01); F04D 13/06 (2006.01); F04D 29/22 (2006.01); F04D 29/30 (2006.01);
U.S. Cl.
CPC ...
F04D 29/242 (2013.01); F04D 13/0606 (2013.01); F04D 29/2216 (2013.01); F04D 29/2255 (2013.01); F04D 29/30 (2013.01);
Abstract

An impeller is provided, which includes an upper plate, blades, and a lower plate. The blades are arranged between the upper plate and lower plate. The upper plate includes an upper surface and a lower surface, the blades are integrally formed with the upper plate by injection molding, and the blades are located at the lower surface of the upper plate. The blades include first blades. Each of the first blades includes one arc, a combination of multiple arcs, or a combination of multiple arcs and straight lines. The first blades are uniformly distributed along a circumference of the upper plate, and the first blade includes a first tail, and the first tail of the first blade make a first side of the first blade have no intersection with an outer edge of the upper plate.


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