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.
Patent No.:
Date of Patent:
Nov. 30, 2021
Filed:
Dec. 22, 2017
Gree Electric Appliances (Wuhan) Co., Ltd., Wuhan, CN;
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, CN;
Zengyue Liu, Zhuhai, CN;
Ruixing Zhong, Zhuhai, CN;
Nan Jiang, Zhuhai, CN;
Caiyun Jiang, Zhuhai, CN;
Yuhui Chen, Zhuhai, CN;
Yi Zhou, Zhuhai, CN;
Liandong Lei, Zhuhai, CN;
Xinwang Ouyang, Zhuhai, CN;
Gree Electric Appliances (Wuhan) Co., Ltd., Wuhan, CN;
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, CN;
Abstract
Embodiments of the present disclosure describe a reflux device blade and a compressor. The reflux device blade includes a blade main body, a hollow cavity is formed in the blade main body, and an air supplement hole is formed in the blade main body. When the hollow reflux device blade is adopted, the supplemental air entering the hollow cavity of the reflux device blade through an air supplement channel forms jet flow on a suction surface of the reflux device blade to blow off a low-speed low-energy area formed on the suction surface, so as to reduce the airflow mixing loss, prevent the intake distortion of a second-stage impeller, and improve the operation range of the compressor.