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Title:
BACK-FLOW DEVICE BLADE, COMPRESSOR STRUCTURE AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/205631
Kind Code:
A1
Abstract:
Provided are a back-flow device blade, a compressor structure and a compressor. The back-flow device blade (4) comprises a blade body (1), wherein a hollow cavity (2) is formed inside the blade body (1), and an air supplementing hole (3) is formed on the blade body (1). When the hollow back-flow device blade (4) is used, the supplementing air entering the hollow cavity of the back-flow device blade (4) through an air supplementing channel (5) forms a jet flow on a suction face of the back-flow device blade (4), thereby blowing away a low speed low energy area formed by the suction face so as to reduce air flow blending loss, prevent secondary impeller air intake distortion, and expand the operating range of a compressor.

Inventors:
LIU, Zengyue (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
ZHONG, Ruixing (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
JIANG, Nan (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
JIANG, Caiyun (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
CHEN, Yuhui (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
ZHOU, Yi (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
LEI, Liandong (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
OUYANG, Xinwang (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
Application Number:
CN2017/118108
Publication Date:
November 15, 2018
Filing Date:
December 22, 2017
Export Citation:
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Assignee:
GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD (No.888, Dongfeng Avenue Economic & Technology Development Zone, Wuhan Hubei 0, 430000, CN)
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI (West Jinji Road, QianshanZhuhai, Guangdong 0, 519070, CN)
International Classes:
F04D29/44; F04D17/08
Foreign References:
CN107013497A2017-08-04
CN107023516A2017-08-08
CN104595247A2015-05-06
CN101608631A2009-12-23
CN106194783A2016-12-07
CN204532973U2015-08-05
US3749520A1973-07-31
US20060115358A12006-06-01
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (Room 3901, No.85 Huacheng Avenue Tianhe Distric, Guangzhou Guangdong 3, 510623, CN)
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