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:
Apr. 30, 2024
Filed:
Aug. 24, 2020
Gree Electric Appliances, Inc. of Zhuhai, Qianshan Zhuhai, CN;
Mingzhu Dong, Zhuhai, CN;
Yusheng Hu, Zhuhai, CN;
Huijun Wei, Zhuhai, CN;
Jia Xu, Zhuhai, CN;
Zhongcheng Du, Zhuhai, CN;
Liping Ren, Zhuhai, CN;
Sen Yang, Zhuhai, CN;
Zhi Li, Zhuhai, CN;
Peilin Zhang, Zhuhai, CN;
Shebing Liang, Zhuhai, CN;
Zhengliang Shi, Zhuhai, CN;
Rongting Zhang, Zhuhai, CN;
Ning Ding, Zhuhai, CN;
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai, CN;
Abstract
The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while rotating. The piston sheath is located in the cylinder, and a compression chamber is defined between an outer circumferential wall of the piston and an inner wall of the cylinder. A pressure relief recess is defined in the outer circumferential wall of the piston or the inner wall of the cylinder at a position corresponding to the compression chamber.