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:
Oct. 21, 2025
Filed:
Nov. 15, 2022
Qingdao Haier Refrigerator Co., Ltd, Shandong, CN;
Haier Smart Home Co., Ltd., Shandong, CN;
Feifei Qi, Shandong, CN;
Jianru Liu, Shandong, CN;
Kui Zhang, Shandong, CN;
Yiming Wang, Shandong, CN;
Hualong Chi, Shandong, CN;
QINGDAO HAIRER REFRIGERATOR CO., LTD, Qingdao, CN;
HAIER SMART HOME CO., LTD., Qingdao, CN;
Abstract
The present application discloses an oil supply device of a compressor, a compressor and a refrigeration equipment, the oil supply device of a compressor comprising: a piston cylinder with an inner chamber, a piston, an outer housing, and an oil intake passage and an oil discharge passage, the oil intake passage comprises an oil intake chamber, an oil inlet and an oil outlet; the side wall of the oil intake chamber has an arcuate flow guide portion to direct flow between the oil inlet and the oil outlet. The application can create a vortex in the oil intake chamber after the oil entering the oil intake chamber from the oil inlet, thereby improving the oil suction efficiency.