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. 31, 2017
Filed:
Oct. 19, 2016
Johnson Controls-hitachi Air Conditioning Technology (Hong Kong) Limited, Kowloon Bay KLN, HK;
Ryuichiro Yonemoto, Tokyo, JP;
Yasuaki Iizuka, Tokyo, JP;
Eisuke Kato, Tokyo, JP;
Shu Kuriyama, Tokyo, JP;
Masahiro Takebayashi, Tokyo, JP;
Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited, Kowloon Bay (KLN), HK;
Abstract
A screw compressor and a chiller unit are provided. An oil separator of the screw compressor may include an outer cylinder, an inner cylinder positioned inside the outer cylinder, and an introducing flow path. The upper end of the inner cylinder is held by the oil separator and the outer wall of the inner cylinder is held independently of the inner wall of the outer cylinder. The diameter of the inner wall of the outer cylinder may gradually be reduced along the swirl flow path. The refrigerant via the introducing passage swirls and goes down along the swirl flow path and is separated into gas refrigerant and oil. The separated gas refrigerant flows from the lower end of the inner cylinder into the inner cylinder and goes up, and the separated oil flows down along the inner wall surface of the outer cylinder.