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:
Feb. 14, 2017
Filed:
Jul. 10, 2013
Johnson Controls-hitachi Air Conditioning Technology (Hong Kong) Limited, Kowloon Bay KI.N, 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, HK;
Abstract
A screw compressor is disclosed, which includes a male rotor and a female rotor and an oil separator. The oil separator includes an outer cylinder, an inner cylinder located inside the outer cylinder, and an introducing flow path. An upper end portion of the inner cylinder is held by the oil separator and an outer wall of the inner cylinder is held independently of the inner wall of the outer cylinder. A diameter of an inner wall of the outer cylinder is configured so that the diameter is gradually reduced along a swirl flow path. Moreover, refrigerant that flowed in swirls and goes down along the swirl flow path. The separated gas refrigerant flows from a lower end portion of the inner cylinder into the inner cylinder and goes up and the separated oil flowing down along the inner wall surface of the outer cylinder.