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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.:

US 9470230 B1

PDFFull Text
Date of Patent:
Oct. 18, 2016

Filed:

Apr. 25, 2011

Refrigerant compressor and refrigeration cycle apparatus using the same

Applicants:

Masaki Koyama, Tokyo, JP;

Eiji Sato, Tokyo, JP;

Inventors:

Masaki Koyama, Tokyo, JP;

Eiji Sato, Tokyo, JP;

Assignee:

Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited, Kowloon Bay KLN, HK;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Peter J Bertheaud

Int. Cl.
CPC ...
F04C 18/02 (2006.01); F04C 29/02 (2006.01); F04C 15/00 (2006.01); F04C 23/00 (2006.01); F04B 39/02 (2006.01); F04C 28/08 (2006.01); F25B 31/00 (2006.01); F25B 49/02 (2006.01); F04C 29/04 (2006.01); F25B 13/00 (2006.01);
U.S. Cl.
CPC ...
F04C 29/021 (2013.01); F04B 39/0207 (2013.01); F04B 39/0261 (2013.01); F04C 15/0092 (2013.01); F04C 18/0215 (2013.01); F04C 23/008 (2013.01); F04C 28/08 (2013.01); F04C 29/028 (2013.01); F25B 31/004 (2013.01); F25B 49/022 (2013.01); F04B 2203/0209 (2013.01); F04C 29/04 (2013.01); F04C 2240/806 (2013.01); F04C 2270/052 (2013.01); F25B 13/00 (2013.01); F25B 2600/021 (2013.01); F25B 2700/171 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); Y02B 30/741 (2013.01);
Abstract

A refrigerant compressor includes a sealed case, which contains a compression mechanism, a motor part, and an oil reservoir formed in a lower portion. An oil supply pipe links the oil reservoir and a suction side of the compression mechanism and introduces oil in the oil reservoir to the suction side. The amount of oil supply provided to the suction side is adjusted by detecting the rotational speed of the motor part, such that the amount of oil supply provided to the suction side of the oil supply pipe decreases as the rotational speed of the motor part increases.

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