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:
May. 14, 2002
Filed:
Jul. 05, 2000
Applicant:
Inventors:
Takeo Komatsubara, Osaka-fu, JP;
Toshiyuki Ebara, Osaka-fu, JP;
Assignee:
Sanyo Electric Co. Ltd., Osaka-fu, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 3/100 ;
U.S. Cl.
CPC ...
F25B 3/100 ;
Abstract
There is provided an apparatus where a first cooler and a second cooler are provided in a refrigeration circuit and difluoromethane having its temperature lowered by these devices is let into a rotary compressor and compressed therein. As a result, the apparatus with high performance and reliability is provided without impairment of the chemical stability of lubricant oil or difluoromethane if the difluoromethane is used as a refrigerant.