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. 01, 2018
Filed:
Apr. 19, 2013
Applicant:
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Inventors:
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/04 (2006.01); F25D 19/00 (2006.01); F25B 49/02 (2006.01); F25B 1/10 (2006.01); F25B 9/00 (2006.01); F25B 13/00 (2006.01);
U.S. Cl.
CPC ...
F25B 49/027 (2013.01); F25B 1/10 (2013.01); F25B 9/002 (2013.01); F25B 13/00 (2013.01); F25B 2313/006 (2013.01); F25B 2313/0233 (2013.01); F25B 2313/0272 (2013.01); F25B 2313/02741 (2013.01); F25B 2400/13 (2013.01); F25B 2600/2509 (2013.01); F25B 2600/2517 (2013.01); F25B 2700/2103 (2013.01); F25B 2700/21152 (2013.01);
Abstract
A refrigeration apparatus uses R32 as a refrigerant, and includes a compressor, a condenser, an expansion mechanism, an evaporator, an intermediate injection channel and a suction injection channel. The intermediate injection channel guides a part of the refrigerant flowing from the condenser toward the evaporator to the compressor, causing the refrigerant to merge with intermediate-pressure refrigerant of the compressor. The suction injection channel guides a part of the refrigerant flowing from the condenser toward the evaporator to the suction passage, causing the refrigerant to merge with low-pressure refrigerant sucked into the compressor.