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:
Dec. 11, 2007
Filed:
May. 28, 2004
Takeo Ueno, Osaka, JP;
Masaaki Takegami, Osaka, JP;
Hiroto Nakajima, Osaka, JP;
Koichi Kita, Osaka, JP;
Takeo Ueno, Osaka, JP;
Masaaki Takegami, Osaka, JP;
Hiroto Nakajima, Osaka, JP;
Koichi Kita, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
In a refrigerant circuit (), a refrigerator circuit () and a freezing circuit () are connected in parallel to an outdoor circuit (). In the freezing circuit (), a freezer circuit () and a booster circuit () are connected in series. A booster compressor () and a four-way switch valve () are provided in the booster circuit (). During the time when a freezer heat exchanger () performs cooling operation for cooling the inside air, refrigerant evaporated in the freezer heat exchanger () is compressed in the booster compressor (), and then, is sucked into a variable capacitance compressor (). On the other hand, during defrosting of the freezer heat exchanger (), the refrigerant evaporated in a refrigerator heat exchanger () is compressed in the booster compressor (), and then, is supplied to the freezer heat exchanger (). The refrigerant condensed in the freezer heat exchanger () during the defrosting operation is sent back to the refrigerator heat exchanger ().