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:
Oct. 30, 2012
Filed:
Jan. 30, 2008
Satoshi Kawano, Osaka, JP;
Shinya Matsuoka, Osaka, JP;
Masahiro Oka, Osaka, JP;
Kazuhide Mizutani, Osaka, JP;
Satoshi Kawano, Osaka, JP;
Shinya Matsuoka, Osaka, JP;
Masahiro Oka, Osaka, JP;
Kazuhide Mizutani, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
An outdoor unit () including a compressor () and an outdoor heat exchanger () and an indoor unit () including an indoor heat exchanger () are provided. The outdoor unit () and the indoor unit () constitute a main circuit () of a refrigerant circuit (). A sub-circuit () whose one end is connected to a liquid line () of the main circuit () and another end is connected to a low-pressure gas line () of the main circuit (), and which stores refrigerant in the main circuit () is also provided. The sub-circuit () is located on a sub-passageway (), and includes: a refrigerant regulator () for storing refrigerant in the main circuit (); and a switch mechanism () for establishing and blocking communication between the refrigerant regulator () and each of the liquid line () and the low-pressure gas line (). When the amount of refrigerant in the main circuit () is excessive, redundant refrigerant in the main circuit () is stored in the refrigerant regulator ().