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:
Jul. 03, 2007
Filed:
Oct. 05, 2004
Masaaki Takegami, Osaka, JP;
Kenji Tanimoto, Osaka, JP;
Takeo Ueno, Osaka, JP;
Akihiro Kajimoto, Osaka, JP;
Masaaki Takegami, Osaka, JP;
Kenji Tanimoto, Osaka, JP;
Takeo Ueno, Osaka, JP;
Akihiro Kajimoto, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
In the case where a 100 percent heat recovery operation mode is performed without using an outdoor heat exchanger in a refrigeration apparatus which is provided with utilization-side heat exchangers of a plurality of piping systems and in which liquid-side communication lines are arranged into a single line, a backflow prevention mechanism () for preventing liquid refrigerant exiting an indoor heat exchanger () from flowing in a direction other than in the direction of cold storage and freeze storage heat exchangers () is disposed for providing stable flow of refrigeration through the circuit even when the temperature of outside air is low, whereby the capability to provide refrigeration is prevented from degrading.