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. 15, 2013
Filed:
Sep. 24, 2009
Tsuyoshi Yonemori, Osaka, JP;
Yoshinari Sasaki, Osaka, JP;
Takahiro Yamaguchi, Osaka, JP;
Manabu Yoshimi, Osaka, JP;
Tsuyoshi Yonemori, Osaka, JP;
Yoshinari Sasaki, Osaka, JP;
Takahiro Yamaguchi, Osaka, JP;
Manabu Yoshimi, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A leakage diagnosis apparatus for diagnosing presence/absence of refrigerant leakage in a refrigerant circuit performing a refrigeration cycle, wherein refrigerant leakage diagnosis using the amount of refrigerant exergy loss in a circuit component of the refrigerant circuit is realized. In a leakage diagnosis apparatus, an exergy calculation section calculates a leakage index value which changes in accordance with the amount of refrigerant leaking out of a refrigerant circuit based on the amount of refrigerant exergy loss in the circuit component. Then, a leakage determination section determines whether there is refrigerant leakage in the refrigerant circuit based on the leakage index value calculated by the exergy calculation section.