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:
Jun. 08, 2010
Filed:
Jul. 01, 2005
Katsumi Sakitani, Osaka, JP;
Michio Moriwaki, Osaka, JP;
Yume Inokuchi, Osaka, JP;
Yoshinari Sasaki, Osaka, JP;
Katsumi Sakitani, Osaka, JP;
Michio Moriwaki, Osaka, JP;
Yume Inokuchi, Osaka, JP;
Yoshinari Sasaki, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
An outdoor heat exchanger (), an indoor heat exchanger (), a compression/expansion unit (), and other circuit components are connected in a refrigerant circuit (). The compression/expansion unit () includes a compression mechanism (), an electric motor (), and an expansion mechanism (). In addition, the refrigerant circuit () has an injection pipeline (). When an injection valve () is opened, a portion of high pressure refrigerant after heat dissipation flows into the injection pipeline () and is introduced into an expansion chamber () of the expansion mechanism () in the process of expansion. In the expansion mechanism (), power is recovered from both high pressure refrigerant introduced into the expansion chamber () from an inflow port () and high pressure refrigerant introduced into the expansion chamber () from the injection pipeline ().