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:
Sep. 02, 2008
Filed:
Dec. 03, 2003
Katsumi Sakitani, Osaka, JP;
Michio Moriwaki, Osaka, JP;
Masakazu Okamoto, Osaka, JP;
Eiji Kumakura, Osaka, JP;
Tetsuya Okamoto, Osaka, JP;
Katsumi Sakitani, Osaka, JP;
Michio Moriwaki, Osaka, JP;
Masakazu Okamoto, Osaka, JP;
Eiji Kumakura, Osaka, JP;
Tetsuya Okamoto, Osaka, JP;
Daikin Industries, Ltd., Osaka-Shi, JP;
Abstract
Disclosed is a displacement type expansion machine. In the displacement type expansion machine, a communicating passage () for allowing fluid communication between an expansion-process intermediate position and an outflow position in an expansion chamber () is provided thereby to allow the fluid at the outflow side to return to the expansion chamber (). Such arrangement prevents the pressure of the expansion chamber () from being lowered to an excessive extent in predetermined operating conditions, thereby avoiding the drop in power recovery efficiency.