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:
Nov. 27, 2012
Filed:
Apr. 02, 2008
Atsuo Okaichi, Osaka, JP;
Yasufumi Takahashi, Osaka, JP;
Hiroshi Hasegawa, Osaka, JP;
Masaru Matsui, Kyoto, JP;
Fuminori Sakima, Osaka, JP;
Atsuo Okaichi, Osaka, JP;
Yasufumi Takahashi, Osaka, JP;
Hiroshi Hasegawa, Osaka, JP;
Masaru Matsui, Kyoto, JP;
Fuminori Sakima, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An expander-compressor unit () includes: a closed casing () holding an oil at a bottom portion thereof; a motor () provided in the closed casing (); a compression mechanism () for compressing a refrigerant and discharging it into the closed casing (), the compression mechanism () being disposed below the motor () in the closed casing (); an expansion mechanism () disposed below the compression mechanism () in the closed casing (); and a coupling mechanism () for coupling a compression mechanism side shaft () to an expansion mechanism side shaft (). An oil supply passage () for supplying the oil to the compression mechanism () is formed in the compression mechanism side shaft (). An oil suction port (A) is provided in a portion of the compression mechanism side shaft (), the portion being above the expansion mechanism ().