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:
May. 22, 2012
Filed:
Oct. 23, 2008
Yu Shiotani, Osaka, JP;
Takeshi Ogata, Osaka, JP;
Shingo Oyagi, Osaka, JP;
Masanobu Wada, Osaka, JP;
Yasufumi Takahashi, Osaka, JP;
Yu Shiotani, Osaka, JP;
Takeshi Ogata, Osaka, JP;
Shingo Oyagi, Osaka, JP;
Masanobu Wada, Osaka, JP;
Yasufumi Takahashi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An expander-compressor unit (A) includes a closed casing (), a compression mechanism (), an expansion mechanism (), a shaft (), and an oil pump (). The shaft () couples the compression mechanism () to the expansion mechanism () so that power recovered by the expansion mechanism () is transferred to the compression mechanism (). The oil pump () is disposed between the compression mechanism () and the expansion mechanism (), and supplies an oil held in an oil reservoir () to the compression mechanism (). An oil supply passage () is formed in the shaft () so that the oil discharged from the oil pump () can be supplied to the compression mechanism (). A lower end () of the oil supply passage () is located below an inlet () of the oil supply passage () formed in an outer circumferential surface of the shaft ().