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:
Mar. 19, 2013
Filed:
May. 21, 2009
Yu Shiotani, Osaka, JP;
Hiroshi Hasegawa, Osaka, JP;
Takeshi Ogata, Osaka, JP;
Shingo Oyagi, Osaka, JP;
Masanobu Wada, Osaka, JP;
Osamu Kosuda, Osaka, JP;
Yu Shiotani, Osaka, JP;
Hiroshi Hasegawa, Osaka, JP;
Takeshi Ogata, Osaka, JP;
Shingo Oyagi, Osaka, JP;
Masanobu Wada, Osaka, JP;
Osamu Kosuda, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A fluid machine () includes a first compressor () and a second compressor (). The first compressor () has a first closed casing (), a first compression mechanism (), an expansion mechanism (), and a shaft (). A first oil reservoir () is formed in the first closed casing (). The second compressor () has a second closed casing () and a second compression mechanism (). A second oil reservoir () is formed at a bottom portion in the second closed casing (). The first closed casing () and the second closed casing () are connected to each other by an oil passage () so that a lubricating oil can flow between the first oil reservoir () and the second oil reservoir (). An opening () of the oil passage () on a side of the first closed casing () is located above the expansion mechanism () with respect to the vertical direction. This configuration prevents the low temperature lubricating oil in a surrounding space of the expansion mechanism () and the high temperature lubricating oil in the second compressor () from flowing. Thereby, the heat transfer between the first compressor () and the second compressor () is suppressed.