Invention Grant
- Patent Title: Compressor
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Application No.: US14346701Application Date: 2012-08-29
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Publication No.: US09709058B2Publication Date: 2017-07-18
- Inventor: Takehiro Kanayama , Naoto Tomioka , Yuuichirou Watanabe
- Applicant: Takehiro Kanayama , Naoto Tomioka , Yuuichirou Watanabe
- Applicant Address: JP Osaka
- Assignee: Daikin Industries, Ltd.
- Current Assignee: Daikin Industries, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors, LLP
- Priority: JP2011-208781 20110926
- International Application: PCT/JP2012/071832 WO 20120829
- International Announcement: WO2013/047063 WO 20130404
- Main IPC: F04C18/04
- IPC: F04C18/04 ; F04C29/02 ; F01C21/10 ; F04C18/356 ; F04C18/063 ; F04C23/00

Abstract:
A compressor includes a closed container, a compression element disposed in the closed container, and a motor disposed in the closed container to drive the compression element via a shaft. The compression element includes a first and second bearings supporting the shaft. At least one cylinder having at least one cylinder chamber is disposed between the first and second bearings, with at least one roller fitted to the shaft disposed in the at least one cylinder chamber. The first bearing is disposed closer to the motor than the second bearing. The first and second bearings have first and second annular grooves formed in first and second opposing surfaces opposed to end faces of the at least one roller. The first and second annular grooves are opened to the at least one cylinder chamber. A width of the second annular groove is larger than a width of the first annular groove.
Public/Granted literature
- US20140227116A1 COMPRESSOR Public/Granted day:2014-08-14
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