Invention Grant
- Patent Title: Rotary shaft device and vertical shaft fluid power generator
-
Application No.: US14396644Application Date: 2013-04-10
-
Publication No.: US09657713B2Publication Date: 2017-05-23
- Inventor: Yuji Shirakawa , Yuki Hayashi
- Applicant: THK CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: THK CO., LTD.
- Current Assignee: THK CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-101268 20120426
- International Application: PCT/JP2013/060823 WO 20130410
- International Announcement: WO2013/161566 WO 20131031
- Main IPC: F03D3/06
- IPC: F03D3/06 ; F03D80/70 ; F16C33/58 ; F16C19/18 ; F16C19/16 ; H02K7/18 ; F03D3/00 ; F16C3/02
Abstract:
A rotary shaft device (3) includes a shaft body (20) rotatably supported by angular bearings (35, 36), and a support body (40) configured to rotatably support the shaft body (20) via the angular bearings (35, 36). A ball rolling groove (21) having a Gothic arch shape in which rolling elements (39) of the angular bearings (35, 36) roll is formed in an outer circumferential surface of the shaft body (20).
Public/Granted literature
- US20150098797A1 ROTARY SHAFT DEVICE AND VERTICAL SHAFT FLUID POWER GENERATOR Public/Granted day:2015-04-09
Information query
