Title:
LINEAR MOTION MECHANISM, VALVE DEVICE, AND STEAM TURBINE
Document Type and Number:
WIPO Patent Application WO/2016/117179
Kind Code:
A1
Abstract:
A linear motion mechanism provided with a threaded shaft (30) in which a first threaded groove (30m) is formed, a nut (311) in which a second threaded groove (311m) is formed and into which the threaded shaft (30) is inserted, a load ball (316) that advances in a transfer path (M) formed by the first threaded groove (30m) and the second threaded groove (311m), a retainer frame (32) that advances through the transfer path (M), and a lubricant supply portion for supplying a lubricant (G) to the path surface of the transfer path (M). The retainer frame (32) has a retainer main body portion (321) in which a concave surface (321a) in contact with the load ball (316) is formed, and a lubricant contact portion (322) formed so as to be able to come into contact with the lubricant (G).
More Like This:
| JP5228977 | Ball screw device and electric power steering device |
| WO/2006/028124 | ROLLER SCREW |
Inventors:
TONAKA HIDEKI (JP)
NAGAI NAOYUKI (JP)
HAMAMOTO YOSHITAKA (JP)
KATAGAKE MAKOTO (JP)
NAGAI NAOYUKI (JP)
HAMAMOTO YOSHITAKA (JP)
KATAGAKE MAKOTO (JP)
Application Number:
PCT/JP2015/078757
Publication Date:
July 28, 2016
Filing Date:
October 09, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
International Classes:
F16H25/22; F01D17/10; F01D25/00; F16H25/20; F16H25/24; F16K31/44
Domestic Patent References:
| WO2004067258A1 | 2004-08-12 |
Foreign References:
| JP2013072349A | 2013-04-22 | |||
| JP2000120825A | 2000-04-28 | |||
| JP2002122204A | 2002-04-26 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
Download PDF: