Title:
ADJUSTING VALVE DRIVE MECHANISM AND STEAM TURBINE
Document Type and Number:
WIPO Patent Application WO/2015/093151
Kind Code:
A1
Abstract:
This adjusting valve drive mechanism (15) for a steam turbine is for adjusting the flow rate of steam that serves as a working fluid for a steam turbine and drives an adjusting valve (13) in which a valve (132) is used to open and close a steam path through which steam flows. The adjusting valve drive mechanism (15) is provided with: a rotary motor (151); a spur gear (154) that is made to rotate by the rotary motor (151); and a chain (155) that meshes with the teeth of the spur gear (154), advances or retreats in a predetermined advance/retreat direction (S) that is a tangential direction of the spur gear (154) in accordance with the rotation of the spur gear (154), and causes the adjusting valve (13) to advance or retreat.
Inventors:
TONAKA HIDEKI (JP)
NAGAI NAOYUKI (JP)
HARADA NARUHITO (JP)
KATAGAKE MAKOTO (JP)
NAGAI NAOYUKI (JP)
HARADA NARUHITO (JP)
KATAGAKE MAKOTO (JP)
Application Number:
PCT/JP2014/078584
Publication Date:
June 25, 2015
Filing Date:
October 28, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
International Classes:
F01D17/10; F16H19/02; F16H19/04
Domestic Patent References:
| WO1998013633A1 | 1998-04-02 | |||
| WO2013047423A1 | 2013-04-04 |
Foreign References:
| JPH08170503A | 1996-07-02 | |||
| JPH0565654U | 1993-08-31 | |||
| JPS63161266A | 1988-07-04 | |||
| JPH05139404A | 1993-06-08 | |||
| JPH08219322A | 1996-08-30 | |||
| JPH0229368U | 1990-02-26 | |||
| JP2013072349A | 2013-04-22 | |||
| JPH05257538A | 1993-10-08 |
Other References:
See also references of EP 3085903A4
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
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