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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 (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
NAGAI Naoyuki (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
HARADA Naruhito (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
KATAGAKE Makoto (6-22 Kan-on-Shin-machi 4-chome, Nishi-ku, Hiroshima-sh, Hiroshima 53, 〒7338553, JP)
Application Number:
JP2014/078584
Publication Date:
June 25, 2015
Filing Date:
October 28, 2014
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION (34-6, Shiba 5-chome Minato-k, Tokyo 14, 〒1080014, JP)
International Classes:
F01D17/10; F16H19/02; F16H19/04
Domestic Patent References:
WO1998013633A11998-04-02
WO2013047423A12013-04-04
Foreign References:
JPH08170503A1996-07-02
JPH0565654U1993-08-31
JPS63161266A1988-07-04
JPH05139404A1993-06-08
JPH08219322A1996-08-30
JPH0229368U1990-02-26
JP2013072349A2013-04-22
JPH05257538A1993-10-08
Other References:
See also references of EP 3085903A4
Attorney, Agent or Firm:
MORI Ryuichirou et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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