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Patent Searching and Data


Title:
STEAM VALVE DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163626
Kind Code:
A1
Abstract:
A steam valve driving device according to an embodiment of the present invention is configured so that a control valve permits or stops the flow of hydraulic oil from a supply opening to an open-direction piston chamber. A dump valve stops or permits the flow of hydraulic oil from the open-direction piston chamber to a discharge opening. A stop valve permits or stops the flow of hydraulic oil from an accumulator to a close-direction piston chamber. The control valve permits the flow of control oil from the close-direction piston chamber to the discharge opening while permitting the flow of the hydraulic oil from the supply opening to the open-direction piston chamber.

Inventors:
MIYAJIMA Hidekazu (Horikawa-cho Saiwai-ku, Kawasaki-sh, Kanagawa 13, 〒2120013, JP)
Application Number:
JP2019/005275
Publication Date:
August 29, 2019
Filing Date:
February 14, 2019
Export Citation:
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Assignee:
KABUSHIKI KAISHA TOSHIBA (1-1 Shibaura 1-chome, Minato-ku Tokyo, 23, 〒1050023, JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION (72-34, Horikawa-cho Saiwai-ku, Kawasaki-sh, Kanagawa 13, 〒2120013, JP)
International Classes:
F01D17/26; F01D21/00; F01D21/16
Foreign References:
JPS562406A1981-01-12
JPS4927703A1974-03-12
JPH08165905A1996-06-25
JP2012082795A2012-04-26
JP2013543957A2013-12-09
JP2003056306A2003-02-26
JPS63156401U1988-10-13
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (Kyowa Patent & Law Office, Nippon Life Marunouchi Building 1-6-6, Marunouchi, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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