ADJUSTING VALVE DRIVE MECHANISM AND STEAM TURBINE

An adjusting valve drive mechanism of a steam turbine drives an adjusting valve which opens and closes a steam channel, through which steam flows, by a valve element so as to adjust a flow rate of the steam serving as a working fluid of the steam turbine. The adjusting valve drive mechanism includes...

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Bibliographische Detailangaben
Hauptverfasser:	HARADA Naruhito, TONAKA Hideki, KATAGAKE Makoto, NAGAI Naoyuki
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An adjusting valve drive mechanism of a steam turbine drives an adjusting valve which opens and closes a steam channel, through which steam flows, by a valve element so as to adjust a flow rate of the steam serving as a working fluid of the steam turbine. The adjusting valve drive mechanism includes a rotary motor, a spur gear which is rotated by the rotary motor, and a chain which meshes with teeth of the spur gear, advances and retracts in a predetermined advance/retract direction which is a tangential direction of the spur gear in accordance with rotation of the spur gear, and causes the adjusting valve to advance and retract.