STEAM TURBINE
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Feb 27, 2020
app pub date -
Dec 19, 2017
filing date -
Dec 19, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A steam turbine according to an embodiment of the present invention includes: a rotor configured to rotate about an axis; a casing which houses the rotor rotatable; and a first stage including a first-stage stationary vane fixed to an inner wall portion of the casing and a first-stage rotor blade fixed to the rotor at downstream of the first-stage stationary vane. The rotor includes a first cavity having a concave shape and being formed on a portion facing the first-stage stationary vane, the first cavity being in communication with an inner space defined between the inner wall portion and the rotor at upstream of the first-stage stationary vane. The first-stage stationary vane includes a first-stage through hole which is in communication with the first cavity and which is formed through the first-stage stationary vane in a radial direction.
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