Turbine, manufacturing method thereof, and power generating system
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United States of America Patent
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Mar 21, 2017
Grant Date -
Jan 23, 2014
app pub date -
Jun 19, 2013
filing date -
Jul 20, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A turbine according to an embodiment includes: a formation object member; a facing member; and a seal part. A formation object member is one of a static part and a rotation part. A facing member is the other of the static part and the rotation part. A seal part at the formation object member is configured to reduce combustion gas leaking between the formation object member and the facing member. The seal part including a ceramics layer. The ceramics layer has a heat conductivity lower than that of the formation object member, and has a concave and convex shape at a surface thereof. The ceramics layer is not in contact with the facing member, or has hardness higher than that of the facing member so that the facing member is preferentially abraded when the facing member and the ceramics layer are in contact with each other.
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