Turbine static structure for reduced leakage air
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United States of America Patent
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Jun 14, 2011
Grant Date -
Jun 26, 2008
app pub date -
Dec 21, 2006
filing date -
Dec 21, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A turbine static structure having reduced leakage air is disclosed. A static structure turbine support ring having few segments is disclosed in which the segments have improved thermal expansion capability with reduced air leakage. A plurality of radially extending slots are placed in the segments to reduce stiffness. In order to minimize air leakage through the support ring, generally circumferential slots are placed in the ring and connect with the generally radially extending slots. Positioned in each of the generally radially extending slots and generally circumferential slots, and in contact with each other, are two sheet metal plates. The plates are staked to the support ring structure so as to provide a seal member, yet compensate for thermal growth.
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