Knife Edge Seal for Gas Turbine Engine
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United States of America Patent
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Issued Date -
Oct 3, 2013
app pub date -
Mar 27, 2012
filing date -
Mar 27, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A seal for a gas turbine engine and a gas turbine engine employing such a seal are disclosed. More specifically, the engine includes a knife edge seal which is better able to withstand the extremely high temperatures and mechanical loads to which gas turbine engine components are increasingly subjected. By moving the knife edge seal to the aft hub and cantilevering its angle off of vertical, thermal and mechanical loads are balanced and thus thermal mechanical fatigue life is improved while low cycle fatigue is maintained.
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