High temperature airfoil
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 1, 2001
Issued Date -
N/A
app pub date -
Jul 8, 1998
filing date -
Jul 8, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high temperature repairable airfoil having a plurality of flow path cover tiles coupled to a single crystal spar member. In one embodiment, the plurality of flow path cover tiles include an attachment portion that is received within a groove formed in the outer surface of the spar. The attachment portion slides into a retaining feature within the groove so as to limit movement of the plurality of flow path cover tiles. Upon rotation of the airfoil, the plurality of flow path cover tiles become centrifugally loaded with a portion of the spar member. In one embodiment, the plurality of flow path cover tiles are formed of a material selected from the group consisting of ceramics, intermetallic, and thermal barrier coated single crystal alloy material.
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