F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/27
F16J 15/44 (2006.01) F02C 7/28 (2006.01)
Patent
CA 1312888
13LN-1742 SEAL ASSEMBLY ABSTRACT OF THE DISCLOSURE A seal assembly for reducing fluid leakage around a circumferential periphery of an annular nozzle stage in a gas turbine engine includes an abradable annular seal member having an annular attachment ring attached to an outer surface, the ring including a radially extending flange portion. The side of the seal member opposite the attachment ring forms a conventional labyrinth seal with a rotating member extending from a turbine wheel. The nozzle stage includes an annular portion extending inward towards the seal member and having an axially facing area for abutting the attachment ring. The member depending from the nozzle stage in conjunction with the attachment ring forms a radially slidable seal. Tabs are provided attached to one side of the seal member for engaging the depending member from the nozzle stage for holding the seal member in sliding contact against the nozzle stage. The radial sliding relationship between the seal assembly and the nozzle stage permits differential radial movement between the attachment ring and the nozzle stage to thereby maintain the sealing relationship under differential operating temperatures.
558751
Abbott David Roert
Korzun Ronald Wayne
Salt Jonathan Gregory Lowell
Company General Electric
Oldham And Wilson
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