Rotor for jet turbine engine having both insulation and...

Details Rotor for jet turbine engine having both insulation and... Rotor for jet turbine engine having both insulation and...

2006-07-05

2008-11-11

Nguyen, Ninh H (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S199500, C415S174400, C415S177000

Reexamination Certificate

active

07448843

ABSTRACT:
A gas turbine engine is provided with a seal disk that rotates in a closely spaced relationship to a stationary vane. The stationary vane is provided with an abradable tip. The seal disk is provided with alternating portions of a relatively insulating material and a relatively abrasive material. The insulating material can assist the seal disk in resisting thermal expansion. The abrasive material abrades the abradable tip of the stationary vane, ensuring a close, rotating fit.

REFERENCES:
patent: 4738586 (1988-04-01), Harter
patent: 5603603 (1997-02-01), Benoit et al.
patent: 6358002 (2002-03-01), Good et al.
patent: 6720087 (2004-04-01), Fried et al.

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