Seal system for an interturbine duct within a gas turbine...

Details Seal system for an interturbine duct within a gas turbine... Seal system for an interturbine duct within a gas turbine...

2006-09-11

2010-12-28

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S135000, C415S136000, C415S214100, C060S799000, C277S641000, C277S630000, C277S910000

Reexamination Certificate

active

07857576

ABSTRACT:
The interturbine duct (ITD) directs hot combustion gases from a high pressure turbine stage outlet to a low pressure turbine stage inlet in a gas turbine engine. The ITD comprises an outer wall and a heat resistant non-metallic resilient annular seal provided around an end of the outer wall that is adjacent to the high pressure turbine stage outlet.

REFERENCES:
patent: 4331338 (1982-05-01), Caldwell et al.
patent: 5330321 (1994-07-01), Roberts et al.
patent: 2006/0045732 (2006-03-01), Durocher et al.
patent: 2007/0160471 (2007-07-01), Welch

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