Device for injecting cooling air into a turbine rotor

Details Device for injecting cooling air into a turbine rotor Device for injecting cooling air into a turbine rotor

2006-10-10

2006-10-10

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With bimetallic blade, vane, or adjustment means therefor

C415S191000

Reexamination Certificate

active

07118322

ABSTRACT:
A device for injecting cooling air into a turbo-machine turbine rotor includes a plurality of injectors distributed regularly around a longitudinal axis of the turbomachine and mounted between an inner shroud and an outer shroud. Each injector has a bimetallic structure with a first metal material forming a major portion of the structure of the injector and having a first coefficient of thermal expansion, and a second metal material forming a complementary portion of the structure in the vicinity of the suction side wall meeting the trailing edge of the injector, and having a second coefficient of thermal expansion that is smaller than the first.

REFERENCES:
patent: 3038698 (1962-06-01), Troyer
patent: 3042371 (1962-07-01), Fanti
patent: 4619580 (1986-10-01), Snyder
patent: 5133643 (1992-07-01), Ortolano
patent: 5207558 (1993-05-01), Hagle et al.
patent: 961 742 (1957-04-01), None
patent: 2 019 793 (1979-11-01), None
patent: 2 372 296 (2002-08-01), None

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