Assembly and method for cooling rear bearing and exhaust...

Details Assembly and method for cooling rear bearing and exhaust... Assembly and method for cooling rear bearing and exhaust...

2005-10-25

2009-02-24

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Process

C415S180000

Reexamination Certificate

active

07493769

ABSTRACT:
A propeller is mounted aft of the rear rotor supporting bearing of a gas turbine. The propeller is driven either by the rotor shaft or by the exhaust gases flowing through the exhaust frame of the turbine. The rotating propeller blows cooling air on the rear bearing. The cooling air can then be circulated through the exhaust frame to cool the exhaust frame as well.

REFERENCES:
patent: 2296701 (1942-09-01), Butler et al.
patent: 2709567 (1955-05-01), Wood
patent: 5161369 (1992-11-01), Williams
patent: 6161768 (2000-12-01), Gordon et al.
patent: 6379108 (2002-04-01), Schmidt
patent: 6450758 (2002-09-01), Schmidt
patent: 6926490 (2005-08-01), McAuliffe et al.

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