Gas turbine engine cooling air flow

Details Gas turbine engine cooling air flow Gas turbine engine cooling air flow

1991-05-20

1992-10-27

Bertsch, Richard A.

Power plants

Reaction motor

Interrelated reaction motors

602263, 60261, F02K 302, F02K 310

Patent

active

051579170

ABSTRACT:
A turbofan engine uses fan air to cool bounding surfaces of the exhaust duct at all times. A portion of the fan air flow is used for augmentor combustion in the augmentation mode. In the non-augmented mode the flow for combustion is stopped and the cooling air is used to cool the tail cone and exit guide vanes. Infrared radiation is thereby reduced when non-augmented.

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patent: 4214441 (1980-07-01), Mouritsen et al.
patent: 4813229 (1989-03-01), Simmons
patent: 4926633 (1990-05-01), Nash et al.
patent: 5020318 (1991-06-01), Vdoviak

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