Turbofan mixed flow exhaust system

Details Turbofan mixed flow exhaust system Turbofan mixed flow exhaust system

1984-04-30

1986-06-03

Casaregola, Louis J.

Power plants

Reaction motor

Air passage bypasses combustion chamber

23926519, F02K 138

Patent

active

045922012

ABSTRACT:
An improved exhaust system including a lobed mixer and an improved exhaust centerbody is provided. The improved exhaust centerbody includes means for cooperating with the lobed mixer to increase mixing effectiveness of the exhaust system without substantially increasing pressure losses attributable thereto. In a preferred embodiment of the invention, the cooperating means include a plurality of circumferentially spaced elongated deformations, such as grooves and ridges, which deformations extend radially with respect to a reference surface of the exhaust centerbody and which deformations are aligned in an axial direction substantially parallel to a longitudinal axis of the centerbody.

REFERENCES:
patent: 2641104 (1953-06-01), Estabrook
patent: 3514955 (1970-06-01), Paulson et al.
patent: 3861140 (1975-01-01), Krabacher
patent: 3927522 (1975-12-01), Bryce et al.
patent: 4045957 (1977-09-01), DiSabato
patent: 4066214 (1978-01-01), Johnson
patent: 4147029 (1979-04-01), Sargisson
patent: 4240252 (1980-12-01), Sargisson et al.

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