Exhaust nozzle mixer for a turbofan engine

Details Exhaust nozzle mixer for a turbofan engine Exhaust nozzle mixer for a turbofan engine

1996-10-17

1998-05-26

Casaregola, Louis J.

Power plants

Reaction motor

Air passage bypasses combustion chamber

60 3931, F02K 148, F02K 304

Patent

active

057550921

ABSTRACT:
An exhaust nozzle mixer for a turbojet engine is disclosed having a multi-lobed shroud extending from the exhaust nozzle of the turbojet engine, the shroud having a plurality of radially oriented lobes forming a plurality of gas mixing channels, each having a first cross-section in a plane extending substantially perpendicular to the longitudinal axis of the engine, as well as a flared lobe having a greater circumferential width than the remainder of the lobes to accommodate the engine mounting pylon. A baffle member extends radially inwardly from the mounting pylon toward the longitudinal axis of the engine such that the baffle extends into the flared lobe to form a plurality of cross-sections, each of such cross-sections being generally equal to each of remainder of the cross-sections of the multi-lobed shroud.

REFERENCES:
patent: 4238092 (1980-12-01), Brennan
patent: 4712750 (1987-12-01), Ridgwell
patent: 4813230 (1989-03-01), Braithwaite
patent: 5216879 (1993-06-01), Zysmann
patent: 5265807 (1993-11-01), Steckbeck et al.
patent: 5444912 (1995-08-01), Folmer
patent: 5524847 (1996-06-01), Brodell et al.

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