Aeronautics and astronautics – Aircraft power plants
Patent
1989-10-13
1991-02-05
Barefoot, Galen
Aeronautics and astronautics
Aircraft power plants
138 39, B64D 3302
Patent
active
049898078
ABSTRACT:
A horizontal inlet section of a jet engine diffuser extends to a transitional curved section which, in turn, extends to a horizontal outlet section offset from the horizontal inlet section to shield observation of infrared and microwave signals from a downstream jet engine. A vane between the inlet and transitional curved sections further shields the observable signals and deflects inlet airflow against the interior wall of the diffuser for minimizing separation of boundary layer airflow from the wall. A backward facing slot is formed in the wall transversely adjacent the vane for effecting low energy boundary airflow to further minimize boundary layer airflow separation.
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Foreman Kenneth M.
Jenkins Richard C.
Barefoot Galen
Grumman Aerospace Corporation
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