Low drag inlet design using injected duct flow

Details Low drag inlet design using injected duct flow Low drag inlet design using injected duct flow

1997-10-20

1999-08-10

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft power plants

244205, 244130, 181214, 415119, B64D 3302

Patent

active

059346116

ABSTRACT:
An air intake system disposable in an air vehicle turbo engine housing disposed in an exterior airflow for selectively reducing external engine boundary layer separation drag and external engine friction drag on the engine housing comprising an air inlet member for receiving engine intake air disposable within the engine housing. The air intake system further comprising a first air exit port disposed in fluid communication with the air inlet member, adapted to direct intake air from the air inlet member and to direct intake air substantially in the direction of exterior airflow, to reduce external engine boundary layer separation drag. The air intake system further comprising a second air exit port disposed in fluid communication with the air inlet member, adapted to direct intake air from the air inlet member and to direct intake air substantially in a direction perpendicular to the exterior airflow, to reduce external engine friction drag. The air intake system further comprising a control device for regulating intake airflow through the first and second air exit ports in response to sensed external engine conditions to mitigate at least one of external engine boundary layer separation drag and external engine friction drag.

REFERENCES:
patent: 2207242 (1940-07-01), De Seversky
patent: 2270912 (1942-01-01), Theodorsen
patent: 2343655 (1944-03-01), Flader et al.
patent: 2589945 (1952-03-01), Leduc
patent: 2624281 (1953-01-01), McNally
patent: 2861419 (1958-11-01), Hausmann
patent: 2865580 (1958-12-01), Marshall
patent: 2931167 (1960-04-01), Leduc
patent: 3128973 (1964-04-01), Dannenberg
patent: 3261576 (1966-07-01), Valyi
patent: 3799475 (1974-03-01), Mitchell et al.
patent: 3821999 (1974-07-01), Guess et al.
patent: 4000869 (1977-01-01), Wong et al.
patent: 4007891 (1977-02-01), Sorensen et al.
patent: 4381017 (1983-04-01), Bissinger
patent: 4620679 (1986-11-01), Karanian
patent: 4749150 (1988-06-01), Rose et al.
patent: 5222698 (1993-06-01), Nelson et al.
patent: 5485975 (1996-01-01), Tindell
patent: 5743488 (1998-04-01), Rolston et al.
patent: 5803410 (1998-09-01), Hwang

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