05934611 is referenced by 35 patents and cites 21 patents.

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.

Title
Low drag inlet design using injected duct flow
Application Number
8/954553
Publication Number
5934611
Application Date
October 20, 1997
Publication Date
August 10, 1999
Inventor
Charles A Parente
Oyster Bay
NY, US
Runyon H Tindell
Old Bethpage
NY, US
Agent
Karl J Hoch Jr
Terry J Anderson
Assignee
Northrop Grumman Corporation
CA, US
IPC
B64D 33/02
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