Supersonic aircraft jet engine

Details Supersonic aircraft jet engine Supersonic aircraft jet engine

2007-10-09

2010-11-23

Collins, Timothy D (Department: 3644)

Aeronautics and astronautics

Aircraft power plants

C244S11000H, C244S129400

Reexamination Certificate

active

07837142

ABSTRACT:
Jet engine inlet structure of a supersonic aircraft comprising the structure having an inlet ramp and an cowl lip spaced outwardly of the ramp so that entering air flows between the ramp and lip, the lip and ramp configured to produce a first oblique shock that extends outwardly from a forward portion of the ramp to pass ahead of the lip, and a terminal shock that extends outwardly from a rearward portion of the ramp to one of the followingx0) a region just ahead of the lipx1) substantially to said lip.A non-uniform shock system is created that generates a central region of nearly isentropic compression and relatively ram recovery and an outer region of reduced ram recovery but entailing reduced cowl angle and drag. Translating cowl structure and also nozzle integration with the fuselage contour to reduce boat tail drag are also provided.

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