Power plants – Reaction motor – Air supplied by ram effect
Reexamination Certificate
2005-07-22
2009-08-04
Casaregola, Louis J (Department: 3746)
Power plants
Reaction motor
Air supplied by ram effect
C137S015100, C244S05300R, C703S001000
Reexamination Certificate
active
07568347
ABSTRACT:
A diverterless hypersonic inlet (DHI) for a high speed, air-breathing propulsion system reduces the ingested boundary layer flow, drag, and weight, and maintains a high capture area for hypersonic applications. The design enables high vehicle fineness ratios, low-observable features, and enhances ramjet operability limits. The DHI is optimized for a particular design flight Mach number. A forebody segment generates and focuses a system of multiple upstream shock waves at desired strengths and angles to facilitate required inlet and engine airflow conditions. The forebody contour diverts boundary layer flow to the inlet sides, effectively reducing the thickness of the boundary layer that is ingested by the inlet, while maintaining the capture area required by the hypersonic propulsion system. The cowl assembly is shaped to integrate with the forebody shock system and the thinned boundary layer region.
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Klinge John D.
Leland Bradley C.
Lundy Brian F.
Bracewell & Giuliani LLP
Casaregola Louis J
Lockheed Martin Corporation
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