Scramjet fuel injection system having independent fuel supplies

Details Scramjet fuel injection system having independent fuel supplies Scramjet fuel injection system having independent fuel supplies

1994-12-20

1997-08-26

Thorpe, Timothy

Power plants

Internal combustion engine with treatment or handling of...

Material from exhaust structure fed to engine intake

60204, 60243, F02K 708

Patent

active

056600402

ABSTRACT:
A fuel injector for a scramjet engine includes independently manifolded normal (48, 54) and axial fuel injection (56). Various construction details are developed that provide effective performance of the fuel injector over a range of speed and combustor conditions. In a particular embodiment the fuel injector has a wedge shape with a swept leading edge. The fuel injector includes a pair of sidewalls, a top surface, a downstream facing surface, and a plurality of apertures in the sidewalls, top surface and downstream facing surface. At speeds less than hypersonic (normal injection), fuel is injected into the combustor from the apertures in the sidewalls (48) and top surface (54). At hypersonic speeds (axial injection), fuel is injected through the apertures in the downstream facing surface (56).

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