Suppression of infrared radiation emissions from jet engines
AssigneePhillips Petroleum Company
InventorsHenry E. Alquist, Robert M. Schirmer
Life of this patent
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Abstract
A reduction in the emission of infrared radiation by the engine of a jet aircraft can be achieved by employing a low molecular weight monohydric alcohol, having a luminometer number of at least about 200 as at least a portion of the fuel. Additional reduction in emission of infrared radiation can be achieved by passing a low molecular weight monohydric alcohol in indirect heat exchange relationship with the hot exhaust nozzle prior to its introduction to the combustion chamber of the engine.
Claims8
In the operation of a turbojet engine, a method of suppressing infrared radiation comprising introducing into said engine a fuel mixture of a low molecular weight monohydric alcohol and conventional hydrocarbon fuel in proportion so the luminometer number of the blend is in the range of about 200 to about 600.
Dependencies are inferred from the claim text.