General Electric Company

US Government As Represented by the Secretary of the Army

Samuel Rothrock Barr

William Steyer

Thomas Chew

James Leroy Nye

An infrared suppression system is provided for an aircraft gas turbine engine for reducing the level of emitted infrared radiation from the engine exhaust. The hot exhaust stream emitted from the engine is mixed with the cooling airflows received from a plurality of sources in order to more effectively reduce the level of emitted infrared radiation. In addition, the infrared suppression system prohibits a direct line of sight back into the core engine.

Infrared suppression system for a gas turbine engine

Sand and dust erosion of turbine engines by ingested particulate matter is major problem facing both airframe and engine manufacturers. Various types of particle separators are used to keep sand and dust out of the engine. In these separators the particles are diverted by swirl vanes and similar devices to keep them out of the engine. An inlet scroll separator herein permits the particles to continue their course of travel and diverts the air stream, reducing power requirements and eliminating swirl and deswirl vanes.

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Swampscott, MA, United States of America

Samuel Rothrock Barr