General Electric Company

Jacob S Hoffman

Joseph Douglas Monty

William Steyer

John Michael Jasany

Mario E Abreu

Christopher Marlow Kieffer

Thomas G Hill

An infrared signature suppression system for reducing infrared radiation emitted by a vehicle. The system includes an elongate duct mounted on the vehicle having a hollow interior extending along an axial centerline between an upstream end and a downstream end for transporting exhaust gas emitted by the vehicle, and a baffle positioned in the hollow interior of the duct between the upstream end and the downstream end. At least a portion of at least one of the duct and the baffle includes an emissivity coating for reducing infrared radiation emitted by the vehicle.

Method and apparatus for suppressing infrared signatures

A combustor effective for reducing exhaust emissions is disclosed. The combustor includes first and second liners defining a primary combustion zone, and a plurality of circumferentially spaced carburetors. Each of the carburetors includes a fuel injector providing fuel into an air swirler for mixing the air and fuel and providing a fuel/air mixture into the combustor primary zone. The combustor also includes means for obtaining a fuel distribution from each of the carburetors extending radially from a first liner upstream end through a center region of the combustor to a second liner upstream end with values of the fuel distribution at the center region being generally no greater than about values of the fuel distribution adjacent to at least one of the first and second liners. The first and second liners have upstream portions characterized by the absence of film cooling thereof.

Low emissions combustor

A diffuser is provided for achieving efficient conversion of the dynamic head associated with pressurized fluid into static pressure. The diffuser includes structure for reducing the boundary layer accumulated by the fluid during flow in the diffuser and for turning the fluid within the diffuser flowpath.

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Ipswich, MA, United States of America

Jacob S Hoffman