General Electric Company

Douglas George Shafer

Gary L Leonard

Douglas Marti Fortuna

Phillip D Napoli

Paul Edward Sabla

Peter David Toot

Mark Gerard Rettig

Jack Willard Smith, Jr

William T Houchens

Robert John VanderMolen

A turbogenerator having a gas turbine engine powering generator and a cooling system and an annular heat exchanger powered by a fan disposed across an outer fan duct of the engine. Fan variable inlet and outlet guide vanes may be used to vary power between the fan and the generator which are drivenly connected to a low pressure turbine. Inner and outer portions separated by a rotating shroud of the fan are disposed in annular inner and outer fan ducts respectively. A directed energy weapon may be powered by the generator and cooled by the cooling system. A refrigeration apparatus may be operably disposed between the annular heat exchanger and the directed energy weapon for cooling the directed energy weapon and conditioning power electronics for the weapon. The refrigeration apparatus may include a vapor cycle cooling system and a cold storage containing a phase change material.

Turbogenerator with cooling system

A brushless starter/generator includes a rotor rotatably mounted within a stator mounted within a housing and an oil cooling system using cooling oil from an engine accessory gearbox for cooling the rotor and the stator. The rotor is fixedly mounted on a rotor shaft having a rotor heat exchanger disposed therein. A stator heat exchanger for cooling the stator includes an oil jacket around the housing. The stator heat exchanger includes a grooved tube around the housing and axially extending axial passages connected to annular inlet and outlet manifolds in the grooved tube. The rotor shaft is operably connected to a power take-off shaft within the gearbox and rotatably supported by a shaft bearing in a gearbox casing of the accessory gearbox. The oil cooling system is a dry cavity oil cooling system which prevents cooling oil from entering an air gap between the rotor and the stator.

Integrated brushless starter/generator system

A fuel-air mixer for a gas turbine engine combustor having a primary swirler and a venturi that effectively reduces carboning via purge air. Purge air flows axially through the fuel-air mixer forming a boundary layer of air on the inner surface of the venturi. The boundary layer of air minimizes the amount of fuel contacting the inner surface of the venturi resulting in reduced carbon resin or coke formation.

Anti-carboning fuel-air mixer for a gas turbine engine combustor

Growing community of inventors

Cincinnati, OH, United States of America

Douglas George Shafer