Electric power generation using power turbine aft of LPT
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United States of America Patent
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Apr 7, 2009
Grant Date -
Jun 19, 2008
app pub date -
Dec 15, 2006
filing date -
Dec 15, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An inside out generator disposed aft of the low-pressure turbine spool to generate power for the electrical demands of an aircraft system. The low-pressure turbine discharge flow is used to drive the power turbine, which is coupled to the generator. The generator is able to extract power at idle conditions of the aircraft engine from ducting the discharge through the inside out generator. The system eliminates the placement of a generator in the hot gas path of the discharge, and enables the injection of power directly to the accessory gear box of the engine.
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