COMPOUND ENGINE ASSEMBLY WITH DIRECT DRIVE OF GENERATOR

摘要

A compound engine assembly for use as an aircraft auxiliary power unit, having an engine core including internal combustion engine(s) in driving engagement with an engine shaft, a generator having a generator shaft directly engaged to the engine shaft such as to be rotatable at a same speed, a compressor having an outlet in communication with the engine core inlet, and a turbine section having an inlet in communication with the engine core outlet and configured to compound power with the engine core. The turbine section may include a first stage turbine having an inlet in communication with the engine core outlet, and a second stage turbine having an inlet in communication with the first stage turbine outlet. A method of providing electrical power to an aircraft is also discussed.

主权项

1. A compound engine assembly for use as an auxiliary power unit for an aircraft, the compound engine assembly comprising:
an engine core including at least one internal combustion engine each in driving engagement with an engine shaft; a generator having a generator shaft in driving engagement with the engine shaft to provide electrical power for the aircraft, the generator and engine shafts being directly engaged to one another such as to be rotatable at a same speed; a compressor having an outlet in fluid communication with an inlet of the engine core; and a turbine section having an inlet in fluid communication with an outlet of the engine core, the turbine section configured to compound power with the engine core.