COMPOUND ENGINE ASSEMBLY WITH OFFSET TURBINE SHAFT, ENGINE SHAFT AND INLET DUCT

摘要

A compound engine assembly with an inlet duct, a compressor, an engine core including at least one internal combustion engine, and a turbine section including a turbine shaft configured to compound power with the engine shaft. The turbine section may include a first stage turbine and a second stage turbine. The turbine shaft and the engine shaft are parallel to each other. The turbine shaft, the engine shaft and at least part of the inlet duct are all radially offset from one another. A method of driving a rotatable load of an aircraft is also discussed.

主权项

1. A compound engine assembly comprising:
an inlet duct having an inlet in fluid communication with ambient air around the compound engine assembly; a compressor having an inlet in fluid communication with the inlet duct, the compressor including at least one compressor rotor connected to a turbine shaft; an engine core including at least one internal combustion engine in driving engagement with an engine shaft, the engine core having an inlet in fluid communication with an outlet of the compressor; a turbine section having an inlet in fluid communication with an outlet of the engine core, the turbine section including at least one turbine rotor connected to the turbine shaft, the turbine shaft configured to compound power with the engine shaft; wherein the turbine shaft and the engine shaft are parallel to each other; and wherein the turbine shaft, the engine shaft and a longitudinal central axis of at least part of the inlet duct are all radially offset from one another.