GAS TURBINE ENGINE BEARING AND GEARBOX ARRANGEMENT

Organization Name

Inventor(s)

William G. Sheridan of Southington CT (US)

GAS TURBINE ENGINE BEARING AND GEARBOX ARRANGEMENT

This abstract first appeared for US patent application 18959834 titled 'GAS TURBINE ENGINE BEARING AND GEARBOX ARRANGEMENT

Original Abstract Submitted

A gas turbine engine includes a plurality of blades that deliver air into a compressor section and a drive gear system including an epicyclic transmission. A drive shaft interconnects a gear carrier of the epicyclic transmission and the plurality of blades. A turbine section drives an input of the drive gear system through a turbine shaft. The drive gear system is straddle mounted by a first bearing forward of the drive gear system and a second bearing aft of the drive gear system. A ring gear of the epicyclic transmission is coupled to an engine case with a compliant flexure at a position between the first bearing and the second bearing.