Raytheon Technologies Corporation

Christopher M Juh

Jonathan Jeffery Eastwood

Scott Daniel Virkler

Ross Wilson

A power turbine rotor locking assembly including a rotor shaft. The assembly also includes an aft rotor stage surrounding the rotor shaft. The assembly further includes a locknut torqued to the rotor shaft. The assembly yet further includes a plurality of torque resistance features located on an aft side of the aft rotor stage. The assembly also includes a tooling fixture having a plurality of corresponding torque resistance features, the corresponding torque resistance features selectively engageable with the torque resistance features of the aft rotor stage to resist circumferential movement during assembly and disassembly of the locknut with the rotor shaft.

Turbine rotor locking assembly and method

A trim balance device for a gas turbine engine having a rotatable shaft extending along a central longitudinal axis of the gas turbine engine includes a trim balance nut that is at least partially disposed about the rotatable shaft. The trim balance nut defines an aperture that extends from a first trim balance nut end towards a second trim balance nut end along the central longitudinal axis. The aperture being arranged to receive and seat a balance weight.

Gas turbine engine having a trim balance

A power turbine rotor assembly including a rotor shaft. The assembly also includes a rotor stack surrounding the rotor shaft. The assembly further includes a nut axially retaining the rotor stack. The assembly yet further includes a Vernier ring engaged with the nut and the rotor shaft, the Vernier ring having an inner ring, a plurality of inner tabs extending radially inward from the inner ring, and a plurality of outer tabs extending radially outward from the inner ring, the Vernier ring formed of at least two ring segments.

Growing community of inventors

Hobe Sound, FL, United States of America

Christopher M Juh