Raytheon Technologies Corporation

Rtx Corporation

Mary E Makowiec

Pantcho P Stoyanov

A method of operating a variable vane for a gas turbine includes the step of locating a first bushing at least partially surrounding a first trunnion that extends from a first end of the variable vane. The first trunnion includes an outer surface that has a plurality of troughs. The first bushing includes a plurality of peaks that extend inward from an inner surface. Relative movement is produced between the first bushing and the first trunnion to form a carbon transfer film between the first bushing and the first trunnion.

Bushing for variable vane in a gas turbine engine

A component for a gas turbine engine includes an airfoil. A first trunnion has an outer surface and extends from a first end of the airfoil. A first bushing at least partially surrounds the outer surface. At least one of the first bushing or the first trunnion includes a plurality of surface irregularities.

Growing community of inventors

Manchester, CT, United States of America

Mary E Makowiec