United Technologies Corporation

William A Agli, Iii

Edward F Pietraszkiewicz

Justin D Piggush

Dean N Marszal

Scott W Gayman

A blade is provided for a turbine engine that includes an exterior surface. The exterior surface includes a portion having a thermal barrier coating and an uncoated shelf adjacent to the thermal barrier coating without the thermal barrier coating. A cooling hole extends from an internal passageway through the exterior surface to an exit. A scarfed channel is recessed in the exterior surface and interconnected to the cooling hole at the exit. The scarfed channel extends to a blade tip end surface. The scarfed channel protects the cooling fluid exiting the cooling hole from secondary flows surrounding the blade that would otherwise mix with and disperse the cooling fluid. The scarfed channels also increase the surface area exposed to the cooling fluid to increase the heat transfer rate.

Turbine engine blade cooling

A fixture locator comprising a fixture base comprising a first receptive chamber extending along a base centerline comprising a first receptive surface; and two base wedge slots extending into the fixture base and intersecting the first receptive surface; a machine tool mount, comprising a first mating member extending along a mount centerline comprising an outer surface adapted to fit within the first receptive chamber such that the mount centerline is congruent with the base centerline, and two mount wedge slots extending into the machine tool mount a dual wedge which comprises a first wedge prong and a second wedge prong each comprising a first and a second end symmetrically disposed about a wedge centerline, a wedge bridge adapted to connect the first ends of the first and second wedge prongs, and a fastening member adapted to removably fasten the second ends of the first and second wedge prongs wherein each of the first and second wedge prongs are adapted to extend in contact with one of the base wedge slots and the mount wedge slots.

Growing community of inventors

Meriden, CT, United States of America

William A Agli, Iii