Williams International

Williams Research Corporation

Arthur M Davis

Warren J Pollington

A unitary turbine wheel for a gas turbine engine, the turbine wheel including a pair of initially separate discs which are diffusion bonded together and define air passageways which extend radially through the discs. A plurality of initially separate turbine blades are provided each of which defines cooling air passageways, and the turbine blades are diffusion bonded in angularly spaced relationship to the peripheral surfaces of the discs with the air passageways in the blades communicating with the air passageways defined by the discs. Means is provided for drivably connecting the turbine wheel to a turbine shaft, and in a preferred embodiment, the turbine blades have a thermally insulating coating on the exposed surfaces thereof.

Cooled turbine wheel

The disclosure relates to a ring type seal with positive self centering anti-rotation characteristics intended to enhance seal life and reliability by elimination of lateral displacement forces arising from conventional anti-rotational features which may cause uneven or excessive seal wear. The invention disclosed is particularly suited to segmented ring seal constructions.

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Wixom, MI, United States of America

Arthur M Davis