Abstract: A seal assembly between a disc cavity and a hot gas path in a gas turbine engine includes a stationary vane assembly and a rotating blade assembly axially upstream from the vane assembly. A platform of the blade assembly has a radially outwardly facing first surface, an axially downstream facing second surface defining an aft plane, and a plurality of grooves extending into the second surface such that the grooves are recessed from the aft plane The grooves are arranged such that a circumferential space is defined between adjacent grooves During operation of the engine, the grooves impart a circumferential velocity component to purge air flowing out of a disc cavity through the grooves to guide the purge air toward a hot gas path such that the purge air flows in a desired direction with reference to a direction of hot gas flow through the hot gas path.

Abstract: A seal assembly between a disc cavity and a hot gas path in a gas turbine engine includes a stationary vane assembly and a rotating blade assembly axially upstream from the vane assembly. A platform of the blade assembly has a radially outwardly facing first surface, an axially downstream facing second surface defining an aft plane, and a plurality of grooves extending into the second surface such that the grooves are recessed from the aft plane The grooves are arranged such that a circumferential space is defined between adjacent grooves During operation of the engine, the grooves impart a circumferential velocity component to purge air flowing out of a disc cavity through the grooves to guide the purge air toward a hot gas path such that the purge air flows in a desired direction with reference to a direction of hot gas flow through the hot gas path.

Abstract: An apparatus is provided for organizing and cleaning fasteners used in a dynamoelectric machine. The apparatus includes a frame having a first end wall and a second end wall opposed to the first end wall, and a plurality of shelves connected to and located between the first end wall and the second end wall. At least one of the shelves includes a plurality of concave regions, that are configured to retain at least one of the fasteners. A mounting region is provided for the attachment of a fastener clamp. The fasteners from the dynamoelectric machine can be stored on the plurality of shelves and displayed.

Abstract: An apparatus is provided for organizing and cleaning fasteners used in a dynamoelectric machine. The apparatus includes a frame having a first end wall and a second end wall opposed to the first end wall, and a plurality of shelves connected to and located between the first end wall and the second end wall. At least one of the shelves includes a plurality of concave regions, that are configured to retain at least one of the fasteners. A mounting region is provided for the attachment of a fastener clamp. The fasteners from the dynamoelectric machine can be stored on the plurality of shelves and displayed.

Abstract: A method of manufacturing a turbine blade includes (a) supporting a turbine blade internal core support at opposite ends such that radially inner and outer ends of the turbine blade remain open during casting; (b) casting the blade including the airfoil portion, wherein the radially outer edge of the airfoil portion is inclined relative to horizontal; (c) machining the radially outer edge of the airfoil portion to form a peripheral shoulder about a radially outer opening in the airfoil portion; and (d) seating a tip cap on the peripheral shoulder and fixing the tip cap to the airfoil portion of the blade.