Non-circular pins for closure group assembly
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[0025]The following embodiments of the present invention have many advantages, including improving the performance of turbine wheels by providing a fully bladed closure design.
[0026]The fully bladed closure design for a tangential entry dovetail utilizes three bladed buckets, including a bladed closure bucket and an adjacent bladed bucket on each side of the bladed closure bucket. The adjacent bladed buckets provide a flat skirt dovetail on their circumferential face adjacent to the bladed closure bucket. The flat skirt at the interface of the bladed closure bucket and the adjacent bladed bucket allows the full width of the flat skirt on each face to support a retaining key there-between.
[0027]FIG. 2 illustrates an exemplary inventive turbine wheel including a male dovetail portion on substantially an entire periphery of the wheel. The turbine wheel 100 includes a male dovetail 110 portion on substantially an entire periphery of the wheel. The male dovetail 110 may include one or mo...
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