Patent ID: 7104759

Claim:
A compressor wheel mounting a plurality of compressor blades, each blade comprising; an airfoil having a leading edge, a base attachment and a platform between the airfoil and the base attachment, the base attachment having side faces between end faces, said end faces facing in opposite generally axial directions of said blade attachment; said platform having flanges projecting from opposite sides of the blade and cantilevered over at least portions of said side faces; said airfoil being carried by said platform with said leading edge overlying a portion of said cantilevered flange along one side of said blade; the wheel including a generally axially extending groove having a cross sectional configuration corresponding generally to the cross sectional configuration of said base attachment for receiving and retaining the blade on the wheel, said groove having sidewalls and generally axially extending recesses along opposite sides of the groove for receiving the flanges of said blade; and wherein said wheel has an outer rim with said recesses being inset from said outer rim, and further wherein upon assembly, underside surfaces of said flanges are seated on shoulders of said recess, outer surfaces of said flanges lie substantially flush with the outer wheel rim, and said side faces of said base attachment are engaged with said side walls.