Turbocharger blade with contour edge relief and turbocharger incorporating the same

A turbocharger turbine wheel (16), comprising:

• a hub (24);
• and
• a plurality of blades (26) extending radially from the hub (24), each blade (26) including a leading edge (30), a trailing edge (32), and a shroud contour edge (34) extending therebetween;
• and
• wherein at least one blade (26) includes an edge relief (40) formed along at least a portion of the shroud contour edge (34).

A turbocharger (5), comprising:

• a housing (10) including a compressor shroud (14) and a turbine shroud (12);
• a compressor wheel (18), including:
• a compressor hub (44);
• and
• a plurality of compressor blades (45, 46) extending radially from the compressor hub, each compressor blade (45, 46) including a leading edge (50, 51), a trailing edge (52, 53), and a compressor shroud contour edge (54, 55) extending therebetween;
• a turbine wheel (16), including:
• a turbine hub (24);
• and
• a plurality of turbine blades (26) extending radially from the turbine hub (24), each turbine blade (26) including a leading edge (30), a trailing edge (32), and a turbine shroud contour edge (34)extending therebetween;
• and
• wherein at least one of the compressor and turbine blades (26, 45, 46) includes an edge relief (40, 60, 61) formed along at least a portion of the corresponding compressor or turbine shroud contour edge (34, 54, 55).