Turbocharger with turbine shroud

A turbine assembly comprising:

• a turbine housing;
• a turbine wheel disposed within the turbine housing, the turbine wheel including a first end opposite a second end and a rotational axis extending between the first end and the second end, the turbine wheel including a plurality of blades;
• a turbine shroud disposed between the turbine housing and the turbine wheel along a radial direction, the turbine shroud being separate from the turbine housing, the turbine shroud including:
• an annular portion extending generally in an axial direction with respect to the rotational axis, at least a portion of the plurality of blades being disposed in at least a portion of the annular portion, and
• a plate portion intersecting the annular portion to form a convex curved surface;
• wherein each of the plurality of blades of the turbine wheel includes a leading edge and a tip portion, each leading edge being angled with respect to the rotational axis, each tip portion forming a concave portion that curves around the curved surface of the turbine shroud;
• and
• a heat shield disposed adjacent the second end of the turbine wheel, the turbine shroud being attached to the heat shield, wherein the heat shield further includes a plurality of bores extending along the radial direction for receiving a plurality of pins configured to radially attach the heat shield to a bearing housing, wherein the plurality of pins are press fit into respective bores in the heat shield and slidably received in respective bores in the bearing housing.