Abstract: A turbine housing can include a bearing housing end and a treatment unit end; a volute wall that defines a volute; a wall that defines at least a portion of a turbine wheel space that defines a turbine wheel space axis and a turbine wheel space diameter, where the wall extends to an axial peak to define an extended space with an extended space outlet having an extended space outlet dimension; and an outlet wall that defines an outlet space with a treatment unit end outlet having an outlet dimension, where the extended space is disposed at least in part axially between the turbine wheel space and the outlet space to increase axial velocity uniformity at the treatment unit end outlet.

Abstract: A crank and linkage assembly for a component of a turbocharger includes a linkage and two cranks each including a pin whose outer surface defines a pin groove. Each end of the linkage defines a through bore for receiving one of the pins. At each end of the linkage, a plurality of fingers are integrally formed and of one piece with the linkage, the fingers extending parallel to, and circumferentially spaced about, the through bore axis. The fingers are elastically bendable such that the hooks move away from the bore axis and such that a restoring force of each of the fingers acts in a direction to bend the hooks back toward the bore axis. The assembly can be assembled by a push-to-connect process in which each pin is advanced into the respective through bore until the hooks snap into the respective pin groove.

Abstract: A turbine housing can include a bearing housing end and a treatment unit end; a volute wall that defines a volute; a wall that defines at least a portion of a turbine wheel space that defines a turbine wheel space axis and a turbine wheel space diameter, where the wall extends to an axial peak to define an extended space with an extended space outlet having an extended space outlet dimension; and an outlet wall that defines an outlet space with a treatment unit end outlet having an outlet dimension, where the extended space is disposed at least in part axially between the turbine wheel space and the outlet space to increase axial velocity uniformity at the treatment unit end outlet.