Patent ID: 7559199
Filing Date: 2009-07-14
Classification: F01D,F02C,F05D

Abstract:
1. A turbocharger having a variable-nozzle turbine, comprising: a turbine assembly comprising a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft for rotation therewith, the turbine housing defining a chamber surrounding the turbine wheel for receiving exhaust gas from an engine and for supplying the exhaust gas to the turbine wheel, the turbine assembly defining a nozzle leading from the chamber generally radially inwardly to the turbine wheel, the turbine housing further defining an axially extending bore through which exhaust gas is discharged after passing through the turbine wheel; a compressor assembly comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft for rotation therewith; a center housing connected between the compressor housing and the turbine housing; and a cartridge connected between the center housing and the turbine housing, the cartridge comprising an assembly of: wherein the turbine housing includes a surface directly contacting a surface of the nozzle ring that faces axially toward the insert for axially locating the nozzle ring relative to the turbine housing, and the nozzle ring is structured and arranged relative to the center housing such that radial locating of the nozzle ring is performed by the center housing.