Patent ID: 6354815
Filing Date: 2002-03-12
Classification: F01D,F05D,F16B

Abstract:
A turbocharger having a rotor with an exhaust driven turbine wheel drivingly connected with an intake charge compressor wheel rotatable on a common axis, said turbocharger comprising:a support including an upstanding mounting portion adapted to be secured to a base and a tapering rotor support portion rotatably supporting the rotor on the axis with the compressor wheel disposed on a first axial end of the support portion and the turbine wheel disposed on an opposite second end of the support portion; an exhaust duct for conducting exhaust gas passing from the turbine wheel to an exhaust outlet, the support mounting portion connected with the exhaust duct at an interface; a plurality of spaced mounts provided at said interface on the support mounting portion, the mounts having axially opposite faces; connecting mounts on the exhaust duct and including opposing faces; wear pads between and engaging faces of the spaced mounts and the opposing faces of the connecting mounts; and resilient means urging the spaced mounts and connecting mounts together with a force adequate to retain the support and the exhaust duct in assembly but limited to allow sliding motion of the wear pads on the opposing faces of the connecting mounts and the spaced mounts; the wear pads limiting heat transfer from the exhaust duct to the support to prevent high exhaust gas temperatures in the exhaust duct from causing excessive rotor operating temperatures in the support.