Patent ID: 6962481
Filing Date: 2005-11-08
Classification: F01D,F02B,F05D,Y02T

Abstract:
1. A turbocharger in which gas is directed through a first annular passage ( 30 ) to the turbine, including a housing ( 18 , 24 , 26 , 126 ), a ring of guide blades ( 34 ) in the first annular passage ( 30 ), which are mounted pivotably on a nozzle ring ( 138 ) defining one boundary of the first annular passage, and an annular actuating ring ( 48 , 148 ) coupled to pivot the blades by movement of the actuating ring in relation to the nozzle ring, and a suspension mechanism ( 55 ) for the actuating ring ( 48 , 148 ) which brings about a coaxial location of the nozzle ring and the actuating ring relative to each other and about the turbine shaft, wherein rollers ( 49 , 149 ) are provided about one of the inner and outer circumference of the actuating ring, which rollers are provided in a second annular passage ( 70 , 170 ) formed between a housing part ( 126 ) and the nozzle ring ( 38 , 138 ), wherein each of the rollers ( 149 ) includes at least on axial extension, which is rotatably seated in a bore in one of the nozzle ring ( 38 , 138 ), the housing part ( 126 ), and both.