Patent ID: 8651804

Claim:
A turbocharger ( 1 ) comprising: a turbine housing ( 2 ), a compressor housing ( 3 a ) and a center housing ( 3 ); a turbine rotor ( 4 ) rotatably mounted in the turbine housing ( 2 ); at least one first supply channel ( 9 ) for supplying an exhaust gas to rotate the turbine rotor ( 4 ); a compressor rotor ( 21 ) rotatably mounted in the compressor housing ( 3 a ); at least one second supply channel for supplying a compressible fluid to the compressor rotor ( 21 ); a shaft ( 20 ) rotatably mounted in the center housing ( 3 ) and connected to the compressor rotor ( 21 ) and turbine rotor ( 4 ) for driving the compressor rotor ( 21 ); a plurality of vanes ( 7 ) distributed in an annular vane space ( 13 ) and being movable to control flow of at least one of the exhaust gas or the compressible fluid; an adjustment ring ( 5 ) operably connected to each of the plurality of vanes ( 7 ) and being rotatable to move the plurality of vanes ( 7 ); and at least one axial movement control pin ( 300 ) extending axially from the adjustment ring ( 5 ) in the direction of the center housing, or from the center housing in the direction of the unison ring, and dimensioned to prevent the adjustment ring ( 5 ) from directly contacting the center housing ( 3 ).