Patent ID: 6793468
Filing Date: 2004-09-21
Classification: F01D,F02C,F05C,F05D,F16C

Abstract:
In a turbocharger for an internal combustion engine, the improvement comprises a radial bearing is provided for supporting a rotary shaft and comprises a brass alloy in which an Mnâ€”Si compound is crystallized in a brass base material, wherein said Mnâ€”Si compound is elongated in an axial direction of said rotary shaft and is dispersed, wherein said brass alloy contains 54 to 64 wt % of Cu, 0.2 to 3.0 wt % of Si, 0.2 to 7.0 wt % of Mn, 0.5 to 3.5 wt % of Al, and a remainder substantial of Zn.