VARIABLE VANE MECHANISM FOR TURBOCHARGER WITH UNISON RING AND BEARING MEMBERS HAVING INDEPENDENT MATERIAL CHARACTERISTICS

摘要

A turbocharger 112 includes a variable vane mechanism 200 comprising a unison ring 226 and at least one bearing member 234 that is fixed to the unison ring. The bearing member 234 includes a bearing surface 246 that supports rotation of the unison ring within the variable vane mechanism. The unison ring and the at least one bearing member have independent material characteristics.