公开(公告)号：US20170159555A1

公开(公告)日：2017-06-08

申请号：US15325183

申请日：2015-07-07

Applicant: BORG WARNER INC.

Inventor： Jair REYES ,  Rajendra VEMULA ,  Guenther GUTH

IPC: F02B37/24 ,  F01D17/16

CPC classification number: F02B37/24 ,  F01D17/165 ,  F02C6/12 ,  F05D2220/40 ,  F05D2230/51 ,  F05D2230/52 ,  F05D2250/90 ,  F05D2300/506 ,  Y02T10/144

Abstract: An adjustment ring (50) is configured to facilitate vane (30) position adjustment in a variable turbine geometry turbocharger (1), and is formed of an assembly of one or more first ring portions (60) that are formed of a first material, and one or more second ring portions (61) that are formed of a second material. The first material has different material properties than the second material. In some embodiments, high-wear portions of the adjustment ring (50) can selectively and cost-effectively be formed of wear-resistant material while remaining portions are formed of a conventional material. A cost-effective method of manufacturing multi-piece adjustment rings (50) is described.