公开(公告)号：US20180306103A1

公开(公告)日：2018-10-25

申请号：US15493104

申请日：2017-04-20

Applicant: GM Global Technology Operations LLC

Inventor： Mark R. CLAYWELL ,  Dale A. FRANK ,  Maqsood Rizwan ALI KHAN

IPC: F02B37/18

CPC classification number: F02B37/186 ,  F01D17/105 ,  F05D2220/40 ,  F16K31/04 ,  H02K7/116 ,  Y02T10/144

Abstract: A vehicle powertrain includes an engine having an air intake system and an exhaust system. A turbocharger includes a turbine section connected to the exhaust system and a compressor section connected to the air intake system. A wastegate is disposed in the exhaust system and movable between an open and a closed position by an actuator system. The actuator system includes a gear mechanism for moving the waste gate from a closed to an open position and including a pair of noncircular gears.