公开(公告)号：US20190360358A1

公开(公告)日：2019-11-28

申请号：US15988529

申请日：2018-05-24

Applicant: GM Global Technology Operations LLC

Inventor： Calvin K. Koch ,  Marc L. Friedrich ,  Anil Yadav ,  John A. Schultz

IPC: F01D25/24 ,  F02B37/00 ,  F01N3/10

Abstract: A turbocharger for an internal combustion engine having a close coupled catalyst assembly includes a turbine housing having a toroidal-shaped low pressure exhaust gas chamber having a plurality of vanes disposed proximate the outer circumferential wall of the low pressure exhaust gas chamber. The vanes are arranged to disrupt the rotational flow of the exhaust gases as they exit the turbine housing to provide a more even flow though the catalyst element of the close coupled catalyst assembly.

公开(公告)号：US20220251970A1

公开(公告)日：2022-08-11

申请号：US17172409

申请日：2021-02-10

Applicant: GM Global Technology Operations LLC

Inventor： John A. Schultz ,  Louis P. Begin

IPC: F01D25/00 ,  F01D25/18 ,  F01D25/16 ,  F01D11/00

Abstract: A turbocharger for an internal combustion engine includes a bearing housing defining a bearing bore, a bearing system within the bore having first and second bearings, a turbine shaft having first and second ends, the turbine shaft supported by the bearing system for rotation about an axis within the bore, a compressor wheel fixed to the turbine shaft proximate to the second end, a turbine wheel fixed to the turbine shaft proximate to the first end, a turbine rotor hub fixed to the turbine shaft and including at least one annular seal ring groove, an annular oil slinger groove, and a plurality of annular lands formed therein, and an anti-coking coating applied to annular lands immediately adjacent to the at least one seal ring groove.

公开(公告)号：US10738655B2

公开(公告)日：2020-08-11

申请号：US15988529

申请日：2018-05-24

Applicant: GM Global Technology Operations LLC

Inventor： Calvin K. Koch ,  Marc L. Friedrich ,  Anil Yadav ,  John A. Schultz

IPC: F01D25/24 ,  F01N3/10 ,  F02B37/00

Abstract: A turbocharger for an internal combustion engine having a close coupled catalyst assembly includes a turbine housing having a toroidal-shaped low pressure exhaust gas chamber having a plurality of vanes disposed proximate the outer circumferential wall of the low pressure exhaust gas chamber. The vanes are arranged to disrupt the rotational flow of the exhaust gases as they exit the turbine housing to provide a more even flow though the catalyst element of the close coupled catalyst assembly.