公开(公告)号：US11808177B1

公开(公告)日：2023-11-07

申请号：US17873347

申请日：2022-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ian Alexander May ,  Chijou Wang ,  Carnell E. Williams

IPC: F01D9/04 ,  F01D11/00 ,  F01D17/14 ,  F02C6/12

CPC classification number: F01D9/045 ,  F01D11/005 ,  F01D17/145 ,  F02C6/12 ,  F05D2220/40 ,  F05D2240/128 ,  F05D2260/60

Abstract: A turbocharger including a compressor section having a compressor housing with an air inlet and a compressor air discharge and a compressor wheel in the compressor housing. A turbine section having a turbine housing with an exhaust gas inlet and a turbine exhaust gas outlet and a turbine wheel in the turbine housing, the turbine wheel being drivingly connected to the compressor wheel, the exhaust gas inlet being configured to be connected to an engine exhaust passage and the turbine exhaust gas outlet being configured to be connected to an exhaust system. The compressor housing includes a diffuser with a recess that receives the compressor wheel wherein the recess has a sidewall with an upper edge and the compressor wheel has a base plate with an upper surface that is below the upper edge of the sidewall of the recess in the diffuser.