公开(公告)号：US11067131B2

公开(公告)日：2021-07-20

申请号：US16002338

申请日：2018-06-07

Applicant: BORGWARNER INC.

Inventor： Craig Andrew Colont ,  Timothy Mark House

IPC: F16C35/04 ,  F01D25/16 ,  F16C19/16

Abstract: A turbocharger includes a turbine housing defining a turbine housing interior, a turbine wheel disposed in the turbine housing interior, a compressor housing defining a compressor housing interior, a compressor wheel disposed in the compressor housing interior, and a shaft coupled to the compressor wheel and the turbine wheel. The turbocharger also includes a bearing housing assembly including a bearing housing defining a bearing housing interior, and an anti-rotation assembly. The anti-rotation assembly includes a bearing assembly disposed in the bearing housing interior, an anti-rotation spacer disposed in the bearing housing interior and about the shaft, and a retaining ring disposed about the shaft and coupled to the anti-rotation spacer to axially retain the anti-rotation spacer in the bearing housing interior. The anti-rotation spacer has an engagement member engageable with the retaining ring and configured to limit rotation of the retaining ring relative to the anti-rotation spacer.

公开(公告)号：US10465522B1

公开(公告)日：2019-11-05

申请号：US16168684

申请日：2018-10-23

Applicant: BorgWarner Inc.

Inventor： Matthew Carson Colley ,  Craig Andrew Colont ,  Dominic William DePaoli ,  Sean Hastings

IPC: F01D5/16 ,  F02B37/00 ,  F02B39/00 ,  F02C6/12

Abstract: High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced using a turbine wheel with (blade stiffness/backwall stiffness×100) between 41 and 44.