Invention Grant
- Patent Title: Method of reducing turbine wheel high cycle fatigue in sector-divided dual volute turbochargers
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Application No.: US16551954Application Date: 2019-08-27
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Publication No.: US11624283B2Publication Date: 2023-04-11
- Inventor: Matthew Carson Colley , Craig Andrew Colont , Dominic William DePaoli , Sean Hastings
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Patent Central LLC
- Agent Eric L. Doyle; Stephan A. Pendorf
- Main IPC: F01D5/10
- IPC: F01D5/10 ; 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, and energy extraction is optimized, using a turbine wheel with (blade stiffness/backwall stiffness×100) between 41 and 44.
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