Invention Grant
- Patent Title: Titanium aluminide wheel and steel shaft connection thereto
- Patent Title (中): 钛酸铝轮与钢轴连接
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Application No.: US10900645Application Date: 2004-07-28
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Publication No.: US07287960B2Publication Date: 2007-10-30
- Inventor: David M. Decker
- Applicant: David M. Decker
- Applicant Address: US MI Auburn Hills
- Assignee: B{dot over (o)}rgWarner, Inc.
- Current Assignee: B{dot over (o)}rgWarner, Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Akerman Senterfitt
- Agent Stephan A. Pendorf
- Main IPC: F01D5/04
- IPC: F01D5/04
Abstract:
Titanium aluminide (TiAl) rotor shaft assembly (10) of a type used in a turbocharger has a TiAl rotor (20) with an axially protruded portion (40) that is fixedly joined to a recessed portion (50) of a metal shaft (30) by the synergistic combination of an interference fit, such as a heat shrinkage fit, further supported by a brazed joint (60) in which a thin layer of a brazing material (110) is interposed between the surface of the protruded portion (120) and the recessed surface (130). Optionally, one or both of the jointed surfaces have braze channels (90) to facilitate braze flow within the joint. Methods for producing the rotor shaft assembly (10) and a turbocharger having the rotor shaft assembly (10) are provided.
Public/Granted literature
- US20060021221A1 Titanium aluminide wheel and steel shaft connection thereto Public/Granted day:2006-02-02
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