发明授权
US4892436A Shaft composite structure between ceramic turbine rotor and metal member
失效
陶瓷涡轮转子与金属构件之间的轴复合结构
- 专利标题： Shaft composite structure between ceramic turbine rotor and metal member
- 专利标题（中）： 陶瓷涡轮转子与金属构件之间的轴复合结构
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申请号： US172378申请日： 1988-03-24
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公开(公告)号： US4892436A公开(公告)日： 1990-01-09
- 发明人: Takeyuki Mizuno , Seiichi Asami
- 申请人： Takeyuki Mizuno , Seiichi Asami
- 申请人地址： JPX Nagoya
- 专利权人： NGK Insulators, Ltd.
- 当前专利权人： NGK Insulators, Ltd.
- 当前专利权人地址： JPX Nagoya
- 优先权： JPX62-45875[U] 19870330
- 主分类号： F01D5/04
- IPC分类号： F01D5/04 ; C04B37/02 ; F01D5/02 ; F16B1/00 ; F16B4/00 ; F16D1/064
摘要：
In a shaft composite structure wherein a ceramic shaft integrally formed with a ceramic turbine rotor is fixed to a metal sleeve integrally formed with a metal rotary shaft of a compressor impeller, a connection edge is located at a position corresponding to a recess for seal ring, and a thickness of tip portion of the metal sleeve is made thin to reduce a stiffness.Therefore, a stress concentration at the connection edge can be eliminated effectively and thus a reliable shaft composite structure can be obtained.
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