发明授权
- 专利标题： Method of starting and operating a shape memory alloy heat engine
- 专利标题（中）： 启动和运行形状记忆合金热机的方法
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申请号： US13340897申请日： 2011-12-30
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公开(公告)号： US08800283B2公开(公告)日： 2014-08-12
- 发明人: Alan L. Browne , Nancy L. Johnson , Nilesh D. Mankame , Paul W. Alexander , John Andrew Shaw , Christopher Burton Churchill , Andrew C. Keefe , Guillermo A. Herrera , Jeffrey W Brown , Richard J. Skurkis
- 申请人： Alan L. Browne , Nancy L. Johnson , Nilesh D. Mankame , Paul W. Alexander , John Andrew Shaw , Christopher Burton Churchill , Andrew C. Keefe , Guillermo A. Herrera , Jeffrey W Brown , Richard J. Skurkis
- 申请人地址： US MI Detroit US CA Tustin US MI Ann Arbor
- 专利权人： GM Global Technology Operations LLC,Dynalloy Inc.,The Regents of the University of Michigan
- 当前专利权人： GM Global Technology Operations LLC,Dynalloy Inc.,The Regents of the University of Michigan
- 当前专利权人地址： US MI Detroit US CA Tustin US MI Ann Arbor
- 代理机构： Quinn Law Group. PLLC
- 主分类号： F01B29/10
- IPC分类号： F01B29/10 ; F02G1/04
摘要：
A shape memory alloy (SMA) heat engine includes a first rotatable pulley, a second rotatable pulley, and an SMA material disposed about the first and second rotatable pulleys and between a hot region and a cold region. A method of starting and operating the SMA heat engine includes detecting a thermal energy gradient between the hot region and the cold region using a controller, decoupling an electrical generator from one of the first and second rotatable pulleys, monitoring a speed of the SMA material about the first and second rotatable pulleys, and re-engaging the driven component if the monitored speed of the SMA material exceeds a threshold. The SMA material may selectively change crystallographic phase between martensite and austenite and between the hot region and the cold region to convert the thermal gradient into mechanical energy.