发明名称 |
Piezoelectric micro-transducers, methods of use and manufacturing methods for same |
摘要 |
Various micro-transducers incorporating piezoelectric materials for converting energy in one form to useful energy in another form are disclosed. In one embodiment, a piezoelectric micro-transducer can be operated either as a micro-heat engine, converting thermal energy into electrical energy, or as a micro-heat pump, consuming electrical energy to transfer thermal energy from a low-temperature heat source to a high-temperature heat sink. In another embodiment, a piezoelectric micro-transducer is used to convert the kinetic energy of an oscillating or vibrating body on which the micro-transducer is placed into useful electrical energy. A piezoelectric micro-transducer also is used to extract work from a pressurized stream of fluid. Also disclosed are a micro-internal combustion engine and a micro-heat engine based on the Rankine cycle in which a single fluid serves as a working fluid and a fuel. |
申请公布号 |
US2005225213(A1) |
申请公布日期 |
2005.10.13 |
申请号 |
US20050147031 |
申请日期 |
2005.06.07 |
申请人 |
WASHINGTON STATE UNIVERSITY RESEARCH FOUNDATION |
发明人 |
RICHARDS ROBERT F.;BAHR DAVID F.;RICHARDS CECILIA |
分类号 |
B81B3/00;F02B75/34;F03B17/00;F04B43/04;H01L41/09;H01L41/113;H02N2/00;(IPC1-7):H01L41/113 |
主分类号 |
B81B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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