Title :
Design and fabrication of a resonant micro reciprocating engine for power generation
Author :
Hashimoto, K. ; Ogawa, J. ; Toriyama, T. ; Sugiyama, S.
Author_Institution :
Fac. of Sci. & Eng., Ritsumeikan Univ., Kyoto, Japan
Abstract :
Structure and performance of a silicon based micro reciprocating engine have been designed. The Otto cycle with hydrogen fuel has been adopted for the working cycle. The micro reciprocating engine is composed of opposite-pistons supported by an elastic spring. Resonant mode of the elastic spring is excited due to combustion pressure to increase the generated electric power. Theoretical electric power was found to be ∼40 mW under the conditions that the compression ratio is 5, the maximum combustion temperature is 850K and the first resonant frequency of the elastic spring is 610 Hz. The micro engine can be used as a portable micro power generator with high energy density.
Keywords :
combustion; elasticity; electric generators; etching; internal combustion engines; micromechanical devices; photolithography; 40 mW; 610 Hz; 850 K; Otto cycle; combustion pressure; elastic spring resonant mode; high energy density; hydrogen fuel; maximum combustion temperature; micropower generator; opposite-pistons; power generation; resonant frequency; resonant microreciprocating engine; silicon based microreciprocating engine; theoretical electric power; Combustion; Engines; Fabrication; Fuels; Hydrogen; Power generation; Resonance; Silicon; Springs; Temperature;
Conference_Titel :
Micromechatronics and Human Science, 2003. MHS 2003. Proceedings of 2003 International Symposium on
Print_ISBN :
0-7803-8165-3
DOI :
10.1109/MHS.2003.1249951
