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

fYear

2003

fDate

19-22 Oct. 2003

Firstpage

293

Lastpage

297

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Micromechatronics and Human Science, 2003. MHS 2003. Proceedings of 2003 International Symposium on

Print_ISBN

0-7803-8165-3

Type

conf

DOI

10.1109/MHS.2003.1249951

Filename

1249951