| 摘要 |
Provided are a fluid transfer device having higher efficiency than conventional devices and a fuel cell comprising the fluid transfer device. The fluid transfer device according to the present invention comprises a loop-like elastic body 1, at least two piezoelectric elements 3, 3 arranged on the elastic body 1 along a loop direction, and at least one flow path 6 formed along a flat plate part 11 of the elastic body 1. Voltages having phases different from each other are applied to both the piezoelectric elements 3, 3 to generate in the elastic body 1 a flexural wave advancing in the direction of the loop, and this transfers fluid in the flow path 6. The fuel cell according to the present invention comprises an MEA placed in the loop-like elastic body, and a liquid flow path and a gas flow path are formed along the MEA.
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