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AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsYasuyuki Muramatsu, Hideo Kohda
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A fuel cell system includes a fuel tank which stores a methanol fuel, an aqueous solution tank which stores a methanol aqueous solution having a concentration less than that of the methanol fuel, a fuel pump which supplies the methanol fuel stored in the fuel tank to the aqueous solution tank, a fuel cell stack which is supplied with the methanol aqueous solution from the aqueous solution tank for generating electric energy through electrochemical reactions, a water tank which stores water to be supplied to the aqueous solution tank, a water pump for supplying water stored in the water tank to the aqueous solution tank, a concentration sensor which detects the concentration of the methanol aqueous solution supplied to the fuel cell stack, a fluid surface detection sensor which detects a fluid surface height of the methanol aqueous solution in the aqueous solution tank, and a controller which controls a supply operation of the fuel pump and the water pump based on an output from the concentration sensor, and supply operation of the fuel pump and the water pump based on an output from the fluid surface detection sensor.
1-9. (canceled)
A fuel cell system comprising:
A fuel cell system comprising:
A fuel cell system comprising:
Dependencies are inferred from the claim text.