Patent ID: 7767326

Claim:
A water controller system constructed such that water generated from a cathode of a direct methanol fuel cell system and carbon dioxide and an unreacted methanol solution generated from an anode of the direct methanol fuel cell system are introduced into the water controller system, the carbon dioxide is discharged out of the water controller system, and the methanol solution is circulated to the corresponding electrode so as to reuse the methanol solution, wherein the water controller system comprises: a seal-type case having a predetermined amount of water contained therein; a hollow-structure floating member having a methanol solution partially contained therein; a gas exhaust port mounted at the upper part of the water controller system for discharging the carbon dioxide; a gas/solution inlet port mounted at the lower part of the water controller system for allowing the water, the carbon dioxide, and the unreacted methanol solution to be introduced into the water controller system from the cathode and the anode therethrough; and an outlet port mounted at the lower part of the water controller system for supplying the methanol solution to the anode, and wherein a flexible inlet pipe, which extends from the inlet port, and a flexible outlet pipe, which extends from the outlet port, are connected to the lower end of the floating member, which floats in the seal-type case, and a flexible exhaust pipe, which extends from the exhaust port, is connected to the upper end of the floating member.