A fuel cell system includes a windshield washer container 1 storing windshield washer fluid, a permeable membrane unit 2 provided inside the windshield washer container 1, and a fuel cell 11. The permeable membrane unit 2 has the capability of extracting methanol from the windshield washer fluid. Th
A fuel cell system includes a windshield washer container 1 storing windshield washer fluid, a permeable membrane unit 2 provided inside the windshield washer container 1, and a fuel cell 11. The permeable membrane unit 2 has the capability of extracting methanol from the windshield washer fluid. The extracted methanol is directly used as the fuel for the fuel cell 11. The windshield washer container 1 has the size comparable with or less than that of a conventional windshield washer container.
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What is claimed is: 1. A fuel cell system comprising: a fuel cell; a windshield washer container for storing windshield washer fluid; and a permeable membrane incorporated in a permeable membrane unit disposed in the windshield washer container, wherein the windshield washer fluid contains methanol
What is claimed is: 1. A fuel cell system comprising: a fuel cell; a windshield washer container for storing windshield washer fluid; and a permeable membrane incorporated in a permeable membrane unit disposed in the windshield washer container, wherein the windshield washer fluid contains methanol as liquid fuel used for the fuel cell, the fuel cell is a direct methanol fuel cell and directly uses the liquid fuel to generate electric power, only the methanol is permeable through the permeable membrane or the methanol is permeable together with water, so that the permeable membrane can extract the methanol from the windshield washer fluid, and the permeable membrane unit has an inside space connected via a pipe to a methanol tank provided outside the windshield washer container, and the methanol extracted through the permeable membrane unit is supplied into the fuel cell via the methanol tank. 2. The fuel cell system in accordance with claim 1, wherein the methanol tank has a volume smaller than that of the windshield washer container. 3. The fuel cell system in accordance with claim 1, wherein a circulating pump is provided in a passage of the pipe to forcibly draw and convey the methanol into the methanol tank when the methanol is extracted through the permeable membrane unit. 4. The fuel cell system in accordance with claim 1, wherein a controller is provided to control a circulating pump to adjust a concentration of the methanol stored in the methanol tank, so that the methanol having a predetermined concentration is conveyed from the methanol tank into the fuel cell. 5. The fuel cell system in accordance with claim 1, wherein the permeable membrane is selected from the group consisting of a porous zeolite membrane, a porous silica membrane, and a porous organic membrane. 6. The fuel cell system in accordance with claim 1, wherein the permeable membrane unit is disposed horizontally in a vicinity of a bottom of the windshield washer container. 7. The fuel cell system in accordance with claim 1, wherein a width of the permeable membrane unit is smaller than a width of the windshield washer container. 8. A fuel cell system comprising: a fuel cell; a windshield washer container for storing windshield washer fluid; and a permeable membrane provided on a side surface of the windshield washer container, and on an outer side surface of the windshield washer container, a diffusion layer, the fuel cell, and an air filter are successively disposed, wherein the windshield washer fluid contains methanol as liquid fuel used for the fuel cell, the fuel cell is a direct methanol fuel cell and directly uses the liquid fuel to generate electric power, and only the methanol is permeable through the permeable membrane or the methanol is permeable together with water, so that the permeable membrane can extract the methanol from the windshield washer fluid. 9. The fuel cell system in accordance with claim 8, wherein the permeable membrane is selected from the group consisting of a porous zeolite membrane, a porous silica membrane, and a porous organic membrane. 10. A fuel cell system comprising: a fuel cell; a windshield washer container for storing windshield washer fluid; and a permeable membrane, wherein the windshield washer fluid contains methanol as liquid fuel used for the fuel cell, the fuel cell is a direct methanol fuel cell and directly uses the liquid fuel to generate electric power, only the methanol is permeable through the permeable membrane or the methanol is permeable together with water, so that the permeable membrane can extract the methanol from the windshield washer fluid, the windshield washer container has a partition to divide the inside space into a methanol container and a surfactant container, and the permeable membrane is provided on a side surface of the methanol container, and a diffusion layer, the fuel cell, and an air filter are successively disposed on an outer side surface of the methanol container. 11. The fuel cell system in accordance with claim 10, wherein the permeable membrane is selected from the group consisting of a porous zeolite membrane, a porous silica membrane, and a porous organic membrane.
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