The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between
The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body, and is opened by inserting a fuel-supplying member.
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What is claimed is: 1. A method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell, wherein the fuel reservoir is detachably connected with a fuel cell main body and is equipped with a fuel-storing vessel for storing a liquid fuel and a fuel discharge part; the fuel discharge
What is claimed is: 1. A method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell, wherein the fuel reservoir is detachably connected with a fuel cell main body and is equipped with a fuel-storing vessel for storing a liquid fuel and a fuel discharge part; the fuel discharge part is equipped with a valve for sealing communication between the inside and the outside of the fuel-storing vessel; the inside of the fuel-storing vessel is communicated with the fuel cell main body by inserting a liquid fuel-supplying member into the valve, thereby forming a communication part that communicates the inside of the fuel-storing vessel with the fuel cell main body and through which the liquid fuel in the inside of the fuel-storing vessel is supplied to the fuel cell main body; the valve comprises an elastic material and has an elliptic form in a cross section; the communication part is a slit which is provided in a minor axis direction of the ellipse, wherein the valve is pressed into a circular vessel having a shorter diameter or an elliptic vessel having a shorter major axis than the major axis of its ellipse to compress its own major axis direction. 2. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 1, wherein the vessel into which the valve is pressed is a valve-receiving part provided in the fuel-storing vessel. 3. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 1, wherein the vessel into which the valve is pressed is a valve adaptor, and a composite in which the valve is installed in the valve adaptor is loaded in the fuel-storing vessel. 4. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 1, wherein the valve comprises a material having low gas permeability toward the liquid fuel and comprises a material having a compression set of 20% or less prescribed in JIS K 6262-1997. 5. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 4, wherein the material of the valve is selected from the group consisting of butyl rubber, halogenated butyl rubber and acrylonitrile-butadiene rubber. 6. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 1, wherein a convex projection is formed in the valve toward the inside of the fuel-storing vessel. 7. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 1, wherein the liquid fuel is at least one selected from the group consisting of a methanol solution, an ethanol solution, dimethyl ether, formic acid, hydrazine, an ammonia solution, ethylene glycol, a saccharide aqueous solution and a sodium boron hydride aqueous solution. 8. A method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell, wherein the fuel reservoir is detachably connected with a fuel cell main body and is equipped with a fuel-storing vessel for storing a liquid fuel and a fuel discharge part; the fuel discharge part is equipped with a valve for sealing communication between the inside and the outside of the fuel-storing vessel; the inside of the fuel-storing vessel is communicated with the fuel cell main body by inserting a liquid fuel-supplying member into the valve, thereby forming a communication part that communicates the inside of the fuel-storing vessel with the fuel cell main body and through which the liquid fuel in the inside of the fuel-storing vessel is supplied to the fuel cell main body; the valve comprises an elastic material and has a circular form in a cross section; the communication part is a slit which is provided in a diameter direction of the circle, wherein the valve is pressed into an elliptic vessel having a shorter minor axis than a diameter of the valve so that a line formed by the slit is consistent with a major axis direction of the ellipse. 9. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 8, wherein the vessel into which the valve is pressed is a valve-receiving part provided in the fuel-storing vessel. 10. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 8, wherein the vessel into which the valve is pressed is a valve adaptor, and a composite in which the valve is installed in the valve adaptor is loaded in the fuel-storing vessel. 11. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 8, wherein the valve comprises a material having low gas permeability toward the liquid fuel and comprises a material having a compression set of 20% or less prescribed in JIS K 6262-1997. 12. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 11, wherein the material of the valve is selected from the group consisting of butyl rubber, halogenated butyl rubber and acrylonitrile-butadiene rubber. 13. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 8, wherein a convex projection is formed in the valve toward the inside of the fuel-storing vessel. 14. The method of preventing leak of a liquid fuel from a fuel reservoir for a fuel cell as described in claim 8, wherein the liquid fuel is at least one selected from the group consisting of a methanol solution, an ethanol solution, dimethyl ether, formic acid, hydrazine, an ammonia solution, ethylene glycol, a saccharide aqueous solution and a sodium boron hydride aqueous solution.
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