A fuel cell system includes a stack having an electricity generator for receiving fuel and air to generate electrical energy, a fuel supply unit for supplying the fuel to the stack, a housing in which the stack is mounted, a fan unit for supplying external air to the interior of the housing for cool
A fuel cell system includes a stack having an electricity generator for receiving fuel and air to generate electrical energy, a fuel supply unit for supplying the fuel to the stack, a housing in which the stack is mounted, a fan unit for supplying external air to the interior of the housing for cooling the electricity generator, and a region wherein air heated while cooling the electricity generator and air discharged from the stack and containing moisture are mixed. The air that is mixed in the region is discharged from the region.
대표청구항▼
What is claimed is: 1. A fuel cell system, comprising: a stack having at least one electricity generator for receiving fuel and air to generate electrical energy; a fuel supply unit for supplying the fuel to the stack; a housing in which the stack is mounted, air discharged from the stack being exh
What is claimed is: 1. A fuel cell system, comprising: a stack having at least one electricity generator for receiving fuel and air to generate electrical energy; a fuel supply unit for supplying the fuel to the stack; a housing in which the stack is mounted, air discharged from the stack being exhausted out of the stack through a discharge pipe; a fan unit for supplying external air to an interior of the housing for cooling said at least one electricity generator; and a region being supplied with the air discharged from the stack through a return line that is coupled to the discharge pipe, wherein air heated while cooling said at least one electricity generator and the air discharged from the stack and containing moisture are mixed in the region; wherein the air that is mixed in the region is discharged from the region. 2. The fuel cell system of claim 1, wherein the housing includes a body in which the stack is mounted and to which the fan unit is connected, and the region includes a mixing unit extending integrally from the body, the mixing unit having an exhaust hole through which the mixed air in the region is discharged to an exterior of the housing. 3. The fuel cell system of claim 2, wherein the fan unit includes a fan connected to the body through a fan line for supplying external air to an interior of the body. 4. The fuel cell system of claim 2, wherein the fan unit includes a fan mounted to one side of the body. 5. The fuel cell system of claim 2, wherein the mixing unit is funnel-shaped and has an inner diameter that gradually decreases while proceeding toward the exhaust hole, and the mixing unit includes an intake hole through which the air discharged from the stack enters the mixing unit. 6. The fuel cell system of claim 1, wherein the region includes a mixing tank provided separately from the housing and connected to the housing and the stack. 7. The fuel cell system of claim 6, further comprising a first return line connected to the housing and the mixing tank, and a second return line connected to the stack and the mixing tank. 8. The fuel cell system of claim 7, wherein the housing includes an intake hole formed in one side of the housing, and external air supplied by the fan unit is supplied to the interior of the housing through the intake hole, and the housing includes an exhaust hole formed in another side of the housing, and the heated air is discharged to an exterior of the housing through the exhaust hole. 9. The fuel cell system of claim 8, wherein the mixing tank includes a first inflow hole connected to the exhaust hole through the first return line, and a second inflow hole connected to the stack through the second return line. 10. The fuel cell system of claim 1, wherein the region includes a mixing pipe provided separately from the housing and connected to the housing and the stack. 11. The fuel cell system of claim 10, further comprising a first return line connected to the housing and the mixing pipe, and a second return line connected to the stack and the mixing pipe. 12. The fuel cell system of claim 10, wherein the housing includes an intake hole formed in one side of the housing, and external air supplied by the fan unit is supplied to the interior of the housing through the intake hole, and the housing includes an exhaust hole formed in another side of the housing, and the heated air is discharged to an exterior of the housing through the exhaust hole. 13. The fuel cell system of claim 12, wherein the mixing pipe includes a first inflow hole connected to the exhaust hole through the first return line, and a second inflow hole connected to the stack through the second return line. 14. The fuel cell system of claim 10, wherein the mixing pipe is a 3-way pipe. 15. The fuel cell system of claim 1, wherein said at least one electricity generator comprises a plurality of electricity generators mounted in the housing, and wherein the external air flows through cooling paths formed between the plurality of electricity generators. 16. The fuel cell system of claim 15, wherein each of the electricity generators includes a membrane-electrode assembly, and a pair of separators interposing the membrane-electrode assembly and closely contacting opposite sides of the membrane-electrode assembly; and wherein the cooling paths are formed on one side of each of the separators at areas corresponding to the cooling paths formed on an adjacent one of the separators. 17. The fuel cell system of claim 16, wherein the cooling paths are formed by the combination of channels formed on contacting surfaces of each of the separators. 18. The fuel cell system of claim 1, further comprising a reformer mounted between the stack and the fuel supply unit for reforming fuel supplied from the fuel supply unit to thereby generate hydrogen gas. 19. The fuel cell system of claim 18, wherein the fuel cell system comprises a polymer electrolyte membrane fuel cell system. 20. The fuel cell system of claim 1, wherein the fuel cell system comprises a direct methanol fuel cell system.
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이 특허에 인용된 특허 (3)
Lance Joseph R. (North Huntingdon Township ; West Moreland County PA), Air motor drive for fuel cell power plant air circulator.
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