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A fuel cell system includes a fuel cell stack, an enclosure housing the fuel cell stack and a blower. The blower is located inside the enclosure and is adapted to draw air from inside the enclosure to produce an air flow through the fuel cell stack and establish a negative pressure inside the enclos

A fuel cell system includes a fuel cell stack, an enclosure housing the fuel cell stack and a blower. The blower is located inside the enclosure and is adapted to draw air from inside the enclosure to produce an air flow through the fuel cell stack and establish a negative pressure inside the enclosure with respect to a region outside of the enclosure.

대표청구항 ▼

1. A fuel cell system comprising:a fuel cell stack;an enclosure housing the fuel cell stack; anda blower adapted to draw air from an interior of the enclosure to produce an air flow through the fuel cell stack and establish a negative pressure inside the enclosure with respect to a region outside of

1. A fuel cell system comprising:a fuel cell stack;an enclosure housing the fuel cell stack; anda blower adapted to draw air from an interior of the enclosure to produce an air flow through the fuel cell stack and establish a negative pressure inside the enclosure with respect to a region outside of the enclosure. 2. The fuel cell system of claim 1, wherein the enclosure includes an opening establishing communication between the inside of the enclosure and the region outside of the enclosure, the fuel cell system further comprising a filter disposed in the opening. 3. The fuel cell system of claim 2, wherein a sealed air connection is not formed between an air intake of the blower and the filter. 4. The fuel cell system of claim 2, wherein the filter comprises a HEPA filter. 5. The fuel cell system of claim 2, further comprising:a damper adapted to regulate the air flow into the enclosure. 6. The fuel cell system of claim 5, wherein the damper has a body, the damper body having at least one hole through it to allow air flow through the damper body. 7. The fuel cell system of claim 5, wherein the damper restricts the air flow into the enclosure in response to the level of the air flow into the enclosure. 8. The fuel cell system of claim 5, further comprising:a conduit sealed to the filter to receive air through the filter and including an opening, wherein the damper comprises a flap connected to regulate the communication of air through the opening. 9. The fuel cell system of claim 5, wherein the damper blocks air communication into the enclosure for a first range of air flows and permits air communication into the enclosure for a second higher range of air flows. 10. The fuel cell system of claim 5, further comprising:a conduit sealed to receive air through the filter and including an opening, wherein the damper comprises a louver connected to regulate the communication of air through the opening. 11. The fuel cell system of claim 10, wherein the louver comprises:an elastomer material including incisions to form flaps of the louver. 12. The fuel cell system of claim 1, wherein the blower is located inside the enclosure.