Patent ID: 7008710

Claim:
A fuel cell system comprising: a fuel cell stack; an air supply system supplying an air flow to the fuel cell stack, comprising a blower for driving the air to a cooling air inlet of the fuel cell stack for cooling the fuel cell stack and to an air humidifier for humidifying the air supplied to the fuel cell stack; a hydrogen supply system supplying hydrogen to the fuel cell stack, comprising a hydrogen storage in which hydrogen is stored and from which a hydrogen flow is supplied to the fuel cell stack, and a pressure regulating device for regulating the hydrogen flow, a hydrogen recirculator for receiving an excessive hydrogen from the fuel cell stack and forcing the hydrogen back into the fuel cell stack in order to induce a hydrogen flow circulation inside the fuel cell stack; and a control circuit electrically controlling the flow and pressure regulating device for regulating the hydrogen flow toward the fuel cell stack and electrically controls the blower to regulate the air flows to the fuel cell stack and the air humidifier.