Patent ID: 7824815
Filing Date: 2010-11-02
Classification: H01M,Y02E

Abstract:
1. A fuel cell system, comprising: a fuel cell; an intake pipe for admitting an introduction of oxidizing gas; an oxidizing gas moving source that is provided downstream of the intake pipe for moving the oxidizing gas to a fuel cell; an exhaust pipe for discharging exhaust gas which contains vapor generated at an oxygen electrode side of the fuel cell through an operation of the fuel cell; a circulating pipe that connects the intake pipe and the exhaust pipe; a circulating valve that is provided in the circulating pipe for adjusting a flow rate of the exhaust gas supplied from the exhaust pipe to the intake pipe, a pressure regulating valve that is provided in the exhaust pipe for regulating a pressure at a position at which the circulating pipe and the exhaust pipe are joined; and a control unit for controlling the pressure regulating valve to regulate the pressure at the position at which the circulating pipe and the exhaust pipe are joined into a predetermined pressure value higher than a pressure within the intake pipe.