Patent ID: 7052790
Filing Date: 2006-05-30
Classification: H01M,Y02B,Y02E

Abstract:
1. A fuel cell system, comprising: a fuel cell that generates electric power using a fuel gas and an oxidizer gas; a cooling water tank that stores cooling water for cooling said fuel cell; at least one of fuel-side condenser means of cooling an exhaust fuel gas discharged from said fuel cell to condense content water vapor contained in the exhaust fuel gas or oxidizer-side condenser means of cooling an exhaust oxidizer gas discharged from said fuel cell to condense content water vapor contained in the exhaust oxidizer gas; a condensed water tank that is opened to atmosphere and stores said condensed water provided by at least one of said fuel-side condenser means or said oxidizer-side condenser means; and a water discharge channel of discharging an excessive cooling water discharged from said cooling water tank to said condensed water tank, wherein said cooling water tank is opened to the air via said water discharge channel and said condensed water tank.