Patent ID: 6740432
Filing Date: 2004-05-25
Classification: G05D,H01M,Y02E

Abstract:
A fuel cell system provided with a fuel reformer for producing reformed gas containing hydrogen gas from a mixture liquid of liquid fuel and water, for supplying said reformed gas to an anode electrode of a fuel cell, said fuel cell including said anode electrode, a cathode electrode provided opposed to said anode electrode, and an electrolyte interposed therebetween, said fuel cell system comprising:a mixing tank for mixing and storing said liquid fuel and said water and supplying said mixture liquid to said fuel reformer; a liquid fuel supply unit for supplying said liquid fuel to said mixing tank; a water supply unit for recovering water discharged from at least said fuel cell and supplying said water to said mixing tank; a first detecting means for detecting an amount of said mixture liquid in said mixing tank; a second detecting means for detecting an amount of said liquid fuel stored in said liquid fuel supply unit; and a water supply stop means for stopping supply of said water from said water supply unit to said mixing tank based on amounts of said mixture liquid and said liquid fuel detected by said first and second detecting means for maintaining a constant mixing ratio of said liquid fuel and said water in said mixing tank.