Patent ID: 6635371
Filing Date: 2003-10-21
Classification: H01M,Y02E

Abstract:
A fuel cell system, comprising:a fuel tank for storing fuel; an evaporator for evaporating said fuel to generate fuel gas; a reforming reactor for generating reformed gas containing hydrogen from said fuel gas; a combustor for burning one of said fuel in said fuel tank and said reformed gas to supply heat to said evaporator; a fuel cell for generating electricity by use of said hydrogen contained in said reformed gas generated in said reforming reactor; a boiling point temperature estimation portion for estimating a boiling point temperature of said fuel in said evaporator based on an operation pressure of said evaporator; a vapor temperature measuring portion for measuring a vapor temperature of fuel gas in said evaporator; and a flow rate control portion for increasing a flow rate of one of fuel and reformed gas burnt in said combustor when a value obtained by subtracting said boiling point temperature from said vapor temperature becomes below a predetermined value.