초록 ▼

A fuel cell power generating apparatus includes a stack of a plurality of fuel cell units each having a cathode and an anode disposed on opposite sides of an electrolyte membrane. A fuel gas supply system supplies fuel gas to the anode, an air supply system supplies air to the cathode and a water su

A fuel cell power generating apparatus includes a stack of a plurality of fuel cell units each having a cathode and an anode disposed on opposite sides of an electrolyte membrane. A fuel gas supply system supplies fuel gas to the anode, an air supply system supplies air to the cathode and a water supply system supplies liquid water to the cathode. A control unit ensures that, when the apparatus starts up, the cathode is first supplied with air, followed by supply of the liquid water. In a preferred embodiment, the water supply system intermittently sprays the liquid water onto the cathode when the temperature of the fuel cell stack monitored by a temperature sensor falls below a predetermined temperature.

대표청구항 ▼

[ What is claimed is:] [1.]1. A fuel cell system comprising:one or more fuel cells each having an anode, a cathode and an electrolyte membrane interposed between said anode and said cathode;first gas supplying means for supplying a first gas including fuel gas to said anode;second gas supplying mean

[ What is claimed is:] [1.]1. A fuel cell system comprising:one or more fuel cells each having an anode, a cathode and an electrolyte membrane interposed between said anode and said cathode;first gas supplying means for supplying a first gas including fuel gas to said anode;second gas supplying means for supplying a second gas including oxygen to said cathode;liquid water supplying means for supplying water in liquid state onto a surface of said cathode;sensor means for detecting a water supply capacity of said liquid water supplying means at least in start-up of said first gas supplying means; andcontrol means for discontinuing or interrupting operation of said first gas supplying means responsive to detection that the water supply capacity of said liquid water supplying means has decreased to below a predetermined minimum level.