Fuel cell system with a device for supplying fuel

A fuel cell system comprising:

• a fuel cell having an anode part and a cathode part;
• a device for producing/ preparing cell fuel, said device having an outlet and an inlet;
• a cell fuel supply line connecting said producing/preparing device outlet with said anode part;
• an oxidizing agent supply line connected to the cathode part of said fuel cell;
• an intermediate storage tank;
• a motor-fuel tank for holding motor fuel;
• a water supply line;
• and
• a duel pump unit having a first inlet section and a second inlet section, said first inlet section communicating with an outlet of said motor fuel tank, said second inlet section communicating with said water supply line, said duel pump unit discharging a motor-fuel/water mixture to said intermediate storage tank, the motor-fuel/water mixture in said intermediate storage tank being supplied from said intermediate storage tank to the inlet of said producing/preparing device for reforming of said motor-fuel/water mixture in said producing/preparing device into a hydrogen-rich cell fuel gas, the hydrogen-rich cell gas outletting from the producing/preparing device into said cell fuel supply line.