FUEL CELL SYSTEM AND METHOD FOR REGULATING PRESSURE IN FUEL CELL SYSTEMS

摘要

The invention relates to a fuel cell system comprising a polyelectrolyte membrane fuel cell (6) and to a method with which the pressure inside the fuel cell can be regulated by altering the quantity of fuel introduced into the fuel cell. The pressure inside the cell is detected by pressure sensors (7, 8), is evaluated by a control unit (4), and is regulated by control commands sent to an inlet value (2) or to an outlet valve (11).