Patent application number | Description | Published |
20100209821 | FUEL CELL STRUCTURE AND SEPARATOR PLATE FOR USE THEREIN - The present invention concerns a separator plate for use in a fuel cell stack with a substantially circular or oval main surface wherein a fluid flow path is defined by a plurality of channels extending substantially in parallel to each other and leading a fluid from a fluid supply port to a fluid discharge port. Adjacent channels merge such as to decrease the number of parallel channels from the supply port to the discharge port, thereby decreasing a cross sectional area of the flow path. The plurality of parallel channels comprises the following sections:
| 08-19-2010 |
20110059375 | METHOD FOR LIMITING THE OUTPUT VOLTAGE OF A PEM FUEL CELL SYSTEM - The method for limiting the output voltage of a PEM fuel cell system operating in, or near, zero load conditions, in such a way as to minimize degradation of performance over time, comprises:
| 03-10-2011 |
20110111318 | METHOD OF OPERATING A FUEL CELL/BATTERY PASSIVE HYBRID POWER SUPPLY - The method of operating a passive hybrid power supply in, or near, zero connected load conditions comprises the steps of:
| 05-12-2011 |
20110250516 | METHOD OF SHUT-DOWN AND STARTING OF A FUEL CELL - A method of operating a PEM fuel cell including an anode feed circuit and a cathode feed circuit for feeding of an anode side with a reactant gas and for feeding a cathode side with a cathode gas. A shut-down mode for shutting down an electricity generating operation of the fuel system includes decreasing the supply of reactant gas and cathode gas in response of a shut-down signal, monitoring an output voltage of at least one cell of a fuel cell stack, monitoring the reactant gas pressure and the cathode gas pressure, electrically shunting of the at least one fuel cell in response of the output voltage reaching a predefined voltage level, at least reducing the pressure of the anode side to a predefined pressure level by means of at least one pump, and filling and/or flushing of at least the anode side with an inert gas. | 10-13-2011 |
20140212777 | FUEL CELL SYSTEM COMPRISING AN EJECTOR FOR RECIRCULATING OFF-GAS FROM A STACK - The fuel cell system includes:
| 07-31-2014 |