Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Hannesen
Ronald Hannesen, Dusseldorf DE
| Patent application number | Description | Published |
|---|---|---|
| 20090066563 | Method and Apparatus for Correcting Weather data, and Computer Program Product - The invention relates to a method, an apparatus and a computer program product for correcting the weather data of radial speed, spectral width and/or differential reflectivity which have been acquired from radar echo data recorded by a ground-based, radar-based remote-sensing appliance ( | 03-12-2009 |
| 20100315432 | METHOD FOR DETERMINING COMPOUND DATA OF WEATHER RADARS IN AN OVERLAPPING REGION OF THE MONITORING REGIONS OF AT LEAST TWO WEATHER RADARS - Method for determining combined data of weather radars ( | 12-16-2010 |
Uwe Hannesen, Bonneval FR
| Patent application number | Description | Published |
|---|---|---|
| 20080233448 | Coolant Reservoir Purge System for Fuel Cell Systems and Vehicles - A fuel cell system that employs a technique for safely removing hydrogen gas that accumulates within a cooling fluid reservoir. The fuel cell system includes a fuel cell stack and a compressor for providing airflow to the cathode side of the fuel cell stack. The system also includes an air filter box having an air filter that is in fluid communication with an air pocket in the reservoir. The air intake to the compressor flows through the air filter box, and sucks the gas from the reservoir, which is then sent to the cathode side of the fuel cell stack to be converted to water by the electro-chemical reaction therein. | 09-25-2008 |
Uwe Hannesen, Schupfen CH
| Patent application number | Description | Published |
|---|---|---|
| 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 |
Uwe Hannesen, Schuepfen CH
| Patent application number | Description | Published |
|---|---|---|
| 20110294028 | FUEL CELL SYSTEM COMPRISING A HEAT EXCHANGER - A fuel cell system including: a fuel cell stack including plural fuel cells sandwiched between two end plates; a fuel supply system supplying a stream of fuel gas to the fuel cell stack; an oxidizer supply system supplying a stream of oxidizer gas to the fuel cell stack; a closed loop coolant circulation system driving a cooling liquid through the fuel cell stack so that the cooling liquid enters the fuel cell stack, absorbs heat from the fuel cells, and exits the fuel cell stack. The coolant circulation system includes a circulation pump driving the cooling liquid, a heat exchanger removing heat from the cooling liquid and for at least partially transferring the heat to the stream of fuel gas and/or the stream of oxidizer gas. The heat exchanger includes a tube made from a heat-conducting material and inserted into a bore in one of the end plates, the tube and the bore defining at least a first fluid channel inside the tube and a second fluid channel in a space existing between the tube and the sides of the bore in the end plate, one of the first and second fluid channels being for the cooling liquid, and the other fluid channel being for the fuel or the oxidizer gas. | 12-01-2011 |