| Patent application number | Description | Published |
|---|
| 20110053013 | Method for Operating a Fuel Cell System with a Recirculation Blower Arranged in a Fuel Circuit Thereof - In a method for operating a fuel cell system having recirculation blower arranged in a fuel cell circuit, fuel discharged from the anode exhaust is fed back to the inlet side of the fuel cell system via the recirculation blower. The direction of flow in the fuel return line is reversed in at least a portion of the return line, in an alternating manner. | 03-03-2011 |
| 20110189555 | Apparatus for Supplying a Fuel Cell in a Fuel Cell System with Fuel Gas - An apparatus for supplying a fuel cell in a fuel cell system with fuel gas is provided. The fuel cell system includes a mixing region, where unused fuel gas mixes with fresh fuel gas, a water precipitator, a device for the at least indirect heating of the supplied fresh fuel gas and at least one receptor for a sensor for sensing state variables and/or chemical magnitudes of the fuel gas flowing to the anode. The mixing region, water precipitator, device for the at least indirect heating and at least one sensor are combined in an integrated component part. | 08-04-2011 |
| 20120037657 | Method for Discontinuously Emptying a Container - A method serves for discontinuously emptying a container in which liquid collects. The container is emptied via a valve or other such emptying device. The container must never be completely emptied and never overflow. A sensor is arranged in the container to detect a first state in which liquid is present in a predetermined region and a second state in which no liquid is present in the predetermined region. The valve or other emptying device is activated as soon as the sensor detects the first state, and is stopped as soon as the sensor detects the second state. | 02-16-2012 |
| 20120058407 | Cooling Devices for a Fuel Cell System - A cooling device for a fuel cell system includes at least one cooling circuit, through which a fuel cell can be cooled. The fuel cell system also includes a component with at least an electric drive area and a gas delivery area. A gas can be delivered to the fuel cell through the gas delivery area and the component is actively cooled. The cooling of the component takes place together with the cooling of the fuel cell in a cooling circuit. | 03-08-2012 |
| 20130004866 | Fuel Cell System Comprising at Least One Fuel Cell - A fuel cell system includes at least one fuel cell and a circulation system for anode exhaust gases of the fuel cell around an anode region. The fuel cell system also includes a drain line for feeding liquid and water from the region of the circulation system into a process air flow to a cathode region of the fuel cell. The drain line opens into a line element for the process air flow which runs from a lower position into an upper position arranged higher when used properly in the direction of gravity. The flow of the process air runs from the lower position to the upper position of the line element. | 01-03-2013 |
| 20130209902 | Fuel Cell System - A fuel cell system includes a fuel cell having a cathode chamber and an anode chamber. Exhaust gas from the anode chamber is conducted back to the inlet of the anode chamber in an anode circuit. A water separator is provided in the anode circuit, which is connected to a supply line to the cathode chamber by a drain line. A further water separator is arranged in the supply line upstream of the cathode chamber in the flow direction. The drain line flows into the supply line, upstream of the other water separator in the flow direction, or into the other water separator. | 08-15-2013 |
| 20140205925 | Fuel Cell System - A fuel cell system includes at least one fuel cell, water-conducting parts and components in the region of the supply and discharge of starting materials and products to and from the fuel cell, and at least one cooling circuit containing liquid cooling medium for cooling the fuel cell. The water-conducting parts and components are in thermal contact with the cooling medium, at least during individual operating phases of the fuel cell. | 07-24-2014 |
| 20140308595 | Fuel Cell System - A fuel cell system includes at least one fuel cell, line elements for supplying and discharging starting materials and/or products to/from the fuel cell, and at least one condensation unit. The condensation unit is situated in at least one of the line elements and, at least in individual operating phases of the fuel cell, the condensation unit is at a lower temperature level than the areas surrounding it and the fuel cell. | 10-16-2014 |
| 20140315110 | Method for Operating a Fuel Cell - A method for operating a fuel cell system involves operating the fuel cell with recirculation of anode exhaust gas below a predefined maximum load limit of the fuel cell and operating the fuel cell without recirculation of the anode exhaust gas between the load limit and the full load of the fuel cell. | 10-23-2014 |
| 20150086886 | Fuel Cell Stack Arrangement with at least one Multi-Functional End Plate - A fuel cell stack arrangement includes a fuel cells arranged between a first and a second end plate. At least one of the end plates is designed as a channel end plate with at least one channel. The channel has a stack opening, which is opened in the direction of the stack, and a second opening. The stack opening and the second opening are connected to each other via a channel section and are arranged at a distance to each other in a top view looking down on the channel end plate. | 03-26-2015 |
