Patent application number | Description | Published |
20110086281 | DEVICE FOR HUMIDIFYING AND HEATING A COMBUSTIBLE GAS TO BE REFORMED FOR A FUEL CELL UNIT - Device for humidifying and heating of the combustible gas being reformed for a fuel cell system, with a housing, traversed on a stipulated flow path by the combustible gas being humidified and heated, which has an inlet situated in an upper area and a more deeply positioned outlet for the combustible gas, and with a heat exchanger, which is arranged within housing and can be traversed from the bottom up in countercurrent to the combustible gas being humidified and heated by a heat transfer agent supplying the required heat, and with a device to supply water prescribed for humidified of the combustible gas. It is proposed according to the invention that the device for supplying the water prescribed for humidified include a space arranged in the lower area of housing, accommodating the water prescribed for humidified, in which the water is in thermal contact with the lower area of the heat exchanger for heating, and a steam flow path leading upward from the space for transport of water evaporated in the space to the upper area of housing, and that the stipulated flow path for the combustible gas being humidified and heated in the upper area of housing is connected to steam flow path and leads downward to outlet for the humidified and heated combustible gas separately from flow path in thermal contact with heat exchanger. | 04-14-2011 |
20110171544 | FUEL CELL ASSEMBLY WITH IMPROVED GAS RECIRCULATION - There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the recirculation means comprises at least one collection line situated on one long side of the fuel cell stack for collecting the exhaust gases to be recirculated, said line opening into an inlet of a delivery unit which is situated on the end face of the fuel cell stack and which has an outlet that communicates with the cathode gas supply means. | 07-14-2011 |
20110171551 | FUEL CELL ASSEMBLY WITH A MODULAR CONSTRUCTION - There is disclosed a fuel cell assembly comprising: at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the assembly consists of modular sub-assemblies that are independent of one another and that communicate with one another via standardised interfaces. A first sub-assembly comprises the fuel cell stack, the combustible gas supply means and the anode gas withdrawal means, a second sub-assembly comprises the cathode gas supply means together with a cathode gas distributor, a start-up heater and a heat exchanger, a third sub-assembly comprises a cathode exhaust gas collector, a cathode exhaust gas line, a gas mixer for mixing fresh air, the cathode exhaust gas and the anode exhaust gases, a catalytic burner and a collection line of the recirculation means, and a fourth sub-assembly comprises a delivery unit of the recirculation means. | 07-14-2011 |
Patent application number | Description | Published |
20080270054 | Method and System for Digital Triggering of Signals on the Basis of Two Triggering Events Separated by a Time Difference - An approach is provided for digital triggering a recording of one or several signals sampled at individual sampling instants on a digital oscilloscope. The triggering is carried out when the interval between two recurrent triggering events is less or greater than a time threshold value. | 10-30-2008 |
20080297139 | Method and System for Digital Triggering for an Oscilloscope - An approach is provided for digital triggering a recording of one or more digitized signals on a digital oscilloscope by means of carrying out a level comparison for determining a triggering instant in each case between two successive sample values of a reference signal and a threshold values. According to the approach, at least one additional sample value of the reference signal is determined between two sequential samples of the reference signals by means of interpolation. | 12-04-2008 |
20090201183 | DEVICE FOR THE PARALLEL-SERIAL CONVERSION OF SEVERAL SIGNAL PARAMETERS EACH DETECTED BY A DETECTOR - A device for parallel-serial conversion of several evaluation parameters determined respectively by a detector from detected signal values. The device includes a primary buffer memory for the synchronized buffering of each determined evaluation parameter, a synchronization unit for the generation of a synchronization signal for the synchronized buffering and a unit for the serial readout of the evaluation parameters stored in a synchronized manner in the primary buffer memory. A synchronization signal generated by the synchronization unit is derived from a release signal which provides the highest data rate of all the release signals associated respectively with the determined evaluation parameters. | 08-13-2009 |
20100045260 | METHOD AND DEVICE FOR DIGITAL TRIGGERING OF A MEASUREMENT SIGNAL HAVING A SUPERIMPOSED NOISE SIGNAL - A method for digital triggering of a digital recording of a digitized measurement signal having a superimposed noise signal. The method includes generating from the digitized measurement signal a digital triggering signal for the digital triggering of the digital recording of the measurement signal, and performing band-limitation of the noise signal superimposed on the digitized measurement signal via a low-pass filtering before the digital triggering signal is generated. The bandwidth of the low-pass filtering is adjusted dependent upon edge steepness of the measurement signal, in order to reduce variance σ | 02-25-2010 |
20120119726 | MEASURING MACHINE AND MEASURING METHOD FOR MEASURING DIFFERENTIAL SIGNALS - A measuring device for the measurement of differential signals including a real-time portion, which contains two probes, a signal adder and a triggering device. The probes each record a partial signal of a differential signal. The signal adder adds the partial signals to form a differential signal. The triggering device implements a triggering on the basis of the differential signal. | 05-17-2012 |
20150112642 | Measuring device and a method for improved imaging of the spectral characteristics - A measuring device includes a signal-processing unit for the registration of a first signal in the time domain and a histogram-generating unit for the indirect generation of a histogram in the frequency domain from the first signal. The histogram-generating unit provides a frequency grid-point variation unit. | 04-23-2015 |
Patent application number | Description | Published |
20090054588 | Fluoride-modified additive for cementitious products, process for its preparation and use thereof - A fluoromodified admixture containing isocyanate and urethane and/or urea groups is described. Surprisingly, it has been found that the fluoromodified admixture according to the invention is outstandingly suitable even at a very low dosage for the permanent hydrophobic and/or oleophobic and/or dirt-repellent in-bulk finishing of products based on inorganic or hydraulic or mineral binders, without the fundamental property profile (e.g. compressive and flexural tensile strengths) of these products being substantially influenced. Moreover, it was not to be foreseen that in the case of the products treated with the fluoromodified admixtures according to the invention (e.g. hardened building material compositions) a markedly lower water absorption (avoidance of frost damage and corrosion) and a suppression of bleeding on the surfaces (avoidance of visual impairment) are to be observed. Furthermore, it could not be expected that in spite of the high fluorine modification an adequate self-dispersibility is afforded. | 02-26-2009 |
20090240004 | FUNCTIONALIZED POLYURETHANE RESIN, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF - Disclosed is a functionalized polyurethane resin containing a binder component, a hardener component and, optionally, a formulation component. The binder component consists essentially of urethane dispersions with defined structural components which, in turn, consist of special reaction products. Such polyurethane resins are used for the production of fluorine-modified polyurethane coatings and generally in construction or industrial applications for the permanent oil-, water- and dirt-resistant coating of mineral and non-mineral surfaces on the basis of, for example, hydraulically setting components. | 09-24-2009 |