Abstract: The invention is directed to a method and an arrangement for controlling a charger (2000, 1000) which make possible a reduction of the load on the on-board electrical system especially during run-up of the charger (2000, 1000). A drive signal is formed which drives the charger (2000, 10000 1000). In dependence upon a first operating state of the engine (1005) which directly precedes an increase of the driver command torque, the drive signal is so formed that the charger (2000, 1000) increases its rpm already during this first operating state.

Abstract: The fuel cell apparatus includes a fuel cell (3) for converting chemical energy into electrical energy by burning a hydrogen-enriched liquid (7), a fuel-converting unit (22) for converting hydrocarbon-containing substances (11,12) to the hydrogen-enriched fluid (7), a first tank (1) for storing a first hydrocarbon-containing mixture (11) and optionally an internal combustion engine (4) which burns the hydrocarbon-containing substance. The production of the hydrogen-enriched fluid (7) is improved, especially in the cold starting operation stage, when the fuel cell apparatus includes a device for supplying a second hydrocarbon-containing mixture (12) at least to the fuel-converting unit (22) in certain operating stages.

Abstract: The invention is directed to a method and an arrangement (10) for controlling an electrically operated charger (1), which essentially prevent a sudden drop in voltage with the run-up of the electric charger. A drive signal (AS) is formed, which drives the electric charger (1). The rate of change of speed for an increase of the rpm of the electric charger (1) is pregiven in dependence upon the instantaneous supply voltage (UV).

Abstract: The invention is directed to a method and an arrangement for controlling a charger (2000, 1000) which make possible a reduction of the load on the on-board electrical system especially during run-up of the charger (2000, 1000). A drive signal is formed which drives the charger (2000, 10000. In dependence upon a first operating state of the engine (1005) which directly precedes an increase of the driver command torque, the drive signal is so formed that the charger (2000, 1000) increases its rpm already during this first operating state.

Abstract: Atomizing nozzle for introducing a gas/liquid mixture into a chemical reformer to produce hydrogen, having at least one gas supply line (21) for a gas stream (20), at least one liquid supply line (25, 27) and at least one outlet (19) for the atomized gas/liquid mixture as well as a first chamber (24) into which the liquid supply line (25, 27) empties, with the chamber (24) having a chamber wall (16) that forms a lip (18) at the outlet end, on both sides of which a separate gas flow (20, 22) is supplied.

Abstract: The invention relates to an apparatus for furnishing a reaction mixture for a reforming catalyst of a fuel cell assembly, having a) an air infeed with means for regulating an air flow rate; b) a fuel infeed with means for regulating a fuel flow rate; c) a water vapor generator with means for regulating a water vapor flow rate; d) a liquid water infeed with means for regulating a liquid water flow rate; and e) a control unit, which communicates with the liquid water infeed, the water vapor generator, the fuel infeed, and the air infeed; and via the control unit, controlling variables for the fuel infeed, the liquid water infeed, the water vapor generator and the air infeed which are furnished as a function of a power demand to the fuel cell and as a function of an operating phase of the apparatus.

Abstract: An apparatus for delivering at least two liquid media (M1, M2) to consumers of a fuel cell system, with a feed pump (11), is proposed which is less complicated than known apparatuses. This is achieved by providing that at least one pressure transmission unit (20) between the at least two media (M1, M2) is provided with at least one pressure transmission element (2c), which has at least two pressure faces (D1, D2) for pressure imposition that communicate with the liquid media (M1, M2).

Abstract: The invention relates to an atomizing device for a gas/fluid mixture, in particular for introduction into a chemical reformer for generating hydrogen, which contains at least one gas supply line for supplying a gas flow (11, 11a, 21) and at least one fluid supply line (16, 18) for supplying a fluid flow (17, 19). The fluid supply line (16, 18) feeds at an outlet point (16a, 18a) into a venturi tube (12) that is situated in the gas supply line.

Abstract: A fuel preparation unit and a method for furnishing a fuel that contains hydrogen to a fuel energy converter (12) for chemical conversion and energy conversion of the fuel includes a fuel pressure reservoir (2) for storing the fuel subjected to pressure, with which the efficiency of furnishing the fuel is improved. At least one separate pressure energy recycling unit (4, 8, 9) for converting and recycling pressure energy of the fuel is utilized.

Abstract: The invention relates to a metering unit for metering liquid and/or gaseous educts by means of a feed pump for a fuel cell system. The metering unit includes at least one lead line (16) for delivering an educt flow, at least one control piston (12), and a differential pressure valve (14) for regulating the educt flow; the differential pressure valve (14) has a regulatable throttling cross section (39), which is variable automatically, as a function of a flow pressure dictated by the control piston (12), in order to regulate the educt flow. The lead line (16) leads to the control piston (12), and between the control piston (12) and the differential pressure valve (14) a first and a second connecting line (28, 29) are provided.

Abstract: The invention relates to atomizing apparatus for a gas/fluid mixture, in particular for introduction into a chemical reformer for generating hydrogen, which contains at least one gas supply line (10, 10′) for supplying a gas flow (11, 11′) and at least one fluid supply line for supplying a fluid flow. The gas supply line (10, 10′) has at least one first branch point (14, 14′) at which a partial flow (21, 21′) of the gas flow (11, 11′) can be split off into a side line (20, 20′), which is embodied as a bypass. The fluid flow feeds into the side line (20, 20′) at an outlet point (26) of the fluid supply line. The gas supply line (10, 10′) has at least one second branch point (16) at which the side line (20) with the partial flow (21, 21′) containing the fluid flow can be reintroduced.

Abstract: The invention relates to an apparatus for furnishing a reaction mixture for a reforming catalyst of a fuel cell assembly, having