Abstract: An injection valve for injecting a liquid includes an electromagnetic actuator and a movable valve needle and a valve closing element that with a valve seating surface forms a sealing seat, and includes a perforated disc situated downstream from the sealing seat, the perforated disc having at least one inlet area and at least one outlet opening. An upper functional plane having the at least one inlet area has a different opening geometry in cross-section than a lower functional plane having the at least one outlet opening. The perforated disc has inlet areas, each provided, as a locally limited cavity, with a rectangular or bathtub-shaped contour, a respective outlet opening going out from each in the direction of flow, the outlet openings, going out from the midpoint of the respective inlet areas, and drawing an imaginary longitudinal axis and transverse axis through these, having an asymmetry as to both axes.

Abstract: A valve for atomizing fluid is specified, in particular an injection or metering valve for fuel injection or exhaust-gas systems of motor vehicles, which valve has a valve seat body (11) with a valve seat (14) which surrounds a valve opening (13), a perforated injection disc (17) which bears against the front side of the valve seat body (12) downstream of the valve opening (13) and has at least one spray hole (18) which is offset radially with respect to the valve opening (13), and an inflow cavity (19) which is present between the valve opening (13) and the at least one spray hole (18).

Abstract: An injection valve for injecting a liquid includes an electromagnetic actuator and a movable valve needle and a valve closing element that with a valve seating surface forms a sealing seat, and includes a perforated disc situated downstream from the sealing seat, the perforated disc having at least one inlet area and at least one outlet opening. An upper functional plane having the at least one inlet area has a different opening geometry in cross-section than a lower functional plane having the at least one outlet opening. The perforated disc has inlet areas, each provided, as a locally limited cavity, with a rectangular or bathtub-shaped contour, a respective outlet opening going out from each in the direction of flow, the outlet openings, going out from the midpoint of the respective inlet areas, and drawing an imaginary longitudinal axis and transverse axis through these, having an asymmetry as to both axes.

Abstract: An atomization system for fuels, particularly for charging a chemical reformer for obtaining hydrogen, includes at least one metering device for metering fuel at at least one metering point into a connecting tube capable of receiving a temperature-adjusted substance stream. The connecting tube features at least one atomization point located downstream of the at least one metering point.

Abstract: A valve for atomizing fluid is specified, in particular an injection or metering valve for fuel injection or exhaust-gas systems of motor vehicles, which valve has a valve seat body (11) with a valve seat (14) which surrounds a valve opening (13), a perforated injection disc (17) which bears against the front side of the valve seat body present between the valve opening (13) and (12) downstream of the valve opening (13) and has at least one spray hole (18) which is offset radially with respect to the valve opening (13), and an inflow cavity (19) which is the at least one spray hole (18).

Abstract: A dosing device for liquid fuels, in particular for input into a chemical reformer in order to recover hydrogen or into a post-combustion device in order to generate heat, includes at least one metering device for metering fuel into a metering conduit and a nozzle body, adjoining the metering conduit, includes at least one spray discharge opening which opens into a metering chamber, including a nozzle body having a perforated spray insert in which at least one spray discharge opening is disposed.

Abstract: An atomizer nozzle (1) for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body (2) containing spray-discharge orifices (3) that discharge into a metering space, and has at least one metering aperture (6). The spray-discharge orifices (3) are situated at elevation levels (4) so as to have a radial directional component with respect to a center line (10) of the nozzle body (2), each elevation step having at least one spray-discharge orifice (3), and the spray-discharge orifices (3) of at least one elevation level (4) being connected to at least one channel (14) of a nozzle-body insert (5) that has at least one flow-through opening (11).

Abstract: An atomization system for fuels, particularly for charging a chemical reformer for obtaining hydrogen, includes a fuel injector, an atomization tube, an air inlet and at least one metering aperture. The atomization tube features at least a first section and a second section having different outer diameters or wall thicknesses.

Abstract: A device and a method are described for controlling an electromagnetic user, especially a magnetic valve for influencing the fuel quantity to be injected into an internal combustion engine. At least one switching time of the user is taken into consideration in the control. The at least one switching time is ascertained starting from a current value.

Abstract: An atomizer nozzle for fuels, particularly for charging a chemical reformer for obtaining hydrogen, features a nozzle body, having spray-discharge orifices discharging into a metering space, and at least one metering aperture, The spray-discharge orifices are situated with a radial directional component with respect to a center axis of the nozzle body at elevation levels, each elevation level having at least one spray-discharge orifice. At least one nozzle body insert, having at least one flow-through opening, is situated in the nozzle body in front of the first elevation step in the direction of fuel flow and/or between the elevation steps.

Abstract: An atomization system for fuels, particularly for charging a chemical reformer for obtaining hydrogen, includes at least one metering device for metering fuel at at least one metering point into a connecting tube capable of receiving a temperature-adjusted substance stream. The connecting tube features at least one atomization point located downstream of the at least one metering point.

Abstract: A dual component injector, especially for internal combustion engines, has a nozzle body, which has a nozzle outlet, and a valve needle for opening and closing the nozzle outlet. A first feed channel is used for supplying a first fluid to the nozzle outlet, and a second feed channel is used for supplying a second fluid to the nozzle outlet. Optionally, a fluid chamber, which is located in the nozzle body, is connected to the nozzle outlet. The second feed channel is connected to the fluid chamber or to the first feed channel via at least two bored holes. The bored holes open out in the fluid chamber or in the first feed channel in such a way that the second fluid produces a swirling flow pattern in the fluid chamber or in the first feed channel.

Abstract: An atomizer nozzle for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body containing spray-discharge orifices that discharge into a metering space, and has at least one metering aperture. The spray-discharge orifices are situated at elevation levels so as to have a radial directional component with respect to a center line of the nozzle body, each elevation step having at least one spray-discharge orifice, and the spray-discharge orifices of at least one elevation level being connected to at least one channel of a nozzle-body insert that has at least one flow-through opening.

Abstract: A dosing device for liquid fuels, in particular for input into a chemical reformer in order to recover hydrogen or into a post-combustion device in order to generate heat, includes at least one metering device for metering fuel into a metering conduit and a nozzle body, adjoining the metering conduit, includes at least one spray discharge opening which opens into a metering chamber, including a nozzle body having a perforated spray insert in which at least one spray discharge opening is disposed.

Abstract: The invention relates to a reforming system for a fuel cell, including an evaporating device for evaporating a raw fuel and for delivering the evaporated raw fuel to a reforming unit, at least one pump for metering the raw fuel that is conducted into the evaporating device, and a control unit. At least one pump is a metering pump, whose rpm is regulated by means of the control unit. Moreover, at least one monitoring device serves to monitor the metering quantity of the raw fuel through the regulated metering pump.

Abstract: A device and a method are described for controlling an electromagnetic user, especially a magnetic valve for influencing the fuel quantity to be injected into an internal combustion engine. At least one switching time of the user is taken into consideration in the control. The at least one switching time is ascertained starting from a current value.

Abstract: A fuel injector, particularly a fuel injector for fuel injection systems in internal combustion engines, has a valve needle, which cooperates with a valve-seat surface to form a sealing seat, and an armature, which engages with the valve needle, the armature being movable along the axis of the valve needle and being damped by a damping element made from an elastomer. In this context, a first intermediate ring is situated between the armature and the damping element. The damping element rests on the flange, which is connected in a force-locking manner to the valve needle. The intermediate ring and/or the flange is furnished with radial and/or axial channels which connect an interior volume located between the valve needle and the damping element to a central cutaway of the fuel injector.

Abstract: A dual component injector, especially for internal combustion engines, has a nozzle body, which has a nozzle outlet, and a valve needle for opening and closing the nozzle outlet. A first feed channel is used for supplying a first fluid to the nozzle outlet, and a second feed channel is used for supplying a second fluid to the nozzle outlet. Optionally, a fluid chamber, which is located in the nozzle body, is connected to the nozzle outlet. The second feed channel is connected to the fluid chamber or to the first feed channel via at least two bored holes. The bored holes open out in the fluid chamber or in the first feed channel in such a way that the second fluid produces a swirling flow pattern in the fluid chamber or in the first feed channel.

Abstract: A fuel injector (1), particularly a fuel injector for fuel injection systems in internal combustion engines, has a valve needle (3), which cooperates with a valve-seat surface (6) to form a sealing seat, and an armature (20), which engages with the valve needle (3), the armature (20) being movable along the axis of the valve needle (3) and being damped by a damping element (32) made from an elastomer. In this context, a first intermediate ring (34) is situated between the armature (20) and the damping element (32). The damping element (32) rests on the flange (31), which is connected in a force-locking manner to the valve needle (3). The intermediate ring (34) and/or the flange (31) is furnished with radial and/or axial channels which connect an interior volume (36) located between the valve needle (3) and the damping element (32) to a central cutaway (42) of the fuel injector (1).

Abstract: When an internal combustion engine is hot, especially in hot starting or during hot idling, outgassing of fuel occurs upstream of the injection port disk and at the injection ports; as a result, because too little fuel is supplied, the running performance is undesirably impaired. The running performance of the engine is therefore intended to be improved by preventing the development of vapor bubbles. By the provision of a transfer element, in the form of a raised body shoulder formed on the valve seat body, that reduces the heat transfer between the valve seat body and the injection port disk, it is accomplished that the injection port disk cools down as a result of the extracted heat of evaporation of the injected fuel, and thus the danger of vapor bubble development at the injection ports or upstream is reduced. The fuel injection valve is especially suitable for fuel injection systems in mixture-compressing internal combustion engines with externally supplied ignition.