Abstract: The invention relates to a check valve (1) having a solenoid assembly (2), which comprises a solenoid actuator (12) having a solenoid (6) and an armature (7), which is pre-tensioned by a spring element (9) with a pre-tensioning force acting in a closing direction, wherein the armature (7) is movable along an axis of movement (10) in an opening direction to open the check valve (1) via a magnetic flux acting against the pre-tensioning force of the spring element (9), to open a fluidic connection between a fluid inlet (4) and a fluid outlet (5), which is blocked without the magnetic force, by a magnetic force pulling on the armature (7). In order to functionally improve the check valve (1), the solenoid assembly (2) is designed in such a way that a selectively asymmetric magnetic force distribution results with respect to the axis of movement (10) of the armature (7).

Abstract: Internal combustion engine for gaseous fuels having a combustion chamber (2) in which gaseous fuel is burned. The gaseous fuel is kept at an operating pressure in a gas tank (7) and fed to the combustion chamber (2) via a supply line (6). The combustion chamber (2) is connected to a fresh air line (10) through which ambient air is fed to the combustion chamber (2). The exhaust gas from the combustion chamber (2) is fed to an exhaust gas catalytic converter (14) via an exhaust pipe (13). A pressure relief line (16, 16?) with a switchable release valve (17, 17) branches off from the supply line (6), via which gaseous fuel can be discharged from the supply line (6).

Abstract: A method for controlling an electromagnetically controllable gas valve. In order to open a seal seat, a solenoid coil acting on an armature is supplied with current so that a valve member interacting with the seal seat is lifted out of the seal seat by the armature and, in order to close the seal seat, the current supply to the solenoid coil is terminated so that the valve member is returned into the seal seat by the spring force of a closing spring, wherein the return of the valve member into the seal seat causes the armature to disengage from the valve member and perform a free stroke. A braking current is applied to the solenoid coil during the closing and, depending on the direction of movement of the armature, the current supply to the solenoid coil is interrupted and/or the current level is varied. A control device is also described.

Abstract: Internal combustion engine for gaseous fuels having a combustion chamber (2) in which gaseous fuel is burned. The gaseous fuel is kept at an operating pressure in a gas tank (7) and fed to the combustion chamber (2) via a supply line (6). The combustion chamber (2) is connected to a fresh air line (10) through which ambient air is fed to the combustion chamber (2). The exhaust gas from the combustion chamber (2) is fed to an exhaust gas catalytic converter (14) via an exhaust pipe (13). A pressure relief line (16, 16?) with a switchable release valve (17, 17) branches off from the supply line (6), via which gaseous fuel can be discharged from the supply line (6).

Abstract: A gas metering valve. The gas metering valve includes a housing, in which a gas chamber is formed, which can be filled with gaseous fuel via an inlet opening and from which gaseous fuel can be discharged in a metered manner via an outlet opening. A valve element is longitudinally moveably arranged in the gas chamber, and has a valve seal surface which cooperates with a valve seat for opening and closing the outlet opening. A magnet armature is connected to the valve element. A bellows is connected in a gas-tight manner to the valve element at one end and to the housing at the other end. The gas-tight connection with the housing is formed along a sealing line. The diameter of the sealing line is greater than the diameter of the valve seat.

Abstract: The invention relates to a method (200) for operating a tank device (1) for storing compressed fluids, having a tank (2), a valve device (100), a feed line (29), a flow-regulating element (27) situated in the feed line (29), and a control unit (64). The valve device (100) comprises a magnet apparatus (11), by means of which magnet apparatus (11) the opening and closing process of the valve device (100) can be controlled, the magnet apparatus (11) comprising a solenoid (10). A characteristic map (80) is stored in the control unit (64), in which characteristic map (80) reference pressure differences (70) with associated electrical current strengths for the solenoid (10) are stored, the electrical current strength being selected such that the valve device (100) is still open, an initial electrical current strength being stored in the characteristic map (80). The method is characterised by the following steps: a. applying (60) the initial electrical current strength to the solenoid (10); b.

Abstract: A gas metering valve for an internal combustion engine. The gas metering valve includes a housing in which a gas chamber is formed, which includes an inlet opening and an outlet opening. A movable valve element is situated in the gas chamber, which is movable by an electrical actuator against the force of a return spring and which cooperates with a valve seat for opening and closing the inlet opening. A blocking valve is situated between the valve element and the outlet opening, which opens in the flow direction to the outlet opening and blocks in the opposite flow direction.

Abstract: The invention relates to a valve device (100) for a gaseous medium, in particular hydrogen, comprising a valve housing (6) and a solenoid armature (14) which is arranged in the valve housing and can move along the longitudinal axis (18) and which interacts with a first sealing seat (32) in order to open and close an outlet opening (40). Furthermore, the valve housing (6) is equipped with a second solenoid armature (16) which can be moved along the longitudinal axis (18) and which is at least partly received in a recess (38) of the first solenoid armature (14), and the second solenoid armature (16) interacts with a second sealing seat (34) in order to open and close an outlet opening (20) formed in the first solenoid armature (14).

Abstract: A gas metering valve for an internal combustion engine. The gas metering valve includes a housing in which a gas chamber is formed, which includes an inlet opening and an outlet opening. A movable valve element is situated in the gas chamber, which is movable by an electrical actuator against the force of a return spring and which cooperates with a valve seat for opening and closing the inlet opening. A blocking valve is situated between the valve element and the outlet opening, which opens in the flow direction to the outlet opening and blocks in the opposite flow direction.

Abstract: A diecasting tool system has a machine-related base plate, at least one set of contour-imparting mould components which in an assembled position on the base plate form a casting contour for an associated cast part to be cast, and a plurality of not contour-imparting tool receptacle module components. The base plate, the tool receptacle module components and the contour-imparting mould components are configured for releasably assembling the associated set of contour-imparting mould components and an assigned set of the tool receptacle module components on a fastening side of the base plate for casting the respective cast part. The base plate on the fastening side has a fastening grid of a plurality of fastening points which are disposed so as to be distributed in a regular or irregular pattern across a fastening region.

Abstract: The invention relates to a valve device (100) for a gaseous medium, in particular hydrogen, comprising a valve housing (6) and a solenoid armature (14) which is arranged in the valve housing and can move along the longitudinal axis (18) and which interacts with a first sealing seat (32) in order to open and close an outlet opening (40). Furthermore, the valve housing (6) is equipped with a second solenoid armature (16) which can be moved along the longitudinal axis (18) and which is at least partly received in a recess (38) of the first solenoid armature (14), and the second solenoid armature (16) interacts with a second sealing seat (34) in order to open and close an outlet opening (20) formed in the first solenoid armature (14).

Abstract: The invention relates to a method (200) for operating a tank device (1) for storing compressed fluids, having a tank (2), a valve device (100), a feed line (29), a flow-regulating element (27) situated in the feed line (29), and a control unit (64). The valve device (100) comprises a magnet apparatus (11), by means of which magnet apparatus (11) the opening and closing process of the valve device (100) can be controlled, the magnet apparatus (11) comprising a solenoid (10). A characteristic map (80) is stored in the control unit (64), in which characteristic map (80) reference pressure differences (70) with associated electrical current strengths for the solenoid (10) are stored, the electrical current strength being selected such that the valve device (100) is still open, an initial electrical current strength being stored in the characteristic map (80). The method is characterised by the following steps: a. applying (60) the initial electrical current strength to the solenoid (10); b.

Abstract: A diecasting tool system has a machine-related base plate, at least one set of contour-imparting mould components which in an assembled position on the base plate form a casting contour for an associated cast part to be cast, and a plurality of not contour-imparting tool receptacle module components. The base plate, the tool receptacle module components and the contour-imparting mould components are configured for releasably assembling the associated set of contour-imparting mould components and an assigned set of the tool receptacle module components on a fastening side of the base plate for casting the respective cast part. The base plate on the fastening side has a fastening grid of a plurality of fastening points which are disposed so as to be distributed in a regular or irregular pattern across a fastening region.

Abstract: The invention relates to a method for producing a valve (1) that can be electromagnetically actuated which method comprises an electromagnet (2, 2a, 2b), an armature (3) that can be moved by the electromagnet (2, 2a, 2b), and a valve body (5), having means (4, 4a, 4b, 4c) for converting a movement of the armature (3) into an opening or closing of the valve (1), wherein the electromagnet (2, 2a, 2b) and the armature (3) are inserted into the valve body (5), wherein, before the electromagnet (2, 2a, 2b) is inserted into the valve body (5), a magnetic hysteresis curve (10) of a combination (6) of the electromagnet (2, 2a, 2b) having a test armature (3a) lying against said electromagnet (2, 2a, 2b) is recorded, the slope m1 of a first, substantially linear curve segment (11) of the hysteresis curve (10) is determined in the unsaturated state, and, from the slope m1, the slope m1* of a curve segment (31) of a hysteresis curve (30) of the finally assembled valve (1) having the armature (3) lying continuously agains

Abstract: The invention relates to a method for producing a valve (1) that can be electromagnetically actuated which method comprises an electromagnet (2, 2a, 2b), an armature (3) that can be moved by the electromagnet (2, 2a, 2b), and a valve body (5), having means (4, 4a, 4b, 4c) for converting a movement of the armature (3) into an opening or closing of the valve (1), wherein the electromagnet (2, 2a, 2b) and the armature (3) are inserted into the valve body (5), wherein, before the electromagnet (2, 2a, 2b) is inserted into the valve body (5), a magnetic hysteresis curve (10) of a combination (6) of the electromagnet (2, 2a, 2b) having a test armature (3a) lying against said electromagnet (2, 2a, 2b) is recorded, the slope m1 of a first, substantially linear curve segment (11) of the hysteresis curve (10) is determined in the unsaturated state, and, from the slope m1, the slope m1* of a curve segment (31) of a hysteresis curve (30) of the finally assembled valve (1) having the armature (3) lying continuously agains

Abstract: A method for regulating a common rail injector, the method including acquiring a signal of a sensor, which signal is proportional to a pressure in a valve space of the common rail injector; evaluating a change in the signal over time in order to detect at least one operating event of the common rail injector; and modifying at least one operating variable of the common rail injector as a function of the at least one operating event, the at least one operating variable being selected from an opening duration, a closing duration, an opening point in time, and a closing point in time of a switching valve of the common rail injector, and from an opening duration, an opening point in time, and a closing point in time of a needle valve of the common rail injector.

Abstract: A method for predefining a current through a solenoid coil of a solenoid valve, a closing point in time of the solenoid valve being detected with the aid of a sensor, a sensor value being monitored, and, when a premature closing of the solenoid valve is identified based on the monitored sensor value, the current through the solenoid coil of the solenoid valve is increased.

Abstract: A method is described for operating at least one magnetic switching element, at least one first connection of at least one sensor device being connected to at least one connection of a coil of the magnetic switching element, and the first connection or an additional connection of the sensor device being connected to a reference potential, and a measuring state being established in which at least one connection of the coil is essentially at least temporarily decoupled from the reference potential and/or from a source activating the coil, and at least one signal of at least one sensor of the sensor device being ascertained in the measuring state from at least one electrical potential at at least one connection of the coil.

Abstract: Electromagnetic valve, particularly for controlling a fuel injector or for regulating the pressure of a high-pressure fuel accumulator, comprising a casing (2), an electromagnet (24, 25) formed of a yoke (24) and an electromagnetic coil (25) housed in the latter, and an armature (22) in one or more parts. An abutment disk (28) is provided between the transverse face of the armature (22) turned towards the yoke (24) and the transverse face facing the yoke (24), this abutment disk (28) being made of a magnetized or magnetizable material, particularly of a ferromagnetic material.

Abstract: The invention relates to an actuator (1) comprising a housing (8), a coil (29) and an armature (2) which interacts with a tappet (30) and a spring, the armature plate (3) thereof being arranged to lie opposite an armature counterpiece (16), and said actuator (1) comprising at least one magnetostrictively-active component. According to the invention, an actuator (1) is provided with which large actuating paths can be travelled at high actuating forces. This is achieved by the actuator (1) additionally being designed to act as a solenoid.