Abstract: Disclosed is a flow heater with a housing having an inlet and an outlet. A flow passage for liquid that is to be heated runs from the inlet to the outlet. A heating plate is arranged as wall of a heated section of the flow passage. A bypass passage is provided in parallel to the heated section of the flow passage in order to guide any gas bubbles contained in the liquid from the fluid inlet to the fluid outlet without passing through the heated section of the flow passage.

Abstract: Disclosed is a heater comprising a metal substrate, a dielectric layer arranged the substrate, and resistive tracks arranged on the dielectric layer, wherein the resistive tracks comprise at least 60% iron, and at least 10% chromium. Also disclosed is a method for manufacturing such a heater.

Abstract: A heating device for heating fluids, such as water or a liquid coolant, for application in electric or hybrid vehicles, where the absence of an internal combustion engine or its shorter time of use requires using heating devices for heating either the passenger compartment or other parts of the vehicle that require it. The heating device is provided with a configuration which limits the temperature to the temperature at which heat exchange occurs between the heat generation source and the liquid to be heated, such that the liquid does not generate precipitates, prolonging the service life of the device.

Abstract: A method is described for the assembly of a magnetic core for a transformer, with the following steps: Cutting sheet metal blanks from transformer sheet, stacking the sheet metal blanks to form magnetic core segments, placing a permanent magnet at one of the magnetic core segments so that the latter is magnetized by the permanent magnet, formation of the magnetic core by placing the remaining magnetic core segments against the permanent magnet, or against a magnetic core segment already magnetized by the permanent magnet. A magnetic core is also disclosed.

Abstract: An ignition coil is described for an internal combustion engine, with a housing, a transformer, which is arranged in an interior space of the housing, and potting compound, with which the interior space of the housing is cast. In accordance with this disclosure provision is made for the transformer to be covered by a mat, which is embedded in the potting compound.

Abstract: A primary coil former for an ignition coil has a winding carrier surface configured for a primary coil wound thereon. Two primary winding stops limit the winding carrier surface at first and second axial ends of the carrier surface, respectively. Two holders are formed at the first axial end, each configured for holding one end of a winding wire. Two deflection domes are formed at the second axial end, one of the domes configured for guiding a winding wire back to the winding carrier surface for a clockwise winding and the other dome configured for guiding a winding wire back to the winding carrier surface for a counterclockwise winding. A groove in the winding carrier surface receives a winding wire which leads from one of the ends of the winding carrier surface up to a gap between the two deflection domes at the opposite end of the winding carrier surface.

Abstract: Described is a liquid heater having a housing, in which a flow channel runs from an inlet to an outlet, a heating resistor arranged within the housing for heating liquid flowing through the flow channel, control electronics which are arranged in an interior space of the housing, the interior space being sealed off from the flow channel, and a plug connector attached to the housing. Provided according to this disclosure, the plug connector has a vent duct which is closed by a membrane and which leads to the interior space sealed against the ingress of liquid, in which interior space the control electronics are arranged.

Abstract: Disclosed is a flow heater with a housing having an inlet and an outlet. A flow passage for liquid that is to be heated runs from the inlet to the outlet. A heating plate is arranged as wall of a heated section of the flow passage. A bypass passage is provided in parallel to the heated section of the flow passage in order to guide any gas bubbles contained in the liquid from the fluid inlet to the fluid outlet without passing through the heated section of the flow passage.

Abstract: A flow heater is described that has a housing in which a flow channel extends from a liquid inlet to a liquid outlet. The heater has a metal plate along which the flow channel runs, and the metal plate carries a heating resistor. Provision is made for the metal plate to carry a corrugated sheet that protrudes into the flow channel and has openings through which the liquid that is to be heated can pass.

Abstract: An inventive ignition coil has a transformer that includes a primary coil, a secondary coil and a core formed from stacked metal sheets. A plastic frame holds the sheets. A housing surrounds an interior in which the transformer is arranged and the interior is sealed with an electrically insulating casting compound. The housing comprises an interior wall bounding bounds a compartment in which a part of the core is arranged, the part of the core being outside the primary coil and the secondary coil.

Abstract: Described is a liquid heater having a housing, in which a flow channel runs from an inlet to an outlet, a heating resistor arranged within the housing for heating liquid flowing through the flow channel, control electronics which are arranged in an interior space of the housing, the interior space being sealed off from the flow channel, and a plug connector attached to the housing. Provided according to this disclosure, the plug connector has a vent duct which is closed by a membrane and which leads to the interior space sealed against the ingress of liquid, in which interior space the control electronics are arranged.

Abstract: The present invention relates to a heating device for heating fluids, such as water or a liquid coolant, for example, which can be applied in electric or hybrid vehicles, for example, where the absence of an internal combustion engine or its shorter time of use requires using heating devices for heating either the passenger compartment or other parts of the vehicle that require it. The present invention is characterized by a configuration which limits the temperature to the temperature at which heat exchange occurs between the heat generation source and the liquid to be heated, such that the liquid does not generate precipitates, prolonging the service life of the device.

Abstract: An ignition coil is described with a housing having a tubular housing part for connecting to a spark plug, and a pin-shaped interference suppression resistor arranged in the tubular housing part. According to this disclosure, it is provided that the housing surrounds an interior which has a funnel-shaped section which tapers toward the tubular housing part. In addition, a method is described for producing such an ignition coil.

Abstract: An inventive ignition coil has a transformer that includes a primary coil, a secondary coil and a core formed from stacked metal sheets. A plastic frame holds the sheets. A housing surrounds an interior in which the transformer is arranged and the interior is sealed with an electrically insulating casting compound. The housing comprises an interior wall bounding bounds a compartment in which a part of the core is arranged, the part of the core being outside the primary coil and the secondary coil.

Abstract: A primary coil former for an ignition coil has a winding carrier surface configured for a primary coil wound thereon. Two primary winding stops limit the winding carrier surface at first and second axial ends of the carrier surface, respectively. Two holders are formed at the first axial end, each configured for holding one end of a winding wire. Two deflection domes are formed at the second axial end, one of the domes configured for guiding a winding wire back to the winding carrier surface for a clockwise winding and the other dome configured for guiding a winding wire back to the winding carrier surface for a counterclockwise winding. A groove in the winding carrier surface receives a winding wire which leads from one of the ends of the winding carrier surface up to a gap between the two deflection domes at the opposite end of the winding carrier surface.

Abstract: Described is an ignition coil comprising a housing, in which a transformer is arranged, and a plug connector, wherein the plug connector has a high voltage contact, which is connected to the secondary side of the transformer by means of a wire, which resiliently presses against an electrical contact surface. The contact surface is concavely shaped.

Abstract: A connector plug is described for connecting an ignition coil to a spark plug, comprising an electrical conductor, which has a first end for contacting the ignition coil and a second end for contacting the spark plug, and a protective tube, which surrounds the electrical conductor. In accordance with this disclosure it is proposed that the protective tube has a predetermined bending point with a reduced bending stiffness.

Abstract: A method is described for the assembly of a magnetic core for a transformer, with the following steps: Cutting sheet metal blanks from transformer sheet, stacking the sheet metal blanks to form magnetic core segments, placing a permanent magnet at one of the magnetic core segments so that the latter is magnetized by the permanent magnet, formation of the magnetic core by placing the remaining magnetic core segments against the permanent magnet, or against a magnetic core segment already magnetized by the permanent magnet. A magnetic core is also disclosed.

Abstract: An ignition coil is described for an internal combustion engine, with a housing, a transformer, which is arranged in an interior space of the housing, and potting compound, with which the interior space of the housing is cast. In accordance with this disclosure provision is made for the transformer to be covered by a mat, which is embedded in the potting compound.

Abstract: A connector plug is described for connecting an ignition coil to a spark plug, comprising an electrical conductor, which has a first end for contacting the ignition coil and a second end for contacting the spark plug, and a protective tube, which surrounds the electrical conductor. In accordance with this disclosure it is proposed that the protective tube has a predetermined bending point with a reduced bending stiffness.