Abstract: The invention relates to a continuous-flow heater having a housing, which comprises an inlet opening and an outlet opening, and a heater housing, which comprises at least one tubular chamber, in which at least one heating element is arranged. In accordance with this disclosure a plurality of ribs are arranged on a front side and a rear side of the heater housing, said ribs defining, between themselves, flow channel portions for liquid to be heated.

Abstract: This disclosure relates to a method for producing a heating rod for a vehicle heating apparatus, said method comprising the following steps: arranging at least one PTC element and at least one contact element in a tube, which is formed from sheet metal and is open along a longitudinal side; welding portions of the sheet metal that bear against one another by means of a weld seam running in the longitudinal direction of the tube. This disclosure also relates to such a heating rod.

Abstract: The invention relates to a electric heating device for heating fluids, comprising at least one heating resistor, a screw, which defines a helical flow channel, and a tube housing, which surrounds the screw. In accordance with this disclosure, the screw has a core in which the at least one heating resistor is arranged.

Abstract: The invention relates to a continuous-flow heater having a housing, which comprises an inlet opening and an outlet opening, and a heater housing, which comprises at least one tubular chamber, in which at least one heating element is arranged. In accordance with this disclosure a plurality of ribs are arranged on a front side and a rear side of the heater housing, said ribs defining, between themselves, flow channel portions for liquid to be heated.

Abstract: The invention relates to an HF ignition device for igniting a combustible gas mixture in an internal combustion engine, comprising a center electrode (2), an insulating body (3) through which center electrode (2) extends, a housing (4) that carries, on one end thereof, a metallic housing body (5) that encloses at least one section of insulating body (3), and comprising an external thread (5a) to be screwed into an internal combustion engine, and a circuit for the HF excitation of the center electrode (2). According to the invention, the section of the insulating body (3) that encloses the housing body (5) comprises an electrically conductive coating (6).

Abstract: An igniter for igniting a fuel-air-mixture in a combustion chamber, in particular in a combustion engine with one or several combustion chambers, by generating a high frequency corona discharge, said ignitiger comprising an assembly comprising an ignition electrode, an outer conductor surrounding the ignition electrode, which has a front end and a rear end, and an electrical insulator arranged between the ignition electrode and the outer conductor, wherein the ignition electrode is part of an electrical high-frequency resonant circuit, protrudes over the front end of the outer conductor, and is connected to an alternate current source or alternate voltage source which feeds the HF-resonant circuit, and delivers a high frequency alternate current or a high frequency alternate voltage, respectively. The ignition electrode is branched into more than four electrode branches extending away from the outer conductor, in different directions.

Abstract: An igniter for igniting a fuel/air mixture using a corona discharge, generated by a high-frequency electric high voltage, in an internal combustion engine having one or more combustion chambers delimited by walls at ground potential, comprising an ignition electrode, which traverses in an electrically insulated manner one of the walls delimiting the particular combustion chamber and constitutes in cooperation with the walls of the combustion chamber, that are at ground potential, an electrical capacitance. Comprising a metallic or metallized outer member and an elongate passage extending through the outer member, through which extends the ignition electrode, and comprising an insulator which encloses the ignition electrode and insulates it electrically from the outer member, wherein the ignition electrode, the insulator, and the passage have a common longitudinal direction.

Abstract: The invention relates to an ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, comprising an insulator which carries a center electrode, a coil attached to the center electrode, the coil being wound onto a bobbin and enclosed by a tube housing. According to the invention, the coil tapers toward the insulator.

Abstract: This disclosure relates to a method for producing a heating rod for a vehicle heating apparatus, said method comprising the following steps: arranging at least one PTC element and at least one contact element in a tube, which is formed from sheet metal and is open along a longitudinal side; welding portions of the sheet metal that bear against one another by means of a weld seam running in the longitudinal direction of the tube. This disclosure also relates to such a heating rod.

Abstract: The invention relates to a electric heating device for heating fluids, comprising at least one heating resistor, a screw, which defines a helical flow channel, and a tube housing, which surrounds the screw. In accordance with this disclosure, the screw has a core in which the at least one heating resistor is arranged.

Abstract: The invention relates to an HF ignition device for igniting a fuel in an internal combustion engine with a corona discharge, comprising an ignition electrode, an insulating body on which the ignition electrode is mounted, the insulating body having a continuous channel in which an inner conductor leading to the ignition electrode is disposed, and an outer conductor which encloses the insulating body and, in combination with a section of the inner conductor, forms a capacitor, wherein the channel is filled with an electrically conductive filling material which encloses at least one conductor piece that forms at least one section of the inner conductor.

Abstract: What is described is a corona ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, said corona ignition device comprising a housing, an insulator, which is held in the housing, a center electrode, which is held in the insulator, and at least one ignition tip at an and of the center electrode. The housing surrounds an interior, which has a cylindrical portion in which a cylindrical portion of the insulator sits. A widened interior portion adjoins at the end of the cylindrical interior portion remote from the ignition peak. The insulator has a thinner portion in the widened interior portion. The cylindrical portion of the insulator carries an electrically conductive coating, which ends before the thinner portion.

Abstract: What is described is a corona ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, said corona ignition device comprising a housing, an insulator, which is held in the housing, a centre electrode, which is held in the insulator, and at least one ignition tip at an and of the centre electrode. The housing surrounds an interior, which has a cylindrical portion in which a cylindrical portion of the insulator sits. A widened interior portion adjoins at the end of the cylindrical interior portion remote from the ignition peak. The insulator has a thinner portion in the widened interior portion. The cylindrical portion of the insulator carries an electrically conductive coating, which ends before the thinner portion.

Abstract: The invention relates to an ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, comprising an insulator which carries a center electrode, a coil attached to the center electrode, the coil being wound onto a bobbin and enclosed by a tube housing. According to the invention, the coil tapers toward the insulator.

Abstract: The invention relates to an ignition device for igniting fuel in an internal combustion engine by means of a corona discharge, comprising an ignition electrode, an outer conductor which surrounds the ignition electrode and has a forward end and a rear end, and an electrical insulator which is arranged between the ignition electrode and the outer conductor, wherein the insulator and the ignition electrode project beyond the forward end of the outer conductor in longitudinal direction and the ignition electrode comprises a plurality of electrode branches which each start from a base point, wherein the insulator extends beyond the base points in longitudinal direction. According to the invention an end surface of the electrode branches is uncovered.

Abstract: An igniter for igniting a fuel/air mixture using a corona discharge, generated by a high-frequency electric high voltage, in an internal combustion engine having one or more combustion chambers delimited by walls at ground potential, comprising an ignition electrode, which traverses in an electrically insulated manner one of the walls delimiting the particular combustion chamber and constitutes in cooperation with the walls of the combustion chamber, that are at ground potential, an electrical capacitance. Comprising a metallic or metallized outer member and an elongate passage extending through the outer member, through which extends the ignition electrode, and comprising an insulator which encloses the ignition electrode and insulates it electrically from the outer member, wherein the ignition electrode, the insulator, and the passage have a common longitudinal direction.

Abstract: The invention relates to an ignition device for igniting fuel in an internal combustion engine by means of a corona discharge, comprising an ignition electrode, an outer conductor which surrounds the ignition electrode and has a forward end and a rear end, and an electrical insulator which is arranged between the ignition electrode and the outer conductor, wherein the insulator and the ignition electrode project beyond the forward end of the outer conductor in longitudinal direction and the ignition electrode comprises a plurality of electrode branches which each start from a base point, wherein the insulator extends beyond the base points in longitudinal direction. According to the invention an end surface of the electrode branches is uncovered.

Abstract: An igniter for igniting a fuel-air-mixture in a combustion chamber, in particular in a combustion engine with one or several combustion chambers, by generating a high frequency corona discharge, said ignitiger comprising an assembly comprising an ignition electrode, an outer conductor surrounding the ignition electrode, which has a front end and a rear end, and an electrical insulator arranged between the ignition electrode and the outer conductor, wherein the ignition electrode is part of an electrical high-frequency resonant circuit, protrudes over the front end of the outer conductor, and is connected to an alternate current source or alternate voltage source which feeds the HF-resonant circuit, and delivers a high frequency alternate current or a high frequency alternate voltage, respectively. The ignition electrode is branched into more than four electrode branches extending away from the outer conductor, in different directions.

Abstract: The invention relates to an HF ignition device for igniting a fuel in an internal combustion engine with a corona discharge, comprising an ignition electrode, an insulating body on which the ignition electrode is mounted, the insulating body having a continuous channel in which an inner conductor leading to the ignition electrode is disposed, and an outer conductor which encloses the insulating body and, in combination with a section of the inner conductor, forms a capacitor, wherein the channel is filled with an electrically conductive filling material which encloses at least one conductor piece that forms at least one section of the inner conductor.

Abstract: The invention relates to an HF ignition device for igniting a combustible gas mixture in an internal combustion engine, comprising a center electrode (2), an insulating body (3) through which center electrode (2) extends, a housing (4) that carries, on one end thereof, a metallic housing body (5) that encloses at least one section of insulating body (3), and comprising an external thread (5a) to be screwed into an internal combustion engine, and a circuit for the HF excitation of the center electrode (2). According to the invention, the section of the insulating body (3) that encloses the housing body (5) comprises an electrically conductive coating (6).