Abstract: An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.

Abstract: A method for controlling the surface temperature of any glow plug in an internal combustion engine. A glow plug control device carries out an initialization at the installed and connected glow plug to adapt the temperature model to the behavior of the connected glow plug before the engine is started. Upon initialization, the glow plug is acted on by at least two different voltages and the resistances of the glow plug with these voltages are measured. A resistance gradient is calculated therefrom and the temperature model is adapted to the behavior of the connected glow plug. During the control process during operation of the engine, the momentary surface temperature of the glow plug is estimated by a model temperature, which is established using the temperature model. The effective voltage acting on the glow plug is changed in accordance with the deviation of the model temperature from a target temperature.

Abstract: An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.

Abstract: The invention relates to a pressure gauge for measuring the pressure in a combustion chamber of an engine, comprising a housing, a tappet, which is movable in the housing in an axial direction under the action of combustion chamber pressure, a sensor for detecting an axial displacement of the tappet, and a force transmitter, in order to transmit a force loading the tappet to the sensor. In accordance with the invention, the force transmitter has at least one damping section for damping flexural vibrations, at which its flexural rigidity is reduced.

Abstract: A glow plug includes a ceramic glow pencil, a protective sleeve from which the glow pencil protrudes, and a housing from which the protective sleeve protrudes. The protective sleeve is fastened to the glow pencil via a holding element which is disposed outside of the housing and is soldered to the glow pencil. The ceramic glow pencil includes a substantially cylindrical inner conductor disposed along a length of a distal end of the ceramic glow pencil, an insulating layer disposed over the inner conductor, and an outer conductive layer disposed over the insulating layer, wherein the outer conductive layer is connected to the inner conductor at the distal end of the ceramic glow pencil.

Abstract: A pressure measuring device includes a housing and a rod which is movable in the axial direction in the housing under the effect of combustion chamber pressure where the rod protrudes from the housing. A sensor measure combustion chamber pressure acting on the rod, and a first diaphragm is attached to the housing through which the rod extends. A second diaphragm is attached to the housing through with the rod extends between the sensor and the first diaphragm. The second diaphragm generates a return force when the rod undergoes axial displacement caused by pressure on the rod.

Abstract: The invention relates to a pressure gauge for measuring the pressure in a combustion chamber of an engine, comprising a housing, a tappet, which is movable in the housing in an axial direction under the action of combustion chamber pressure, a sensor for detecting an axial displacement of the tappet, and a force transmitter, in order to transmit a force loading the tappet to the sensor. In accordance with the invention, the force transmitter has at least one damping section for damping flexural vibrations, at which its flexural rigidity is reduced.

Abstract: The invention relates to a method for controlling a glow plug to a target value of the surface temperature while the engine is running. An effective voltage is generated by pulse width modulation of a vehicle electrical system voltage. This effective voltage is applied to the glow plug. The electric resistance of the glow plug is measured and compared to a resistance value expected for the target value of the surface temperature. The effective voltage is varied as a function of the deviation of the measured value of the electric resistance from the expected value of the electric resistance. A pressure sensor of the glow plug is used to measure the combustion chamber pressure. The resistance value expected for the target value of the surface temperature is determined as a function of the combustion chamber pressure.

Abstract: A method for controlling the surface temperature of any glow plug in an internal combustion engine. A glow plug control device carries out an initialization at the installed and connected glow plug to adapt the temperature model to the behaviour of the connected glow plug before the engine is started. Upon initialization, the glow plug is acted on by at least two different voltages and the resistances of the glow plug with these voltages are measured. A resistance gradient is calculated therefrom and the temperature model is adapted to the behaviour of the connected glow plug. During the control process during operation of the engine, the momentary surface temperature of the glow plug is estimated by a model temperature, which is established using the temperature model. The effective voltage acting on the glow plug is changed in accordance with the deviation of the model temperature from a target temperature.

Abstract: Glow plug, particularly for operation in a combustion engine, comprising at least one heating rod (1) and at least one body (2) and at least one annular gap (3) between the heating rod (1) and the body (2) and at least one chamber (4) primarily arranged between the heating rod (1) and the body (2).

Abstract: Device for creating a temperature gradient, especially in gaseous media, comprising at least one ohmic resistor and at least two non-conducting insulators and at least one casing and at least one elastic element positioned between the non-conducting insulator and the casing.

Abstract: The invention relates to a device and a method for determining combustion chamber pressure, having at least one glow filament, at least one measuring element, at least two spring membranes, and at least one tubular base.

Abstract: The invention relates to a pressure measuring device comprising a housing, a rod which is movable in the axial direction in the housing under the effect of combustion chamber pressure and protrudes from the housing, a sensor for measuring combustion chamber pressure acting on the rod, and a diaphragm attached to the housing and through which the rod extends. According to the invention, a second diaphragm said second diaphragm generating a return force when the rod undergoes axial displacement caused by pressure on the rod is disposed between the sensor and the diaphragm.

Abstract: The invention relates to a glow plug comprising a glow pin, a housing from which the glow pin protrudes, and a supply line which runs in the housing and is connected to the glow pin so as to apply an electric voltage, and a sensor. According to the invention, it is provided that the supply line surrounds an interior in which a signal line connected to the sensor is arranged.

Abstract: The invention relates to a cylinder pressure sensor comprising a housing for clamping into a cylinder head, which carries a sensor element at a front end. According to the invention, the cylinder pressure sensor has a conical seat at the front end thereof.

Abstract: The invention relates to a glow plug comprises a ceramic glow pencil, a protective sleeve from which the glow pencil protrudes, a housing from which the protective sleeve protrudes. According to the invention, the protective sleeve is fastened to the glow pencil via a holding element which is disposed outside of the housing and is soldered to the glow pencil.

Abstract: The invention describes an ignition device for a combustion engine with one or several combustion chambers, to each of which an ignition device is associated and exhibits a sensor which reacts to a measurand, which is influenced by a combustion cycle taking place in the respective combustion chamber. According to the invention it is provided that the sensor is an acceleration sensor.

Abstract: The invention relates to a method for controlling a glow plug to a target value of the surface temperature while the engine is running, wherein an effective voltage is generated by pulse width modulation of a vehicle electrical system voltage and this effective voltage is applied to the glow plug, the electric resistance of the glow plug is measured and compared to a resistance value expected for the target value of the surface temperature, and the effective voltage is varied as a function of the deviation of the measured value of the electric resistance from the expected value of the electric resistance. According to the invention, a pressure sensor of the glow plug is used to measure the combustion chamber pressure and the resistance value expected for the target value of the surface temperature is determined as a function of the combustion chamber pressure.

Abstract: The invention relates to a device and a method for determining combustion chamber pressure, having at least one glow filament, at least one measuring element, at least two spring membranes, and at least one tubular base.

Abstract: The invention relates to a glow plug for diesel engines, having a glow plug body comprising an external thread for threading into a threaded hole of a diesel engine, a heating rod that is displaceable in an axial direction of the glow plug body and protrudes from it, a pressure measuring device for measuring a combustion chamber pressure acting on the heating rod, and a sealing membrane disposed between the glow plug body and the heating rod. It is provided according to the invention that an annular or sleeve-shaped vibration damper composed of a perfluorelastomer is disposed between the glow plug body and the heating rod for damping radial oscillations of the heating rod.