Abstract: The invention relates to a liquid extraction module (1) for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, having an insert part (2) which is produced at least substantially from plastic and which has at least one extraction opening (5) and at least one plug connector (14) for the electrical contacting of an electrical consumer (10, 7) of the liquid extraction module (1). It is provided that a housing (16) of the plug connector (14) is formed separately and has at least one encapsulated undercut (22, 32) for fastening to the insert part (2).

Abstract: The invention relates to a tank insert module (1) for extracting liquid from a vehicle tank, comprising a basic body (2) composed of a plastic, on which basic body are arranged a liquid extraction device (23), which comprises an extraction opening (4) which can be assigned to the tank interior space, and at least one electric heating element (7), wherein the electric heating element (7) comprises a heating body (8) with an extrusion-coated plastic encapsulation (9). It is provided here that the plastic encapsulation (9) has a plastic which can be welded to the basic body, in particular high-density polyethylene, and/or the same plastic as the basic body (2), and also at least one filler material with high thermal conductivity, and is welded to the basic body (2) at at least one contact point (17). The invention also relates to a liquid tank for vehicles.

Abstract: The invention relates to a liquid extraction module (1) for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, comprising a basic body (2) which can be arranged in and/or on the vehicle tank and which bears a liquid extraction device (6) with an extraction orifice (5) that can be assigned to the tank interior, and at least one electric heating element (20). According to the invention, at least one heat-conducting element (18) is provided, said element having at least one first portion (24) assigned to the heating element (20) and one second portion (25) assigned to the extraction orifice (5), in order to transport the heat from the heating element (20) to the extraction orifice (5). The invention further relates to a liquid tank for a vehicle.

Abstract: A chuck for supporting and retaining a test substrate includes a device for supporting and retaining a calibration substrate. The chuck comprises a first support surface for supporting a test substrate and a second support surface, which is laterally offset to the first support surface, for supporting a calibration substrate. The calibration substrate has planar calibration standards for calibration of a measuring unit of a prober, and dielectric material or air situated below the calibration substrate at least in the area of the calibration standard. In order to be able to take the actual thermal conditions on the test substrate and in particular also on known and unknown calibration standards and thus the thermal influence on the electrical behavior of the calibration standard used into consideration, the second support surface is equipped for temperature control of the calibration substrate.

Abstract: The invention relates to a liquid extraction module (1) for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, having an insert part (2) which is produced at least substantially from plastic and which has at least one extraction opening (5) and at least one plug connector (14) for the electrical contacting of an electrical consumer (10, 7) of the liquid extraction module (1). It is provided that a housing (16) of the plug connector (14) is formed separately and has at least one encapsulated undercut (22, 32) for fastening to the insert part (2).

Abstract: The invention relates to a liquid extraction module (1) for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, comprising a basic body (2) which can be arranged in and/or on the vehicle tank and which bears a liquid extraction device (6) with an extraction orifice (5) that can be assigned to the tank interior, and at least one electric heating element (20). According to the invention, at least one heat-conducting element (18) is provided, said element having at least one first portion (24) assigned to the heating element (20) and one second portion (25) assigned to the extraction orifice (5), in order to transport the heat from the heating element (20) to the extraction orifice (5). The invention further relates to a liquid tank for a vehicle.

Abstract: The invention relates to a tank insert module (1) for extracting liquid from a vehicle tank, comprising a basic body (2) composed of a plastic, on which basic body are arranged a liquid extraction device (23), which comprises an extraction opening (4) which can be assigned to the tank interior space, and at least one electric heating element (7), wherein the electric heating element (7) comprises a heating body (8) with an extrusion-coated plastic encapsulation (9). It is provided here that the plastic encapsulation (9) has a plastic which can be welded to the basic body, in particular high-density polyethylene, and/or the same plastic as the basic body (2), and also at least one filler material with high thermal conductivity, and is welded to the basic body (2) at at least one contact point (17). The invention also relates to a liquid tank for vehicles.

Abstract: A pressure measuring device suitable for disposition in a chamber of an internal combustion engine. The pressure measuring device has a housing, a force transmitting element that is effectively connected to a pressure sensor, and a sensor cage that surrounds the pressure sensor. The sensor cage is connected to the housing by a circumferential weld seam only at one connection segment of the housing. In this way, it is possible to achieve a defined pre-tensioning of a metal diaphragm that is connected on the one hand to the sensor cage and on the other hand to the force transmitting element.

Abstract: A chuck for supporting and retaining a test substrate includes a device for supporting and retaining a calibration substrate. The chuck comprises a first support surface for supporting a test substrate and a second support surface, which is laterally offset to the first support surface, for supporting a calibration substrate. The calibration substrate has planar calibration standards for calibration of a measuring unit of a prober, and dielectric material or air situated below the calibration substrate at least in the area of the calibration standard. In order to be able to take the actual thermal conditions on the test substrate and in particular also on known and unknown calibration standards and thus the thermal influence on the electrical behavior of the calibration standard used into consideration, the second support surface is equipped for temperature control of the calibration substrate.

Abstract: A glow plug for a combustion chamber of a self-igniting internal combustion engine has a ceramic heating element designed as a sheathed-element glow plug, which is surrounded by a supporting tube. The ceramic heating element is sealed with respect to the combustion chamber of the internal combustion engine by a seal in the supporting tube. The seal is designed as a sealing element made of an FeNi alloy having an Invar effect.

Abstract: The invention relates to a component for installation in force or pressure sensors, in particular in a glow plug. The component comprises a disc-type or punched-disc type measuring element consisting of a piezoelectric material, punched-disc type or disc-type electrodes that lie on either side of the measuring element. The electrodes have contact points for contacting conductors. The component comprises in addition a respective transmission body or several transmission bodies that are located outside the electrodes, on either side of the latter. The measuring element, electrodes and transmission bodies are held together mechanically by an external, electrically insulating film.

Abstract: A pressure-measuring device is situated in a chamber of an internal combustion engine. The pressure-measuring device has a housing, a force-transmitting element that protrudes partly from the housing at a chamber-side opening of the housing, and a pressure sensor that is situated in an interior space of the housing. The pressure sensor stands in effective connection to the force-transmitting element. In addition, a diaphragm is provided that seals the interior space of the housing, in which the pressure sensor is situated, against the chamber-side opening. The diaphragm, which is preferably fashioned as a metal diaphragm, has a force-transmitting segment that is oriented in an axial direction of the force-transmitting element. Moreover, the pressure sensor stands in effective connection with the force-transmitting element via the force-transmitting segment of the diaphragm.

Abstract: A pressure measuring device suitable for disposition in a chamber of an internal combustion engine. The pressure measuring device has a housing, a force transmitting element that is effectively connected to a pressure sensor, and a sensor cage that surrounds the pressure sensor. The sensor cage is connected to the housing by a circumferential weld seam only at one connection segment of the housing. In this way, it is possible to achieve a defined pre-tensioning of a metal diaphragm that is connected on the one hand to the sensor cage and on the other hand to the force transmitting element.

Abstract: A pressure-measuring device is to be placed in a chamber of an internal combustion engine. The pressure-measuring device has a housing, a force-transmission element projecting out of the housing, and a pressure sensor disposed in an interior chamber of the housing. On the one hand, the pressure sensor is braced on a fixation element. On the other hand, to detect a pressure prevailing inside the chamber, the pressure sensor is operatively connected to the force-transmission element. The pressure sensor has a straight-through recess through which an electrical line is routed. In addition, a positioning element is provided, which has a straight-through recess in a guide region, the electrical line being routed through the straight-through recess, and the positioning element having a reduced thickness in the guide region. This makes it possible to reduce friction of the electrical line in the guide region at the straight-through recess, so that the pressure measurement is improved.

Abstract: A method is provided for calibration of a vectorial network analyzer, having n measurement ports (n>1) and at least m measurement sites with n+1<m<2n. Calibration includes measurement of three different n-port reflection standards connected between the measurement ports in any sequence, and measurement of different transmission standards connected between two measurement ports, and mathematical determination of the error coefficients of the network analyzer and the error-corrected scattering matrices [Sx] of the n-port calibration standards. The reflection standards, similar to shorts and opens, are unknown and the reflection standard implemented by wave terminations is known, but can be different at each n-fold one-port. The measurement of the transmission standards occurs on a transmission standard known in length and attenuation, which is implemented on each possible two-port by different combination of measurement ports.

Abstract: Method for calibrating a vectorial network analyzer, with n measurement ports (n>2) and at least m measurement sites, where m>n+1 includes measurement of three different n-port reflection standards, connected between measurement ports in any desired order, and successive measurement of reflection and transmission parameters at different transmission standards, connected between two respective measurement ports, and computational determination of error coefficients and error-corrected scattering matrices [Sx] of the n-port standards. Reflection standards, Short and Open, are unknown, but physically identical at each n-fold one-port. Reflection standard, realized by wave terminations, is known, but can be different at each n-fold one-port. Transmission standards are measured at a transmission standard, having known length and attenuation at a two-port, and at unknown transmission standards, identical for incident and reflected waves at remaining two-ports, which can be connected.

Abstract: A sheathed-element glow plug is used to be situated in a chamber in an internal combustion engine. The sheathed-element glow plug has a housing, a pin-shaped heating element, which extends partially from the housing and a pressure sensor which is situated in an inner chamber of the housing. A prestressing sleeve is provided, in this context, which applies a prestressing to the pressure sensor.

Abstract: A pressure-measuring device is situated in a chamber of an internal combustion engine. The pressure-measuring device has a housing, a force-transmitting element that protrudes partly from the housing at a chamber-side opening of the housing, and a pressure sensor that is situated in an interior space of the housing. The pressure sensor stands in effective connection to the force-transmitting element. In addition, a diaphragm is provided that seals the interior space of the housing, in which the pressure sensor is situated, against the chamber-side opening. The diaphragm, which is preferably fashioned as a metal diaphragm, has a force-transmitting segment that is oriented in an axial direction of the force-transmitting element. Moreover, the pressure sensor stands in effective connection with the force-transmitting element via the force-transmitting segment of the diaphragm.

Abstract: In combustion chamber signal-based engine control in particular, a reliable and at the same time cost-effective option for detecting a combustion chamber pressure in compression-ignition internal combustion engines is required. A sheathed element glow plug is proposed, which has a glow plug module and a pressure measuring module connected to the glow plug module. The glow plug module has a heating element and a glow plug housing. The pressure measuring module has at least one force measuring element, which is integrated into the pressure measuring module. The at least one force measuring element is designed to generate an electrical signal as a function of a force. In the mounted state of the sheathed element glow plug, the at least one force measuring element is connected to the heating element in such a way that a force is transmittable to the at least one force measuring element via the heating element.