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AssigneePiezocryst Advanced Sensorics GmbH
InventorsAlexander Schricker, Alexander Friedl, Michael Hirschler, Dietmar Kröger
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The invention relates to a glow plug with integrated pressure sensor for measuring pressure in the combustion chamber of an internal combustion engine, where the shell of the glow plug has a section of reduced diameter on the side next to the combustion chamber and following a sealing cone, which section houses a glow coil and ends in a tip extending into the combustion chamber, and where the pressure sensor is positioned without cooling in the section of the glow plug next to combustion chamber. According to the invention the pressure sensor is subjected to pressure in radial direction, the glow coil of the glow plug or the electrical leads of the glow coil being guided towards the tip of the glow plug either by bypassing the pressure sensor or going through the pressure sensor.
Glow plug with integrated pressure sensor for measuring pressure in a combustion chamber of an internal combustion engine, the shell of the glow plug having a section of reduced diameter next to the combustion chamber, which houses a glow coil and ends in a tip protruding into the combustion chamber, and the pressure sensor being positioned without cooling in the section of the glow plug having a reduced diameter, wherein the pressure sensor is subjected to pressure in radial direction, and the glow coil of the glow plug or its electrical leads are guided towards the tip of the glow plug, either bypassing the pressure sensor or going through the pressure sensor.
Glow plug with integrated pressure sensor for measuring pressure in a combustion chamber of an internal combustion engine, the shell of the glow plug having a section of reduced diameter next to the combustion chamber, which houses a glow coil and ends in a tip protruding into the combustion chamber, and the pressure sensor being positioned without cooling in the section of the glow plug having a reduced diameter, and the electrical leads of the glow coil being guided towards the tip of the glow plug by going through the pressure sensor, wherein the pressure sensor is subjected to pressure in radial direction.
Dependencies are inferred from the claim text.