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 comprising a housing (1), a glow element (2) which extends out of the housing (1), a supply lead (4) which is connected to the glow element (2) via a contact spring (5) and is enclosed by the housing (1). According to the invention, the contact spring (5) is a sleeve having at least one slit (6) extending transversely to the longitudinal direction of the sleeve.

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, comprising a housing, a heater rod, which is movable in the housing in axial direction and projects from the housing at a forward end, and a pressure measuring device for measuring a combustion chamber pressure exerted on the heater rod. It is provided according to the invention that a housing chamber is filled with a substance having or achieving liquid to paste-like consistency at temperatures occurring during operation and conducting heat generated by the heater rod to the housing.

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.

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).