Piezoelektrischer Sensor zur Aufnahme von Druckschwingungen und dessen Anordnung bei Verbrennungsmotoren

The invention relates to a piezoelectric sensor to pick up compression oscillations from combustion engines and its force-fitted clamped arrangement in the region of the cylinder head gasket between the cylinder block and the cylinder head, characterized by the following features: the piezoelectric component (4) is secured permanently to a fixed axial housing wall (2a) within a housing (2) whose thickness is definable; said housing wall (2a) is located in a directly or indirectly elastic clamping arrangement against one of the sealing surfaces of the cylinder block (20) or cylinder head (21) adjacent to the cylinder head gasket (11). The sensor (1) can be supported, preferably by its housing wall (2a), in a recess (23) in one of the sealing surfaces of the cylinder block (20) or the cylinder head (21) adjacent to the cylinder head gasket (11) and is thus arranged extending through the cylinder head gasket (11) and a groove (24).