Device for detecting the pressure in a cylinder of an internal combustion engine

摘要

A device for detecting the pressure in a cylinder of an internal combustion engine is disclosed, which device comprises a piezoelectric pressure sensor and a flow inlet circuit. The sensor senses the pressure in the cylinder. The flow inlet circuit receives the output signal of the sensor in the form of a current and produces an output signal corresponding to the flow value in the form of a voltage or a current.