System for measuring the pressure in a combustion chamber of an IC engine, uses the injector itself to measure the pressure

摘要

The method involves lifting a needle shaped injector pipe (2) is lifted from a valve seat (11) and turning its face (13) towards the combustion chamber (3). The needle pipe supports the pressure in the combustion chamber and retransmits to a sensor (piezoelectric sensor or pressure sensor) a resultant force of the pressure.