The combustion space pressure sensor, internal combustion engine and method for measurement of a combustion chamber pressure in a combustion chamber of an internal combustion engine

摘要

The present invention relates to a combustion space pressure sensor (21) for measuring a combustion chamber pressure in a combustion chamber of an internal combustion engine, which a sensor element (10), which comprises a to the sensor element (10) acting pressure (p) which converts into an electrically measurable size. The sensor element (10) is in this case designed as an electrically conductive powder, which, in the case of a change in the on the sensor element (10) acting pressure (p) a change in its electrical resistance (r) undergoes and the sensor element (10) in such a way is within a pressure pipe (8) arranged in such a way that a change in the on the pressure pipe (8) a change of the combustion chamber pressure acting on the sensor element (10) acting pressure (p) causes. The present invention also relates to an internal combustion engine, which contains at least a combustion space pressure sensor according to the invention (21, 22, 23, 24) comprises. The present invention also relates to a process for the measurement of a combustion chamber pressure in a combustion chamber of an internal combustion engine, wherein an electrical resistance (r) of a sensor element (10) is measured, wherein the sensor element (10) is designed as an electrically conductive powder, which, in the case of a change in the on the sensor element (10) acting pressure (p) a change in its electrical resistance (r), and wherein the sensor element (10) within a in such a way that extends into the combustion chamber pressure pipe (8) is arranged, that a change of on the pressure pipe (8) a change of the combustion chamber pressure acting on the sensor element (10) acting pressure (p) causes.