*2.2. Conditions of Measuring Process*

963 Nm (90%)

 rpm

The pressure inside the cylinder was measured using the Kistler measuring equipment, which contains a pressure converter mounted in the first cylinder of the given engine [18–21].

 32.98  34.70  35.48 The pressure sensor was connected with the amplifier as well as with the sensor of crankshaft angular displacement. This arrangemen<sup>t</sup> enabled measuring the pressure values in the cylinder within the 0.5-degree range of the crankshaft angular displacement. The emissions of NOX were monitored by means of a special measuring system, which was intended for recording of the emissions [22,23].
