DEVICE TO CHECK OPERATION OF DIESEL ENGINE Russian patent published in 1997 - IPC

FIELD: mechanical engineering; checking facilities. SUBSTANCE: device of known design has series-connected fuel pressure pickup, amplifier and measuring unit and reference voltage source. Installed additionally in device are series-connected differentiating unit, voltage summer and comparator whose output is connected with second input of measuring unit, and second input is connected to output of amplifier whose output is connected with input of differentiating unit. Reference voltage source is connected by its output with second input of voltage summer and third input of measuring unit. EFFECT: improved accuracy of measurement of diesel engine parameters owing to adaptive determination of nozzle opening and closing moments. 2 dwg