Patent ID: 6125690
Filing Date: 2000-10-03
Classification: G01D,G01N

Abstract:
A device for generating a series of output signals in relation to a rotating output shaft of a diesel fuel test engine having means for generating a series of engine signals, each engine signal occurring at a first angular orientation of the output shaft, each output signal being generated at a second angular orientation of the output shaft, the device comprising:an input for receiving the series of engine signals;means for measuring the angle of rotation of the output shaft relative to the occurrence of each engine signal;means for determining an angular interval between said first and second angular orientations of the output shaft, in the direction of rotation of the output shaft;means for generating said output signal when the measured angle of rotation of the output shaft corresponds to said angular interval;wherein each engine signal occurs at top dead center (TDC) compression of the engine; and,wherein said series of engine signals forms a series of primary engine signals, the device further comprising means for receiving a series of secondary engine signals from the engine, each secondary engine signal representing the start of fuel injection into the engine before a combustion stroke thereof, said means for receiving the secondary engine signals being connected to the counter so as to arm the counter upon receiving each secondary signal.