Evaluation of the Capacity of the Auxiliary Blower Connected to a Constant-Pressure Turbocharged Two-Cycle Diesel Engine

抄録

For pressure-charging two-cycle Diesel engines with the constant pressure system, selfsustained operation of the turbocharger cannot be achieved owing to the low efficiency of the turbocharger, in which case some aid must be furnished to the turbocharger. One form of aiding the turbocharger is to attach a positive displacement blower or compressor to the engine. In this paper, by applying the same method of calculation of the variables to the performance of the turbocharged two-cycle Diesel engine as presented in the previous paper, the capacities of the auxiliary blower in series are calculated to meet reliably the given operating conditions at full load and the stable operation at idle running. Further, the effects of the blower capacity on the performance of a given engine are made clear by the same process. The results of this study are favourably comparable with those of experiment on a practical engine now in operation.