The characteristics of governing of the water cooled and the air cooled diesel engine have been tested and considered by the automatic control engineering.
The characteristics of governing of the diesel engines have been affected upon the following system parameters; internal resistance
f or
k1, time constant of engine
T1, sensitivity of fuel supply
k2, time constant of fuel adjusting
T2, sensitivity of governor
k3.
When these parameters of the diesel engines compared with those of the spark ignition engines (previous report I), the time constant of engine
T1 and of fuel adjusting
T2 of the diesel engines are larger than the spark ignition engines, but the internal resistance
f and sensitivity of governor
k3 are smaller than the spark ignition engines.
In the diesel engines, the speed variations for the load fluctuations are smaller than the spark ignition engines, because the system parameter ω
n of diesel engine are small.
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