Studies on the Power Transmission System of Power Tiller (III)

The Characteristics of Governing of the Compression Ignition Engine

Abstract

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.