Prediction and Analysis of Engine Friction Power of a Diesel Engine Influenced by Engine Speed, Load, and Lubricant Viscosity

Table 1

Engine specifications.

1	Engine type	Off-highway, DI diesel engine turbocharged
2	Displacement	4399 cc
3	Compression ratio	18.3 : 1
4	Number of cylinders	4
5	Number of valves	16
6	Fuel injection	Direct injection
7	Maximum power output	74.2 kW @ 2200 rpm