PRIN. OF INTERNAL COMBUSTION ENGINES - OD1619 LESSON 1/TASK 2
LESSON 1
INTERNAL COMBUSTION ENGINES
TASK 2.
Describe the principles, components, and operation of both the two
stroke and four stroke diesel engines.
CONDITIONS
Within a self-study environment and given the subcourse text, without assistance.
STANDARDS
Within one hour
REFERENCES
No supplementary references are needed for this task.
1.
Introduction
In task 1, the gasoline piston engine was discussed. In this task, the operation
of a four stroke gasoline engine and a four stroke diesel engine will be compared.
In addition, information will be provided on the two stroke diesel engine and the
combustion chambers.
2.
Gasoline Engine Versus Diesel Engine
a. General. In many respects, the four stroke cycle gasoline engine and the four
stroke cycle diesel engine are very similar. They both follow an operating cycle
consisting of intake, compression, power, and exhaust strokes. They also share the
same system for intake and exhaust valves. The component parts of a diesel engine
are shown in (figure 25). The main differences between gasoline engines and diesel
engines follow:
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