PRIN. OF INTERNAL COMBUSTION ENGINES - OD1619 LESSON 2/TASK 3
LESSON 2
INTERNAL COMBUSTION ENGINE SUBSYSTEMS
TASK 3.
Describe the principles, components, and operation of the cooling
system.
CONDITIONS
Within a selfstudy environment and given the subcourse text, without assistance.
STANDARDS
Within one hour
REFERENCES
No supplementary references are needed for this task.
1.
Introduction
All internal combustion engines are equipped with some type of cooling system
because of the high temperatures generated during operation. High temperatures are
necessary to produce the high gas pressures that act on the head of the piston.
Power cannot be produced efficiently without high temperatures. However, it is not
possible to use all of the heat of combustion without harmful results. The
temperature in the combustion chamber during the burning of the fuel is well above
the melting point of iron. Therefore, if nothing is done to cool the engine during
operation, valves will burn and warp, lubricating oil will break down, and bearings
and pistons will overheat, resulting in engine seizure.
This task will describe the principles, components, and operation of the cooling
system.
2.
Cooling Essentials
a.
Cooling Mediums.
79
Previous Page
