INTRODUCTION TO THE HMMWV - OD1615 - LESSON 1/TASK 2
LESSON 1
THE BASIC CHARACTERISTICS OF THE HMMWV FOV AND THE
CHARACTERISTICS AND OPERATION OF THE HMMWV ENGINE
TASK 2.
Describe the characteristics
and
operation
of
the
6.2
liter
diesel engine.
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 the preceding task, the general characteristics of the high mobility
multi-purpose wheeled vehicle (HMMWV) were discussed; this discussion
included the vehicle weight and dimensions.
In this task, the
characteristics and operation of the 6.2 liter diesel engine will be
discussed.
The engine used to power this family of vehicles (FOV) is a four-stroke, 6.2
liter, V8, diesel engine. The engine is a one-piece cast iron block with
overhead valves. The engine is governed at 3600 rpm with a power output of
approximately 150 horsepower. The normal operating range of the engine is
between 1500 and 2300 rpm.
There are six subsystems that support the
operation of the engine.
These subsystems are:
fuel, air, cooling,
lubrication, electrical, and exhaust. In the paragraphs that follow, each
of these subsystems will be discussed.
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