INTRODUCTION TO THE HMMWV - OD1615 - LESSON 1/TASK 2
THE BASIC CHARACTERISTICS OF THE HMMWV FOV AND THE
CHARACTERISTICS AND OPERATION OF THE HMMWV ENGINE
Describe the characteristics
Within a self-study
Within one hour
No supplementary references are needed for this task.
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
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.