Copyright by Goodheart-Willcox Co., Inc.
338 Auto Engine Repair
Serpentine
belt
Gear case
Drive
pulley
Extension
housing
Supercharger
Throttle body
Air inlet
Figure 16-13. A supercharger is normally mounted on top of the intake manifold. Note the basic parts of a supercharger. (Land Rover)
Supercharger
housing
Gear
case
Extension
housing
Bearing
Drive pulley
Rear bearings
Rotors
Timing
gears
Front
bearings
Figure 16-14. This is a top cutaway view of a supercharger.
Note the parts of the supercharger.
Intercooler lines.
Intercooler pump.
Intercooler radiator.
The intercooler is an air-to-liquid heat exchanger
mounted between the supercharger and the engine. It
consists of cooling tubes surrounded by cooling fins, similar
to an engine radiator. The hot boost air leaving the super-
charger flows through the intercooler fins and over the
cooling tubes. Since the temperature of the coolant in the
intercooler is lower than the hot boost air, heat is transferred
from the air to the fins, cooling tubes, and into the coolant.
The coolant carries this heat away from the intercooler.
The intercooler coolant is a mixture of 50% water
and 50% antifreeze. A small reservoir is normally provided
for servicing the coolant.
The intercooler radiator is a small heat exchanger for
transferring heat from the intercooler coolant to the outside
air. It is often mounted in the lower, front of the engine
compartment. The intercooler radiator is positioned so that
cool outside air can flow through the radiator fins.
Intercooler lines carry the coolant from the inter cooler
to the intercooler radiator and back to the intercooler. The
lines can be metal or rubber. An intercooler pump forces
the coolant through the system. This is a small electric
water pump that keeps the coolant circulating through the
cooling tubes and intercooler radiator.