3
DETROIT DIESEL 53
SECTION 3
AIR INTAKE SYSTEM
CONTENTS
3
.............................................................................................................
Air Intake System
3.2
Air Silencer .......................................................................................................................
3.3
Air Shutdown Housing ...................................................................................................
3.4
.........................................................................................................
Blower (In-Line)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0
Shop Notes - Trouble Shooting - Specifications - Service Tools
AIR INTAKE SYSTEM
In the scavenging process employed in the Series 53
engines, a charge of air is forced into the cylinders by
the blower and thoroughly sweeps out all of the
burned gases through the exhaust valve ports. This air
also helps to cool the internal engine parts,
compression stroke, therefore, each cylinder is filled
with fresh, clean air which provides for efficient
The air, entering the blower from the air cleaner, is
picked up by the blower rotor lobes and carried to the
discharge side of the blower as indicated by the arrows
in Fig . 1
The continuous discharge of fresh air
from the blower enters the air chamber of the cylinder
block and sweeps through the intake ports of the
cylinder liners.
The angle of the ports in the cylinder liners creates a
uniform swirling motion to the intake air as it enters
the cylinders. This motion persists throughout the
Fig. 1 Air Flow Through Blower and Engine
compression stroke and facilitates scavenging and
(In-Line Engine)
SEC. 3 Page 1
March, 1973
