Bendix Commercial Vehicle Systems 360CC SINGLE CYLINDER COMPRESSOR User Manual

11 and 13 big bore engines, Description, General information

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DESCRIPTION

The function of the air compressor is to provide and maintain
air under pressure to operate devices in air brake systems.
The Bendix

®

360cc compressor is a single-cylinder

compressor with a rated displacement of 15.8 cubic feet
per minute at 1250 RPM. The compressor consists of an
integral water-cooled cylinder head assembly and water-
cooled crankcase.

The cylinder head assembly is made up of an aluminum
cylinder head, an aluminum cooling plate, and a steel valve
plate assembly with two sealing gaskets. The cylinder head
contains air and water ports. The cooling plate, situated
between the head and valve plate, assists in cooling the
head assembly. The valve plate assembly, consisting of
brazed steel plates, has separate valve openings and
passages to allow air and coolant to

fl ow in and out of the

compressor. See Figure 1 for an external view, and Figure
3 for an exploded view.

The compressor is equipped with a safety valve in the
cylinder head safety valve port, directly connected to the
discharge port. The safety valve protects the compressor
head in the event of excessively high discharge line
pressure, for example, in the event of blockage downstream
of the compressor. Excessive air pressure causes the
safety valve to unseat, releases air pressure and gives an
audible alert to the operator.

The compressor is cooled by air

fl ow as well as by engine

coolant. The engine coolant

fi rst enters the crankcase

water jacket to cool the cylinder bore, then passes through
passages in the valve plate assembly, cooling plate, and
cylinder head and then out of a port at the top of the
compressor, back to the engine.

A nameplate is attached to a

fl at cast face on the side of

the crankcase. It is stamped with information identifying
the compressor designation, customer piece number,
compressor assembly part number and serial number.
See Figure 2.

GENERAL INFORMATION

This Bendix® 360cc compressor is a “discharge line
unloader” (DLU) style compressor, meaning that the
compressor pumps continuously, unlike some compressor
designs which use an "unloader" mechanism in the
compressor head to switch from a pumping mode to a
non-pumping mode. Instead, the control of air delivery to
the vehicle’s air system is managed by using a separate
discharge line unloader valve mounted in parallel with a
turbo cut-off style of air dryer (see Figure 6).

SD-01-3121

BENDIX

®

360CC SINGLE CYLINDER COMPRESSOR FOR

INTERNATIONAL MAXXFORCE

11 AND 13 BIG BORE ENGINES

MAXXFORCE

is a trademark of International Engine Intellectual Property Company, LLC.

FIGURE 1 - BENDIX

®

360cc SINGLE CYLINDER

COMPRESSOR

FIGURE 2 - NAMEPLATES (TWO STYLES)

Safety

Valve

Cooling

Plate

Valve Plate

Assembly

Cylinder

Head

Crankcase

Coolant

Enters Here

Locating

Pins

Coolant Exits at

Top of Head

(See Figure 7)

Bendix Part Number . . . . . . A
Customer Piece Number . . . . B
Compressor Serial Number . . C

A

B

C

A

B

C

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