Injector Operation; Fuel Injector Features - International VT 275 V6 Manual

• Electro-hydraulic
• Two control coils
• Spool valve controlled inlet
• 48 volt operation
• short coil on-time
• self extracting clamps

Fuel Injector Features

• The VT 275 fuel system uses
electro-hydraulic injectors. The
injectors utilize lube oil pressurized
by the high-pressure pump to
provide the mechanical
needed to inject fuel into the
cylinders. Each injector has two coils.
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INJECTOR
OPERATION
• The IDM selectively signals the
coils with 48 volts to control the
position of the spool valve that
directs oil flow into and out of each
injector. After being positioned, the
spool is held in position with
force
residual magnetism. The coils draw
20 amps.
International ®
®
• No special tools are required to
remove the injector from their
bores. The injectors are self-
extracted from their bore when the
hold down clamp is removed.
VT 275 V6 Engine