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Mechanically Actuated Electronic
Unit Injection (MEUI). A highly evolved
fuel system with a proven record of
reliability in the field. It combines the
technical advancement of an electronic
control system with the simplicity
of direct mechanically controlled unit
fuel injection. It excels in its ability
to control injection pressure over the
entire engine operating speed range.
These features allow the C11 to have
complete control over injection timing,
duration and pressure.
Air-to-Air Aftercooling (ATAAC).
ATAAC keeps air intake temperatures
down and, in concert with the tight
tolerance combustion chamber
components, maximizes fuel efficiency
and minimizes emissions. Significant
improvements in airflow are generated
by a turbocharger, unique cross-flow
head and a single overhead camshaft.
Wastegate Turbocharging. Single
wastegate turbocharger provides higher
boost over a wide range, outstanding
low-end performance with improved
peak torque and enhanced engine
response.
Electronic Transmission. The Caterpillar
six-speed electronically controlled
transmission is designed specifically for
the articulated truck and its applications.
It features anti-hunt shift strategy for
speed continuity.
Electronic Clutch Pressure Control.
ECPC technology works with the
Controlled Throttle Shifting to manage
shift torque and provide exceptional
shift smoothness.
Controlled Throttle Shifting (CTS).
Significantly reduces power train stress
and clutch wear by controlling engine
speed, torque converter lock-up and
transmission clutch engagements.
Engine Overspeed Inhibitor. Electronic
Transmission Control (ETC) protects
against engine overspeeding by shifting
the transmission up one gear at specified
rpm settings. If the transmission is in its
highest gear, torque converter lockup
disengages.
Directional Shift Management.
Regulates engine speed during directional
shifts to prevent damage caused by
high-speed directional changes.
Programmable Top Gear Selection.
Electronic Transmission Control lets
you electronically limit top gear selection
without the use of additional service
tooling or mechanical limiting of
the shift cane.
Retarder. Integral retarder with
high-power density design. Due to its
compact size, the unit quickly fills with
oil, providing more retarding power
and fast response times.
Retarder Power. Increased power
capability gives operators greater control
on short, steep grades and minimizes
the need to apply the brakes, resulting
in extended service brake life.
Hydraulic Fan. The remote-mounted
hydraulic fan is temperature sensitive
providing variable speeds when needed,
which minimizes power requirements.
The result is more power to the ground
and faster cycle times.
5
Performance and Productivity – Power Train
Integrated power train with more power, greater performance and lower fuel consumption.