Milton CAT AP1055D - Manual (Page 4)

4
Cat ® C7 Engine with ACERT ® Technology
ACERT ® Technology incorporates a series of innovations working at the point of
combustion to optimize engine performance while meeting U. S. EPA Tier 3 and
E. U. Stage IIIa engine emission regulations.
Cat ® C7 Engine with ACERT ® Technology
The C7 engine provides a full-rated
gross power (SAE J1995) of 167 kW
(224 hp) at 2200 rpm with a torque of
872 N-m (643 ft/lb). The combination
of large displacement and high torque
allow the AP-1055D to perform under
the toughest conditions.
HEUI Fuel Injection
The HEUI™ fuel system is unique and
combines the technical advancement of
an electronic control system with the
simplicity of HEUI fuel injection. The
HEUI fuel system excels in its ability to
control injection pressure over the entire
engine operating speed range. These
features allow the C7 engine to have
complete control over injection timing,
duration and pressure.
Multiple Injection Fuel Delivery
Multiple injection fuel delivery involves
a high degree of precision. Precisely
shaping the combustion cycle lowers
combustion chamber temperatures,
which generates fewer emissions,
optimizes fuel combustion and
translates into more work output for
your fuel cost.
High Cylinder Pressures
High cylinder pressures combined with
tightly controlled tolerances promote
extremely efficient fuel burn, less
blow-by and lower emissions.
C7 Cylinder Block
The C7 engine’s cylinder block offers
increased tensile strength. It features
improved sealing with gaskets to ensure
fewer leaks. This new design supports
the engine’s higher compression ratios
and increases its power density. The
incorporation of straight-thread “O” ring
connection points reduce the loss of
engine oil and fluids.
Sound Reduction Features
The C7 engine sound reduction features
include composite valve covers with a
fully isolated base, a steel oil pan and a
cast iron front cover. The HEUI™ fuel
systems rate-shaping technology also
provides control of sound and vibration
levels.
Service, Maintenance and Repair
Easier service, maintenance and repair
is accomplished by monitoring key
functions and logging critical indicators.
Advanced electronic diagnostic
capabilities are possible using CAT
®
Electronic Technician.
Turbocharged and Air-To-Air
Aftercooling (ATAAC)
The turbocharged air-to-air aftercooling
system provides high horsepower with
increased response time while keeping
exhaust temperatures low for long
hours of continuous operation.
Air-to-air aftercooling keeps air intake
temperatures down, maximizing fuel
efficiency and minimizing emissions.
ADEM™ A4 Electronic Control Module
The ADEM A4 electronic control
module manages fuel delivery, valve
timing and airflow to get the most
performance per liter (gallon) of fuel
used. The control module provides
flexible fuel mapping, allowing the
engine to respond quickly to varying
application needs. The control module
also monitors engine and machine
conditions while keeping the engine at
peak efficiency.