Turbocharged, ATAAC. Turbocharging
packs dense air into the cylinders for
more complete combustion and lower
emissions. Air-to-air aftercooling
(ATAAC) provides a separate cooling
system for intake manifold air.
The ATAAC system reduces smoke
and emissions by providing cooler inlet
air for more efficient combustion.
Constant Net Horsepower. The 938G II’s
electronic engine is integrated with an
on-demand cooling fan. The engine
compensates for varying fan loads
and provides constant net horsepower,
regardless of operating conditions.
A consistent level of “working”
horsepower is provided and fuel
consumption is reduced.
Oil Change Intervals. The engine
oil change interval is increased to
500 hours (with CH-4 oil), reducing
costs and downtime.
4Powerful Performance. The 3126B
ATAAC engine delivers net power of
119 kW (160 hp), and meets EPA Tier 2
emissions standards. Its advanced system
keeps fuel at low pressure in the fuel
lines until it is injected into the cylinder.
Fuel pressure is created hydraulically in
response to a signal from the ADEM III™
Electronic Control Module.
Electronic Control Module. The Advanced
Diesel Engine Module (ADEM III) fuel
system is a proprietary electronic control
module, which provides improved
engine response and fuel efficiency,
plus advanced diagnostics and reduced
emissions. Altitude capability is increased
to 3050 meters (10,000 feet) without
derating. ADEM III allows full electronic
integration of the engine and transmission
for maximum power train efficiency.