DCE80-100E
Technical Handbook
Engine TAD720VE
Description
20
P.Group 30
TDCE01
04GB
Overview
The TAD720VE engine is a 6-cylinder, inline, 4-stroke, low emis-
sion diesel engine with overhead valves. The engine is turbo-
charged, i.e. combustion air is supplied under pressure. As a
result, the quantity of fuel injected can be increased, which in-
creases the engine output. The turbocharger is driven by the ex-
haust gases and uses energy that would otherwise be lost.
In order to further increase the engine efficiency, the engine is
equipped with a air-to air intercooler.
The engine is pressure-lubricated by an oil pump which delivers
oil to all lubrication points. A full-flow oil filter effectively cleans the
lubricating oil. An integrated, side mounted oil cooler is cooling
the entire oil flow.
The fuel system is protected against impurities by replaceable fil-
ters.
To maintain a controlled working temperature in cylinders and
combustion chambers, the engine is provided with piston cooling.
The low emission engine has a new design of combustion cham-
ber, injection equipment and charge air cooler (intercooler) which
satisfy future emission requirements from both the USA (Califor-
nia) and Europe. The new engines represent a considerable im-
provement, not only in terms of exhaust gas emissions, but also
in terms of power and torque curves.
In addition, all Volvo engines comply with the R24 exhaust smoke
requirements.
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