D12 Volvo
D12 Volvo
D12 Volvo
Well-dimensioned
cooling system with high
efficiency
The thermostat is integrated in the
cylinder head, providing a compact
construction.
The engine has wet cylinder liners for
efficient heat dissipation.
The graphical display inform the driver about They are exchangeable and are made
for example engine oil temperature without a flame edge. D12D has
improved internal cooling for the cy-
linder head and for the oil system.
Inside the engine, all the calibrated
cooling channels co-operate in order
Electronically controlled fuel to bring about a balanced cooling pro-
injection gives low emission cess. The cooling flow is distributed Designed for high reliability and
values. between the lower and upper cooling long
casing and the cylinder head. service life
In order to allow operating data to be
registered, the engine is fitted with The engine is equipped with piston The D12D engine is built for a long
several sensor functions. cooling. The upper section of the pis- and reliable service life. It is provided
The engine control module compares ton and the piston ring zone are cooled with a common cylinder head with a
current readings with stored data, and efficiently as oil is sprayed underneath steel gasket and with induction-
regulates the amount of fuel and the the piston. Cooling is ensured even at hardened camshaft and crankshaft
injection timing. low idle. induction. The camshaft is equipped
The entire combustion process is pre- with a vibration damper to reduce
cision-controlled in all operating sound output.
situations, resulting in low fuel The heavy-duty cylinder block is also
consumption and a minimum of noise fitted with reinforcement ribs of
and exhaust emissions. nodular iron, a design feature that also
The D12D500 meets EU regulations offers lower noise levels and less vi-
regarding exhaust emissions according bration. An engine-mounted fuel fil-
to the requirements and additional ter with water separator is available as
requirements for Euro 3. option.