Technical information
12
Engine
The E 2842 E is a liquid-cooled 12-cylinder Otto-Cycle-Gas engine.
The
cylinders are on a 90° V pattern.
Combustion system
The engine uses the Otto-Cycle-gas combustion system developed by MAN.
The outstanding design features of this system are a truncated combustion chamber
located at the centre of the piston crown and the special shape of the intake port in the
cylinder head (swirl). This port is formed to impart to the air/gas mixture entering the
cylinder during the induction stroke a vigorous rotary movement about the axis of the
cylinder. This swirling motion ensures intimate mixing of gas and air for well timed com-
plete combustion.
Engine block
The cylinder block is a single piece of alloy cast iron. To increase its stiffness, it is
designed with skirts extending to a level below the crankshaft centerline. The engine has
replaceable wet cylinder liners and individual cylinder heads.
Piston / Conrod / Crank assembly
The forged crankshaft has screwed-on counterweights. Radial seals with replaceable
wearing rings are provided to seal the crankcase penetrations.
The connecting rods are diagonally split and can be removed through the top of the cylin-
ders together with the pistons. Big-end bearings and main bearings are of the steel-
backed lead bronze ready-to-fit type.
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