1. Cooling mu

2. Sea water cools the coolants
In a Diesel engine
the pistons and the cylinders
must be cooled by coolants.
Sea water cools the coolants
Fresh water,
oil,
air.
sound

3. COOLING THE PISTON piston rod The piston rod is hollow.
When the piston goes
up and down,
the coolant (oil)
enters through the piston rod bore and leaves through the
inside return line.
piston rod
Piston-rod bore
Inside return line

4. COOLING THE PISTON The piston is cooled by oil.
The advantages of oil as
a coolant are:
. it reduces noise;
. it purifies;
. it forms a seal;
. it lubricates;
. it is anti-corrosive;
. it has a higher resistance
to heat.

5. COOLING THE CYLINDER The cylinder is cooled by injecting the
coolant between the
cylinder liner and
the cylinder jacket.
The most common coolant
is fresh water. S
Liner
Jacket

6. COOLING THE COOLANTS
The cooling medium must be cooled by sea water, which is led into the ship
through sea-chests (A).
AIRCO FW
STEAM FW A FW A

7. HEAT EXCHANGERS
In a heat exchanger the hot coolant is cooled by sea water.
SOUND

8. International Maritime Language Programme – IMLP
C P.C. van Kluijven
The IMLP is an IMO-standard.
The
International Maritime Language Programme – IMLP