The air induction
valve,
the exhaust valve
and in some
cases the
starting-air valve
are opened and
closed by the
rocking lever. 1

….. because

The rotating
camshaft (1) is
actuated by the
pushrod.

1

2

….. because

The campeak
(1)
actuates the
pushrod (2).

2

1

3

The rocking
lever
(or rocker arm)
is actuated by
the pushrod.

4

1) Valve
spring;
2) Valve stem;
3) Valve seat;
4) Valve disc.

1

2

3

4

5

….. because

The spaces in the
cylinder head and
the space
between
the cylinder liner
and cylinder
jacket are cooled
by fresh water,
sea water, oil or
air.

6

….. because

C P.C. van Kluijven

SHIPPING AND TRANSPORT COLLEGE ROTTERDAM