All About Engines
Forfatter: Edward Cressy
År: 1918
Forlag: Cassell and Company, LTD
Sted: London, New York, Toronto and Melbourne
Sider: 352
UDK: 621 1
With a coloured Frontispiece, and 182 halftone Illustrations and Diagrams.
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The Petrol Motor
217
provided with a well in the lower portion in which
the lubricating oil collects, and whence it is pumped
to other parts of the engine. Below each crank is an
oil trough.
end enters
this oil when
the crank is
at its lowest
point and
lub r icates
the pistons
by “ splash-
ingNo
lubricating
oil should be
allowed to
enter the
cylinder it-
self if it can
be avoided.
Under the
high temper-
ature of the
explosion it
would char,
leaving a
deposit of
A small dipper on the connecting rod
Fig. 124.—Transverse section of a 24-30 h.-p. engine
A, Carburettor; B, Exhaust valve : C, Admission valve : D, Magneto
E, Sparking plug ; F, Pipe for cooling water ; G, Gani shaft
soot on the ends of the pistons and the inside of
the cylinders, and if a particle of this remained
red hot from a previous explosion it would cause
pre-ignition. Almost invariably a small amount creeps