Clinton C-6314 Instrukcja obsługi i instrukcja obsługi - Strona 3
Przeglądaj online lub pobierz pdf Instrukcja obsługi i instrukcja obsługi dla Silnik Clinton C-6314. Clinton C-6314 16 stron. 2 cycle engine
Drukuj stronęFACTS ABOUT YOUR NEW CLINTON 2 CYCLE ENGINE
TYPES OF ENGINES
There are two basic types of small air
cooled gasoline engines, those operating
on four stroke cycle (commonly referred
to as four cycle) and those operating on
a two stroke cycle
(commonly
referred to
as two cycle)
.
The principal differenc
e
between the above types is the
number
of
power strokes or the number of times the
engine fires for each revolution of th
e
crankshaft.
The four cycle engine has a
power stroke or "fires"
every other
com
plete revolution of the crankshaft, while
the two cycle has a power strok
e
on
every
complete revolu
tion
of the
cranksha ft.
An
other basic difference is in the
method
of
lubrication.
The four cycle engine retai
ns
a reservoir of oil in the
crankcase,
and dis
tributes this oil
throughout
the moving
parts 'of the engine by means
of
a pump
or dip finger. The two cycle engine is lu
br
icated
solely by the correc
t
amount of
SAE #30 Motor oil (Mineral) mixed
with the
Gasoline.
The gasoline and oil
mixture is compressed and forced
through
Out the crankcase and
combustion
area of
the engine. Thus the oil content of the
fuel mixture lubricates the moving parts
of the engine. Your Clinton
Engin e
is the
two cycle type, and therefore, the discus
sion in this manual will
pertain only
to
this type of
engine.
THE
TWO CYCLE PRINCIPLE
In your Clinton two cycle engine, th
e
piston acts as both an intake and exhaus
t
valve- Assume that the cylinder is filled
with a mixture of air and
fuel,
and the
piston
is
at the bottom of
its
stroke. As
the crankshaft revolves the piston rises,
and
the
mixture of air and fuel is then
compressed in the
combust ion cham ber.
When
the piston is near
its
highes
t
point ,
GENERAL VIEW
th
e
'comp
ressed mixture is then ignited,
which
forces the piston to
descend
and
gives
the
power
stroke.
During this up
ward stroke of the piston a vaccum is
created in
the crankcase which draws a
fresh
mix
tur e of fuel and
air through the
reed
valve
into
the crankcase (the crank
case being an
air
tight casting containing
the crankshaft and connecting rod assern
blies.)
With the downward stroke of the
piston, the charge is compressed
in
the
crankcase
.
As the piston approaches the
bottom of its stroke, its movement un
covers the exhaust port, through which
the bur nt
gases
escape from the combus
tion chamber, which immediately causes
the
press
ure within
the chamber to
fall.
As
the p
iston
continues
its downward
motion, it
then
uncovers an inlet port
and
a
fresh charge
of air
and
fuel forces
its
way
into
the combustion chamber from
the
crankcase.
This incoming fresh charge
of
fuel
pushes the
remainder
of the burn t
gases
out
through the exhaust pOrt. A pro
jectio
n
on th
e
top of the piston deflects
the fresh charge and prevents it from
passing directly
across
the
cylinder
and
out th
e exhaust port.
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