Table of Contents
Advertisement
-
FUEL
ANO
LUBRICATION
SVSHM
4-8
MAIN
SYSTEM
As
throttle valve
::I)
is opened,
engino
speed
rises,
and
this
increases oe9ative
pressure
in the v1Jnlurl
@.
Consequ1.m
1ly
the
p iMon
valve
·~2)
moves
UJlWArd.
Meanwhile,
the
fue
l
in
float chamber
J!
is
metered by
main j et
(4.,1,
and
the
me
tered
fuel
enters
needle
jet
{$,',
in which
it
niixos
w
ith
the
air ar1mitted through
moio
air
jet
(6::
t
o
fo
rm
a
u
urnu!slon.
lhe
emulsified
fuel
then
pas-
s es thrOufJh the
clearance
between
ne('l<lle
iet
(~)
a
nd
je
t
n
eudla
(J),
and
is
d
ischarged
into
1h~
veoturi
-
~
,
in
which
it
mee ts main air
su
eam
being
drawn
by
the e ngin~. Mixtur(I
1
>1opo11ioning
is accomplished
in
n
ao<IIO
jet
~~\
the clearance
through
which thP.
emulsified
fu1a1I
must
Uow
in
lilrya o
r small.
ctepe11ding
ultimately
o
n
throttl0
position
.
7
------=----
-------....
""
- - - -
-
-
~ - - -
-
-
- -
-
- -
11:$
~
A
IR
♦-
,;:Qif
FUEL:AIR
MIXTURE
. . . . . . .
FUEL
Advertisement
Chapters
Table of Contents
