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 c. POWER FUEL FEED SYSTEM:
create a pressure at the tip of the
nozzle (14) slightly less than the
With the throttle valve (6) in slow or
pressure in the fuel bowl chamber (9)
just off slow idle position, fuel rises
and the accelerating well (16). Fuel,
up through the nozzle (14) and out the
therefore, feeds from the fuel bowl (1)
nozzle air bleeds (15) to fill the
through the opening between the power
accelerating well (16) to approximately
(load) adjusting needle (18) and the
the height of the fuel level in the
power adjusting needle seat (19),
fuel bowl (1).
through the power jet (20) and out the
nozzle (14) to be discharged into the
is increased from
At the
As the engine speed
air stream at the venturi (17).
on the air flow
the slow idle posit
s stored in
same time, t h e f u e l t h a t
(17) is gradually
through the venturi
the accelerating well (16) is also
he idle system
increased, and, as
forced through the nozzle air bleeds
the
velocity
through
begins to diminish,
(15) into the nozzle (14).
high enough to
the venturi (17) is
1-14
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