
CARBURETOR
1. Engine Impulse: Actuates Fuel Pump diaphragm
10. Atmospheric Vent: Allows air pressure against the
alternating
pressure-vacuum
pulses.
Metering
Diaphragm.
2. Fuel Pump Diaphgram: Fluctuates in response to
11. Metering Diaphragm: Drawn up by vacuum while
engine impulse. Transfers fuel through Fuel Pump Valves.
engine is running to activiate Metering Lever.
3. Fuel Inlet: Fuel drawn from tank
12. Metering Lever: Lifts Inlet Needle Valve off seat.
4. Inlet Valve: Responds to Fuel Pump Diaphragm.
13. Metering Lever Spring: Transmits force to Metering
Opens during vacuum pulse. Closes during pressure pulse.
Lever. Closes Inlet Valve as Metering Chamber fills.
5. Outlet Valve: Closes during vacuum pulse. Opens
14. Metering Chamber: Fuel reservoir.
during pressure pulse.
15. Nozzle Well: Fuel is drawn in from Metering
6. Filter Screen: Filter fuel on route to Metering
Chamber at high speed.
Chamber.
16. Nozzle: Increases fuel discharge at high speed.
7. Inlet Needle Valve: Lifts off seat to allow fuel entry
17. Venturi: Increases air velocity at Nozzle, creating a
into Metering Chamber.
suction to draw fuel into Throttle Bore.
8. Butterfly Valve: Shuts off air flow stopping engine.
18. Priming Pump: Used to supply fuel to antecham-
9. Fuel Needle: Adjusts fuel richness.
ber for staring.
24
Содержание 2610E
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Страница 42: ...42 1 3 2 4 5 6 7 BATTERY SIDE VIEW OF MACHINE FIGURE 15 ...
Страница 44: ...10 10 1 2 3 4 7 8 9 44 10 10 5 6 TANK SIDE VIEW OF MACHINE FIGURE 16 ...
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