aamt 2203 q1
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9 Terms
Induction System
The system that brings in air from outside, mixes it with fuel, and delivers the fuel-air mixture to the cylinder for combustion.
Carburetor System
A type of induction system that mixes fuel and air in the carburetor before this mixture enters the intake manifold.
Float-Type Carburetor
The most common type of carburetor, featuring systems for idling, accelerating, mixture control, idle cutoff, and power enrichment.
Disadvantages of Float-Type Carburetors
They do not function well during abrupt maneuvers.
Low-pressure fuel discharge causes incomplete vaporization and difficulty in some supercharged systems.
It has an icing tendency.
Pressure-Type Carburetor
A carburetor that discharges fuel into the airstream at a pressure above atmospheric pressure.
Carburetor Icing
Occurs due to fuel vaporization and a decrease in air pressure, resulting in a sharp temperature drop in the carburetor.
Carburetor Heat System
A system used in engines with float-type carburetors to combat the effects of carburetor icing.
Fuel Injection System
A system where fuel is injected directly into the cylinders or just ahead of the intake valve, using an air intake similar to that of a carburetor system.
Basic Components of Fuel Injection Systems
Engine-Driven Fuel Pump, Fuel-Air Control Unit, Fuel Manifold, Discharge Nozzle, Auxiliary Fuel Pump, and Fuel Pressure/Flow Indicator.