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Difficulty: EasyFuel and Air Intake Systems

Automotive engines depend on fundamental intake and fuel delivery parts to maintain reliable operation. Match each fuel and air intake component to its primary function in the engine.

  • Air filterTraps airborne abrasive particles and dust before air enters the intake manifold
  • Fuel injectorSprays an atomized mist of pressurized fuel into the intake stream or cylinder
  • Throttle valveRegulates the volume of incoming airflow based on driver accelerator input
  • Fuel pumpTransfers fuel under pressure from the storage tank to the engine delivery rail

Answer

Air filter matches with trapping airborne abrasive particles; Fuel injector matches with spraying an atomized mist of pressurized fuel; Throttle valve matches with regulating incoming airflow volume; Fuel pump matches with transferring fuel under pressure from the storage tank.
Each item corresponds to a specific functional role: the air filter purifies incoming air, the throttle valve controls intake airflow volume, the fuel pump supplies pressurized fuel from the tank, and the fuel injector atomizes and sprays fuel for combustion.

Step-by-Step Solution

1
Identify the primary role of the air filter in the intake tract.
The air filter removes particulate contamination from outside air before it reaches the cylinders.
Protecting internal surfaces from abrasive dirt is essential for engine longevity.
2
Identify the primary role of the fuel injector.
The fuel injector meters and atomizes fuel into tiny droplets for combustion.
Atomization ensures thorough mixing with intake air for rapid, complete burning.
3
Identify the primary role of the throttle valve.
The throttle valve controls the total volume of air admitted to the engine.
Engine power output in gasoline engines is modulated by controlling air induction.
4
Identify the primary role of the fuel pump.
The fuel pump creates the hydraulic flow needed to move fuel from the tank to the fuel rail.
Injectors require steady fuel supply pressure to deliver accurate fuel pulses.

Key Concept

Operational roles and distinct functions of primary fuel delivery and air intake components
Estimated Time:45s
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Topics

Fuel and Air Intake Systems

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