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What is the difference between a carburetor and a fuel injected system?

- Feb 09, 2019 -

What is the difference between a carburetor and a fuel injected system?

carburetor化油器

Carburetor:

  • The air and fuel(petrol) enters the carburetor through separate ports assigned for them.

  • If undisturbed, they get mixed inside the carburetor at stoichiometric ratio *We can get rich mixture by opening the choke valve.

  • After mixing, the air-fuel mixture enters the cylinder through inlet valve during suction stroke.

Fuel injector:

  • The fuel injection system consists of a fuel injector (nozzle) whose operation is controlled by electric circuits through sensors. * The Electronic Control Unit (ECU) is used for the control.

  • The air from the air filter enters the cylinder through inlet valve during suction stroke.

  • The fuel injection begins at the end of compression stroke.

  • The fuel is sprayed like moist.

  • Due to atomization, the air and fuel get mixed inside the cylinder.

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Quote from:www.quora.com

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