How does Fuel Injection work?

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Fuel Injection Work:

An electronic fuel injection system consists of an array of fuel injectors, an oxygen sensor, and an electric fuel pump with a pressure regulator. A computer takes control of what proportion of fuel is to be delivered to the cylinders, which is how fuel-injected vehicles perform better and return better fuel mileage.

Although they serve an identical purpose, a fuel injection system works very differently than a carburetor. It uses a pump to deliver fuel to the engine. There no mixing of air and fuel or achieving the optimal air-fuel ratio because the air and therefore the fuel entering the system is electronically regulated by an onboard computer which stores a “map” of the optimal settings. There’s a fuel injector at each of the cylinders spraying fuel at the manifold. The fuel entering the engine is atomized and vaporized for better ignition.

 

Fuel Injection: a quick History

The first fuel injection system was developed by Herbert Akroyd Stuart. He used a Jerk Pump which pressurized the fuel at the top. His invention was later commercialized in diesel engines by Bosch and Cummins. The fuel injection system has always been utilized in diesel engines by choice and was standard fitment on all diesel vehicles by the mid-1920s.

But, it absolutely was the Hasselman engine, invented by Jonas Hasselman in 1925, that the primary modern fuel injection system found use during a petrol engine.

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