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Introduction Of Petrol Injection System

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Introduction of petrol injection
The Fuel injection is a system for filling fuel into an internal combustion engine (cylinder). It has become the primary fuel delivery system used in automotive engines, it replaced by carburettors in 1980s. A variety of injection systems have existed since the earliest usage of the internal combustion engine.
There are two type of injection system which used in petrol engine
1st multipoint injection system and
2nd is single point injection system
Herbert Akroyd Stuart developed the first device with a design similar to modern fuel injection

Task 1
Explain the operation of Multi point and single point petrol injection systems used on modern fuel injected engines.

In this task I’ll explain about both type injection systems.

Multipoint injection system In this system petrol engine has injector apart of each cylinder. Means if engine has 3 cylinders then there will be three injectors, one injector on each cylinder. It locates in intake manifold, and when engine piston moves from TDC (top dead centre) to BDC (bottom dead centre) then create sucks and open intake valve by camshaft and entered air and that fuel which injected by injector after taking from fuel tank with help of pressure pump via fuel filter (this component is also necessary in fuel supply system because there is more dust in fuel tank which comes in fuel filling time and it can injure piston ring and block) for blasting with help spark plug. In this system

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