What are the functional requirements of fuel injection system?

What are the functions of fuel injection system?

Abstract: The purpose of the fuel injection system is to deliver fuel into the engine cylinders, while precisely controlling the injection timing, fuel atomization, and other parameters. The main types of injection systems include pump-line-nozzle, unit injector, and common rail.

What are the functions of fuel injection system for CI engines?

The function of a fuel injection system is to meter the appropriate quantity of fuel for the given engine speed and load to each cylinder, each cycle, and inject that fuel at the appropriate time in the cycle at the desired rate with the spray configuration required for the particular combustion chamber employed.

What are the five functions of the fuel injection equipment fitted to a diesel engine?

Function of Diesel Fuel Injection

  • fuel injection pump – pressurises fuel to high pressure.
  • high-pressure pipe – sends fuel to the injection nozzle.
  • injection nozzle – injects the fuel into the cylinder.
  • feed pump – sucks fuel from the fuel tank.
  • fuel filter – filtrates the fuel.
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What are the components of a fuel injection system?

Abstract: The fuel injection system can be divided into low-pressure and high-pressure sides. The low-pressure components include the fuel tank, fuel supply pump and fuel filter. The high-pressure side components include a high pressure pump, accumulator, fuel injector and fuel injector nozzle.

What are the two basic types of fuel injection systems?

There are two basic types of fuel injection systems used on passenger cars and light trucks, multiport fuel injection and throttle body fuel injection.

What are three types of fuel injection systems?

The three major types of fuel injection are known as throttle body injection, multiport injection, and direct injection.

What are the types of fuel injection system?

What Are The Different Types of Fuel Injection?

  • Single-point or throttle body injection.
  • Port or multipoint fuel injection.
  • Sequential fuel injection.
  • Direct injection.


What are the basic requirements of fuel injection in CI engine?

Functional requirements of a fuel injection system

Correct fuel injection timing. Full control over rate of fuel injection. Proper atomisation of the fuel. Proper spray pattern to ensure mixing of air and fuel.

What is fuel injection timing?

Injection timing, also called spill timing, is the moment when diesel fuel enters the cylinder during the combustion phase. … The timing of the pump determines when it will inject fuel into the cylinder as the piston reaches the BTDC point.

In which engine injector is used?

Petrol-engined cars use indirect fuel injection. A fuel pump sends the petrol to the engine bay, and it is then injected into the inlet manifold by an injector. There is either a separate injector for each cylinder or one or two injectors into the inlet manifold.

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What if petrol is used in diesel engine?

Putting petrol in a diesel car can cause serious damage to the fuel injection system and engine. … When petrol is added to diesel it reduces its lubrication properties, which can damage the fuel pump through metal-to-metal contact and create metal particles causing significant damage to the rest of the fuel system.

Which is not function of fuel injection system?

A nozzle is used to atomize the fuel and break up into small particles. 9. Which of the following is not the function of the fuel injection system? Explanation: The functions of the fuel injection system are to filter the fuel, to time the fuel injection, to break up the fuel into small particles.

What are the four main components of the Continental fuel injection system?

The Continental fuel-injection system injects fuel into the intake valve port in each cylinder head. [Figure 2-39] The system consists of a fuel injector pump, a control unit, a fuel manifold, and a fuel discharge nozzle. It is a continuous-flow type, which controls fuel flow to match engine airflow.