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What is air-assisted fuel injection system?

What is air-assisted fuel injection system?

air-assisted injection system comprises two main components: a fuel metering injector, similar to a port fuel injector, and an air injector, which delivers a mixture of metered fuel and air into the combustion chamber ( figure 2a). The fuel injector delivers fuel into a reservoir that is internal to the injector. …

What is the advantage of an air injection system?

It provides better atomization and distribution of fuel. As the combustion is more complete, the BMEP is higher than with other types of injection systems. It allows to use inferior fuels.

What is port fuel injected?

Port fuel injection has been around since the 1980s and means that fuel is delivered to the engine directly into the intake manifold or cylinder head. Fuel is sprayed on the valve, which then uses the heat from the valve to further atomize the fuel.

What are the four basic types of fuel injection?

The fuel injection types used in newer cars include four basic types:

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

What is fi system in bike?

Fuel Injection (FI): How Does It Work Fuel injection system comprises a complex set of electronic components and sensors. The system depends on a fuel pump to control the flow of fuel to the combustion chamber. This fuel pump is located inside the fuel tank of the bike.

Which is better carburetor or fuel injection motorcycle?

Old bikers would also stick to their carbureted option, as they are simpler to maintain and repair. However, while fuel injection generally increases the cost of the bike, it also provides much better cold starting, better throttle response, better fuel efficiency, less maintenance.

Why the air injection system is not used now a days?

Air Injection System This type of fuel injection system is used very less nowadays because of the bulky design of the engine. Since it needs an additional mechanical compressor system.

What is the disadvantage of petrol injection?

Disadvantages of Petrol Injection System: It required more maintenance. It produces more sound. It may cause wear. There is an additional requirement of the nozzle, for every cylinder.

Is Port injection good?

Port injection provides a better, more stable air/fuel mixture at lower engine speeds, which results in smoother operation upon startup. At higher rpm, direct injection provides a greater cooling effect, allowing for more power and less chance of knock.

Which cars have port injections?

Examples include:

  • Redesigned Ford 3.5L EcoBoost and V6 engines.
  • Lexus 2GR-FSE engines.
  • Audi’s VW Group 3.0-liter V-6 and 5.2-liter V-10 engines.
  • Toyota’s 2.0-liter in-line four-cylinder engines built by Subaru, and D4-S 3.5-liter V6 and 5.0-liter V-8 engines.

What are the 3 types of injectors?

Your vehicle can be equipped with one of the three most common injection systems on the market. GDI (Direct injection), SDI (Semi-direct injection) or TBI (Throttle body injection).