When I was younger, I asked myself why cars needed fuels when they had battery 🤣🤣🤣, that is a true story. Later I learnt that the batteries are for all the electrical parts like headlamps and so on.

Hello Everyone is @kelismart here going to explain to little kelismart what fuel does.

First thing to remember is cycle the engine completes to keep your vehicle going. The; INTAKE (SUCK), COMPRESS (SQUEEZE), COMBUST (BLAST), EXHAUST (BLOW). The intake is when air and fuel (petroleum or diesel) is taken into the cylinder through the intake valve, the piston moves upwards and compresses the mixture, the spark plug release spark which reaches the cylinder combust the mixture and the exhaust valve takes it away.

Our point of view is the intake. Different automakers have different ways (3 actually) the inject fuel to the cylinder.

Direct Fuel Injection
Indirect Fuel Injection.
Dual Fuel Injection

Let me Explain

Direct Fuel Injection (DFI)

Fuel is injected directly into the combustion chamber, allowing for precise control over fuel mixture.

• Pros:

  • Improved fuel efficiency (up to 20% better than indirect injection)
  • Increased power output (up to 10% more power)
  • Reduced emissions
  • Better engine responsiveness

• Cons:

  • More complex design
  • Higher production costs
  • Potential for carbon buildup on intake valves

• Examples: Most modern engines, including gasoline and diesel engines.

Indirect Fuel Injection (IFI)

Fuel is injected into the intake manifold, where it's mixed with air before entering the combustion chamber.

• Pros:

  • Simpler design
  • Lower production costs
  • Easier maintenance

• Cons:

  • Less fuel-efficient (compared to DFI)
  • Lower power output (compared to DFI)
  • Potential for fuel wash (fuel washing cylinder walls, causing oil dilution)

• Examples: Older engines, some small engines, and certain motorcycles.

Key differences

• DFI injects fuel directly into the combustion chamber, while IFI injects fuel into the intake manifold.
• DFI offers better fuel efficiency, power output, and emissions control, but is more complex and expensive.

Modern engines often use DFI for its benefits, but IFI is still used in some applications due to its simplicity and lower cost.

There is one more, the combination of both of the already explained ones.

Dual Fuel Injection System

A dual fuel injection system uses two different types of fuel, typically gasoline and an alternative fuel like compressed natural gas (CNG), hydrogen, or ethanol, to power an internal combustion engine.

Pros

• Improved efficiency: Optimizes fuel efficiency, reducing operating costs
• Reduced emissions: Alternative fuels can lower greenhouse gas emissions
• Increased flexibility: Vehicles can operate on either fuel, reducing dependence on a single fuel source
• Lower fuel costs: Alternative fuels can be more cost-effective

Cons

• Higher upfront costs: Dual fuel systems are more complex and expensive to install
• Limited infrastructure: Alternative fueling stations may be scarce
• Increased complexity: More components and systems to maintain
• Potential performance issues: Fuel switching can affect engine performance

Applications

• Vehicles: Cars, trucks, buses, and other vehicles can be equipped with dual fuel systems
• Generators: Dual fuel generators provide backup power using alternative fuels
• Industrial equipment: Dual fuel systems can power industrial equipment, like forklifts and pumps

That's a wrap in Fuel Injection in vehicles
THANKS FOR YOUR TIME.