Air Injection in IC Engines

Air injection in IC engines refers to the process of injecting both liquid fuel and air into the combustion chamber of an engine. This process helps to improve the combustion efficiency of the engine, resulting in better fuel economy and reduced emissions. Let us understand this concept in detail.

Benefits of Air Injection in IC Engines

1. Improved Combustion Efficiency: The air injection system helps to mix the fuel and air in the combustion chamber in the right proportion, leading to better combustion efficiency. This results in better fuel economy and reduced emissions.

2. Reduced Emissions: The improved combustion efficiency leads to a reduction in emissions such as NOx and particulate matter. This makes the engine more environment-friendly.

3. Better Performance: Air injection can also improve the performance of the engine by increasing the power output and torque.

Types of Air Injection Systems

1. Direct Injection: In this system, air and fuel are injected separately into the combustion chamber. This system is commonly used in diesel engines.

2. Indirect Injection: In this system, the air and fuel are mixed outside the combustion chamber and then injected into the chamber. This system is commonly used in gasoline engines.

Conclusion

Air injection is an important process in IC engines that helps to improve combustion efficiency, reduce emissions, and improve overall engine performance. It is important to choose the right type of air injection system based on the engine type and application.

Air injection in IC engines is the Liquid fuel and air is to be injected into the cylinder so and burn the fuel and air ratio into cylinder.in option Only air is not be burn and only liquid fuel is not to be burn in cylinder so that option C is correct.