What is the difference between direct injection and hybrid injection in cars?

[DiGiselle]

The differences between them lie in their different principles, advantages, and functions. Here are the specific details: Different principles: The hybrid injection engine combines multi-point electronic fuel injection and direct injection, resulting in the hybrid injection technology. It is a fuel supply system composed of both direct injection and manifold injection. Direct injection technology is a relatively new engine technology that has developed in recent years. It involves moving the fuel injector from the intake manifold to the inside of the cylinder, where fuel is directly injected into the combustion chamber to mix with air, enabling smooth and efficient combustion. Different advantages: The hybrid injection engine can improve work efficiency and also avoids the emission issues caused by excess oxygen in direct injection engines under low-load conditions. During combustion, direct injection technology creates an air layer that insulates heat, reducing heat transfer to the cylinder walls and minimizing heat loss, thereby enhancing the engine's thermal efficiency. Different functions: The purpose of hybrid injection is to combine the advantages of manifold injection and direct injection technologies to address the problems associated with traditional direct injection. Direct injection technology is quite mature; the key feature of a direct injection engine is the immediate injection of fuel at high pressure into the combustion chamber of the cylinder. The engine can automatically adjust the timing of valve opening while also regulating the amount of air entering the cylinder.