1. Petrol Engines: In petrol engines, MPFI systems precisely control the delivery of petrol to each cylinder. Each cylinder is equipped with its own fuel injector mounted strategically near the intake valve. The injectors receive electrical signals from the engine control unit (ECU), which determines the precise timing and quantity of fuel injection based on various engine operating parameters.
2. Diesel Engines: Diesel engines have traditionally utilized different fuel injection systems due to the higher pressures and different fuel characteristics of diesel fuel. Common rail fuel injection systems are widely used in modern diesel engines, where a high-pressure pump maintains a constant fuel pressure, and solenoid-operated injectors control the precise injection of diesel into the cylinders.
However, some diesel engines may also employ MPFI systems. In diesel MPFI systems, the injectors are mechanically actuated by the engine's camshaft instead of being electronically controlled like in petrol engines. This configuration allows for the precise timing of fuel injection but does not offer the same level of control over the injection process as electronic fuel injection systems.
Overall, MPFI systems can be used in both petrol and diesel engines, but the specific design and implementation may vary depending on the engine type and performance requirements.
