1. Metering of fuel: The fuel injection pump measures and regulates the amount of fuel required by the engine based on various factors such as engine speed, load, and operating conditions. It ensures that the correct amount of fuel is delivered to achieve optimum performance, fuel economy, and emission control.
2. Pressurization: The fuel injection pump generates high pressure to inject the fuel into the engine's cylinders. The high pressure helps atomize the fuel, resulting in better fuel mixing with air and improved combustion efficiency.
3. Timing of fuel delivery: Precise timing of fuel injection is crucial for efficient engine operation. The fuel injection pump synchronises with the engine's camshaft or crankshaft to deliver fuel at the appropriate moment during the engine cycle, ensuring optimum fuel burn and reduced emissions.
4. Fuel distribution: The fuel injection pump distributes fuel evenly to each engine cylinder. It controls the duration, sequence, and amount of fuel delivered to each injector to ensure proper fuel distribution among all cylinders.
Overall, the fuel injection pump plays a vital role in diesel engines by providing precise metering, pressurization, timing, and distribution of fuel to the cylinders. This contributes to efficient combustion, enhanced performance, improved fuel economy, reduced emissions, and smooth engine operation.
