Common Rail Fuel System






Common Rail Fuel System

With a common rail fuel system, an extremely high fuel pressure is created in the supply pump and this is fed directly to the common rail which is located on the engine and is connected to the injectors.
 Compared to previous diesel engines, the Common-rail system supplies highly pressurized fuel injection even at low engine speeds. As the highly pressurized fuel exits the injector’s very small holes (which are about the same diameter as a human hair), the fuel is sent to the combustion chamber as an extremely fine spray (particle of fuel is small).

Fuel Injection

Fuel injection is controlled electronically by an ECU (Electrical control unit).

The ECU detects the driving conditions through the signals from various sensors and calculates the correct injection volume and timing. Then, the ECU sends a signal to the injector to operate for precise and accurate control in the same way electronic fuel injection functions on petrol engines.


Previous Post
First

About Author