Basic Structure of Common rail Fuel Injection System

The Common rail fuel injection system includes fuel tank, fuel transfer pump, fuel filter, oil-water separator, high and low pressure fuel pipes, high pressure fuel pump, fuel common rail assembly with pressure regulating valve, high-speed solenoid valve injector, preheating device, various sensors, electronic control unit and other devices.

The low-pressure fuel supply part of the Common rail fuel injection system includes: fuel tank (with filter screen, oil level display, fuel volume alarm), fuel transfer pump, fuel filter, low-pressure fuel pipe, return pipe, etc; The high-pressure fuel supply part of the common rail injection system includes: a high-pressure oil pump with a pressure regulating valve, a fuel common rail component (with a common rail pressure sensor), and a solenoid valve injector.