Main components of electronically controlled Common rail system

The electronically controlled Common rail fuel system is mainly composed of fuel tank, fuel transfer pump, fuel filter, high-pressure fuel pump, pressure control valve, Common rail pipe, pressure limiting valve, flow limiter, fuel injector, etc

Distribution position of main components of electronically controlled Common rail fuel system

1. Oil delivery pump

〔1〕 Function - delivering fuel from the fuel tank to the high-pressure oil pump

〔2〕 Type - mechanical and electric. In electronically controlled common rail diesel engines, roller type electric fuel transfer pumps are generally used.

2. Fuel filter

〔1〕 Function - to filter out impurities in the fuel and maintain the cleanliness of components such as oil pumps and injectors; Reduce the corrosion of fuel supply system components caused by water in the fuel.

〔2〕 Type - Paper cartridge fuel filter with oil water separator. Fuel filter [with oil water separator]

3. High pressure oil pump

〔1〕 Function - supply high-pressure fuel to Common rail pipe.

〔2〕 Installation position one to one is installed on the engine body, transmitted by the engine through couplings, gears, chains, or toothed belts.

〔3〕 Composition 1- mainly composed of pump body, shut-off valve, safety valve, pressure controller and other components.