As high pressure common rail system with the above advantages, diesel engine research institutions at home and abroad have invested a lot of energy to study it. More mature system: Germany ROBERT BOSCH company's CR system, Japan's Denso Corp. ECD-U2 system, the Italian FIAT Group unijet system, the United Kingdom DELPHI DIESEL SYSTEMS companies LDCR systems.

Second, high pressure common rail fuel injection system on the main components

Figure 1 is a high pressure common rail fuel injection system, control the basic diagram. It mainly by the electronic control unit, high-pressure pumps, the common rail, electronically controlled fuel injection sensors, as well as various components. Low pressure fuel pump fuel importation of high-pressure pumps, high pressure pump pressurized fuel oil into high-voltage rail, high pressure oil track from the pressure of ECU track under the oil pressure sensor tracks the oil pressure and the need for regulation, high pressure oil in orbit After high-pressure fuel pipeline, according to the operational status of machinery, electronic control unit from the default map plans in the identification of suitable injection timing and injection duration of the electro-hydraulic control of the electronic fuel injector will be injected into the cylinder.