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Common-rail direct fuel injection is a modern variant of direct injection system for diesel engines. It features a high-pressure (over 1,000 bar/15,000 psi) fuel rail feeding individual solenoid valves, as opposed to low-pressure fuel pump feeding Unit Injectors (Pumpe-Düse or pump nozzles) or high-pressure fuel line to mechanical valves controlled by cams on the camshaft. Third-generation common-rail diesels now feature piezoelectric injectors for increased precision, with fuel pressures up to 1,800 bars (26,000 psi), although a new version of Delphi’s proven diesel common rail system will allow compliance with Euro 6 and US Tier 2 Bin 5 without costly next-generation injection technologies.
Common-rail direct fuel injection is a modern variant of direct injection system for diesel engines. It features a high-pressure (over 1,000 bar/15,000 psi) fuel rail feeding individual solenoid valves, as opposed to low-pressure fuel pump feeding Unit Injectors (Pumpe-Düse or pump nozzles) or high-pressure fuel line to mechanical valves controlled by cams on the camshaft. Third-generation common-rail diesels now feature piezoelectric injectors for increased precision, with fuel pressures up to 1,800 bars (26,000 psi), although a new version of Delphi’s proven diesel common rail system will allow compliance with Euro 6 and US Tier 2 Bin 5 without costly next-generation injection technologies.
Common-rail direct fuel injection is a modern variant of direct injection system for diesel engines. It features a high-pressure (over 1,000 bar/15,000 psi) fuel rail feeding individual solenoid valves, as opposed to low-pressure fuel pump feeding Unit Injectors (Pumpe-Düse or pump nozzles) or high-pressure fuel line to mechanical valves controlled by cams on the camshaft. Third-generation common-rail diesels now feature piezoelectric injectors for increased precision, with fuel pressures up to 1,800 bars (26,000 psi), although a new version of Delphi’s proven diesel common rail system will allow compliance with Euro 6 and US Tier 2 Bin 5 without costly next-generation injection technologies.
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