Medium Duty Diesel Common Rail (DCR) System - Delphi

Medium Duty
Diesel Common Rail (DCR) System
DCR Advantages
• Compact design—The compact design of the injector outline
enables the DCR system to be used on two or four valves-percylinder
engines.
• Modular system—With one electronically driven injector per
engine cylinder, the system is modular and can be used on
three to eight cylinder engines.
• Low drive torque—As the pumping pressure to the rail is not
phased with the injection, the DCR system requires a low drive
torque from the engine.
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• Independent injection pressure—The injection pressure is independent
of the engine speed and load, enabling high pressures at low speed
if required.
• Multi injections per firing cycle—Injection sequences which include
periods both pre- and post-main injection can be utilized to reduce
emissions, particularly NO x , enabling the system to meet the stringent
emission levels required by Euro-3 and US-98 legislation and
beyond. The inclusion of pilot injection also results in significant reduction
in engine noise.
• Full Electronic Control—DCR offers all the benefits of full electronic
control fuel metering and timing, as well as the option to interface
with other vehicle functions.
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Troy, MI 48098