Common-Rail Direct Fuel Injection (CRD) is a high-pressure injection system for diesel engines with direct injection. The central part of the system is a shared (common) high-pressure delivery rail. The CRD system keeps the fuel at a constant high pressure and pumps it through variable and exactly adjustable injector nozzles along the common rail. The advantages of the common-rail system are high performance and reduced fuel consumption, minimal emissions and quieter operation.
The advanced electronic injection system, found on Compass's 2.0L CRD Turbo Diesel, Cherokee's 2.8L 4 cylinder CRD, Grand Cherokee's 3.0L CRD V6 and Commander's 3.0L CRD V6 engines, is highly adaptable. Its common-rail architecture and electronic controls make the system capable of new features, such as multi-pilot injection (to smooth combustion and quiet the engine), and high operating pressures that the hydro-mechanical system used in older engines cannot duplicate. These new features contribute to smoother, quieter operation and compliance with the more stringent exhaust emission standards.
Crunch The Numbers:
Jeep Compass 2.0L CRD Turbo Diesel
Power: 103 kW @ 4000 rpm
Torque: 310 Nm @ 1750 - 2500 rpm
Fuel Consumption* (1/100 km) (Combined^): 6.5
Jeep Cherokee 2.8L Power Tech CRD I-4
Power: 120 kW @ 3800 rpm
Torque: 400 Nm @ 1800 - 2400 rpm
Fuel Consumption* (1/100 km) (Combined^): 10
Jeep Grand Cherokee 3.0L CRD V6
Power: 160 kW @ 4000 rpm
Torque: 510 Nm @ 1600 - 2800 rpm
Fuel Consumption* (1/100 km) (Combined^): 10.2
Jeep Commander 3.0L CRD V6
Power: 160 kW @ 4000 rpm
Torque: 510 Nm @ 1600 - 2800 rpm
Fuel Consumption* (1/100 km) (Combined^): 10.2
*Figures based on overseas model as tested by Chrysler LLC.
^Tested to New Zealand standards
