Common-Rail Direct Fuel Injection
CRD
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.
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