Description And Operation: Overview: Notes
The TDV6 3.0L diesel engine is equipped with a High Pressure (HP) common rail fuel injection system. With this fuel injection process, a HP fuel pump delivers a uniform level of pressure to the shared fuel lines (the common rails), which serve all 6 fuel injectors. Pressure is controlled to the optimum level for smooth operation.
The common rail system supports a pre and pilot injection depending on engine operating conditions, which reduces combustion noise levels, more commonly referred to as 'diesel knock'.
Fuel injection pressure is generated independently of engine speed and fuel injection events.
The fuel injection timing and volume are calculated by the Engine Control Module (ECM), which then energizes the appropriate piezo actuated injector.
The common rail fuel injection system has the following features:
- High fuel injection pressures of up to 2000 bar (29007 lbf/in2 ) for greater atomization of fuel (increasing performance and lowering emissions)
- Variable injection to optimize combustion in all engine operating conditions
- Low tolerances and high precision throughout the life of the system.
The system features the following components:
- HP fuel pump
- Fuel rails
- HP and LP (Low Pressure) fuel pipes
- Fuel injectors.