CRDI is a modern fuel system and advanced technology used in an automobile. Let us know about the composition of that are listed below :
Pressure supply pump :
The electric fuel pump comprises:
- Electric Moter
- Roller-Cell Pump
- Non-Return Valve
- Rail-pressure sensor (RDS)
- Injector
High-pressure pump :
- The pump plunger moves downward
- The inlet valve open
- The fuel is drawn into the pumping element chamber(suction stroke)
- At BDC, the inlet valve closes
- The fuel in the chamber can be compressed by the upward moving plunger.
- High- pressure accumulator (Rail).
Pressure-control valve (DRV) :
- Responsible for maintaining the pressure in the rail at a constant level.
- Common Rail is an EDC controlled injection system
- The ECU controls & monitors the complete injection process
- The sensors deliver all the measured values which are required in the process
Rail-pressure sensor(RDS) :
- Measures the pressure in the rail
- Inputs the information to the ECU.