Common Rail 20798683 Injector Encyclopedia Knowledge

Fuel injector 20798683 is the most critical and complex part in common rail system, and it is also the most difficult part in design and process. By controlling the opening and closing of the solenoid valve, the ECU injects the fuel in the high-pressure fuel rail into the combustion chamber with the best fuel injection timing, fuel injection quantity and fuel injection rate.

 

In order to achieve an effective of 20798683 injector’s fuel injection starting point and precise fuel injection quantity, common rail system uses a special fuel injector with hydraulic servo system and electronic control element (solenoid valve).

 

The fuel injector 20798683 is composed of an orifice nozzle which similar to traditional fuel injector, a hydraulic servo system (control piston, control metering hole, etc.), a solenoid valve, etc.

 

 

20798683 Injector’s Part Number Location

1)E.g.:The injector part number see as follows

20798683- Injector

No. Name
A brand, logo, part number,

series number

B nozzle part number

 

20798683 Injector’s Application Scenarios

Common rail system is an oil supply method refers to the diesel oil from the fuel tank sucked out by the gear pump through the oil-water separator and the gear pump to diesel fine filter, high-pressure pump, common rail pipe, and fuel injector, all together with the closed-loop fuel supply system composed of sensors and ECU that completely separates the generation of injection pressure and the injection process from each other.

20798683-Injector

Pic No. 1

No. Name No. Name No. Name No. Name
1 Tank 5 Common Rail

Pressure Sensor

9 Engine Crankshaft Sensor A High Pressure Oil Circuit
2 Diesel Filter 6 Common Rail Pipe 10 Camshaft Sensor B Low

Pressure Oil Circuit

3 High-Pressure Pump 7 Injector 11 ECU Electronic Control Unit
4 Fuel Gear Pump 8 Accelerator Pedal

 

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