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#Common Rail Injector Assembly 2413400#
#4-Cylinder Cam Disk DE637#
#0445110450 Injector Valve Set#
#Valve Sets F00V C01 377#

How common rail injectors work
The diesel common rail system is now the most commonly used fuel injection system for diesel 
engines. First commercialised by DENSO, it enables the engine to have greater control over 
the pressure of fuel injection, leading to a more reliable and efficient combustion process.
After the fuel has been pressurised within the fuel pump, it is stored in the common rail 
system, also known as the accumulator, before being sprayed via the injectors into the 
combustion chambers. Each of these injectors can be adjusted within set limits depending on 
the required fuel pressure and timing for the delivery of fuel. Unaffected by the engine’s 
rotation speed, having multiple injectors available to send fuel to the engine at different 
pressures or times enables a greater level of flexibility in terms of the level of power, 
fuel consumption and emissions that are produced by the engine.

Some advanced common rail fuel systems perform as many as five injections per stroke.
The injector of the Common Rail System contains the injection nozzle, an actuator in the case 
of piezo injectors or a solenoid valve in the case of solenoid injectors plus the hydraulic 
and electrical connections to trigger the nozzle module. An injector connected to the rail 
via a short high-pressure line is installed in each engine cylinder.