Product Description(DY):#Common Rail Fuel Injector Nozzle 0433171963#
#New C9 Cat GP fuel injector 387-9433#
#New Caterpillar 20R-2284 Diesel Fuel Injector#
#New Caterpillar Injector GP Fuel 4P9076#
#New Common Rail Fuel Injector 387-9433#
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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.
The electrical, hydraulic servo system in the injector receives control impulses from the EDC
(Electronic Diesel Control) to open and close the nozzle module. It is triggered either by a
solenoid-valve or a piezo actuator. Injectors with a piezo actuator can have a slimmer design
and achieve reduced switching noise. Both technologies achieve similarly short switching times
and permit pilot, main and secondary injections. In this way, fuel combustion can be designed
to be efficient and clean at all operating points.