Common Rail Injector Nozzle L357PBC
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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.