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Common rail injector working principle and common six fault detection.

Structure and working principle of common rail injector nozzles

OFF (no injection) => open (start injection) => full open (injection) => closed (injection reduction) => fully closed (stop injection)

02. The injector is stuck

    Symptom: Engine power drops, jitter, and can't even start.

    Fault analysis: The moisture or acid in the diesel oil will cause the needle valve to rust and get stuck. After the sealing cone of the needle valve is damaged, the combustible gas in the cylinder will also enter the mating surface to form carbon deposit, so that the needle valve will be killed and sprayed. The oil loses the fuel injection, causing the cylinder to stop working.

03. Needle valve and needle valve hole guide surface wear

    Symptom: The power is reduced, the engine is difficult to start, and it cannot even start.

Contact: Mr.Rodge

Skype: rodge_chinalutong

Whatsapp: 008613859818106

E-mail: rodge@china-lutong.com