Injector Nozzle DLLA151SM103 Common Rail Nozzle

The impact of carbon deposits on fuel nozzles Carbon deposits are one of the most common causes of fuel nozzle clogging. Due to the problems of idling and traffic jams in urban driving and use of diesel-engined cars and engineering vehicles, diesel engines will not work properly. After a long period of time, the impurities and gums contained in the diesel oil accumulate and deposit at the fuel nozzle. During the process of fuel injection and combustion, these deposits are easy to form carbon deposits under high temperature and incomplete combustion, especially in the Carbon deposits are generated more at idle speed. The existence of carbon deposits will cause the needle valve to close laxly, making the pressure of the nozzle nozzle insufficient when injecting fuel. At the same time, the carbon deposit at the nozzle position will seriously affect the atomization state, which will lead to poor combustion, abnormal exhaust, and Intermittent vibration and other problems, severe carbon deposits will cause complete blockage of fuel nozzles, and serious damage to diesel engines.

The impact of unreasonable installation The installation status of many components in the fuel supply system may affect the working quality of the fuel nozzle. For example, the installation of the oil pipeline is not reliable, which may cause air leakage at the pipeline joint, resulting in insufficient oil delivery or Air is mixed in the oil, which reduces the atomization effect of the fuel injection and may cause insufficient fuel injection; the aging or incorrect installation of the piston spring of the fuel nozzle will also cause insufficient compression force and affect the atomization effect of the fuel nozzle; the piston assembly Incorrect installation may lead to lax sealing, resulting in a decline in the performance of the fuel nozzle; damage to the sealing gasket during installation and incorrect installation direction are also one of the reasons for the decline in the performance of the fuel nozzle.