The analysis of technical condition common rail fuel system components

The article describes the high pressure fuel pump CP1H Common Rail system and fuel injectors which worked on bad fuel quality. It was presented how can high pressure injection pump and fuel injectors diagnose. Research objects were dismantled for spare parts and checked under microscope. Paper discusses construction and mechanism of action researched fuel pump and injectors. During the researches has been presented crucial elements. It has been described the areas where are produced metal fillings in pressure pump and how it influences on the injectors. It was discussed the methods of prevents them. In addition, the influence of the state of the power supply system on the process of creating a combustible mixture and its combustion, as well as the ecological safety of piston combustion engines are described.