Diesel Injector Fuel Injector 0445110362 0445110363 Bosch for VW / Audi / Seat / Skoda 2.0 Tdi Cr

With the increase of gasoline consumption and the stricter regulations on exhaust emission in China, the traditional port injection gasoline engine can no longer keep up with the needs of the times. The advantages have been increasingly valued by major automakers. The spray characteristics of the injector of GDI gasoline engine directly affect the power, economy and emission of the engine [! The study of spray characteristics under high injection pressure in this paper provides a theoretical basis for the research of GDI gasoline engine. A lot of research has been carried out on the factors affecting the spray characteristics of GDI at home and abroad: He Bangquan et al. have studied the near-field spray characteristics within 1.5 mm below the nozzle hole of a single-hole direct injection gasoline injector by combining a long-distance microscope and high-speed photography. [2, The pressure of the injector used in the research is low. Li Yanfei et al. studied the effects of injection pressure, back pressure and injection pulse width on the spray characteristics of a gasoline direct injection (GDI) engine porous injector by using high-speed photography and phase Doppler particle measurement technology (PDPA). Including spray penetration distance, particle size and velocity characteristics [3]. Although this article involves spray penetration distance, it mainly studies the influence of injection pressure on spray penetration distance, and does not study the influence on spray angle. Cheng Qiang et al. studied the effect of nozzle hole structure on the spray characteristics of GDI injectors [4. Jiang Long et al. used the Schlieren method to study the spray characteristics of direct injection injectors under different environmental back pressures and injection rules at an injection pressure of 16 MPa [S]. Li Xiuhai studied the influence of fuel oil temperature on spray characteristics [6], and the influencing factors of the study were relatively single.