Diesel Injector Fuel Injector 0445120484 compatible with injector

From the vibration mode: 1) The contact stiffness of the three-row roller turntable bearing supporting the rotary table is the key factor affecting the grinding machine; 2) The rigidity and mass of rotary table and column are too large, which further points out the direction of lightweight design in the next chapter.

By comparing the vibration modes of machine tool with and without the consideration of machine tool pads, the first four order vibration modes are similar and the natural frequencies of each order are similar. Therefore, the influence of machine tool pads on the dynamic characteristics of the whole machine can be ignored. The following chapters carry out the dynamic analysis of machine tool pads without machine tool pads. 2) Among the first 3 main modes of the grinding machine, the relative displacement of the rotary table is the largest compared with the column, and the elastic deformation of the rotary table and the column is small, which can be approximated as a rigid body. The rigidity and mass of the rotary table and the column are both larger.

The cavitation flow in the nozzle of diesel engine greatly affects the fuel atomization effect, and then affects the emission characteristics of the engine. Based on high speed photography and long working distance microscopic imaging, the flow characteristics and spray characteristics of the prototype nozzle were studied by high pressure common rail test system. According to the development of cavitation under different pressures, the comparative test results show that: the higher the injection pressure, the earlier the time of cavitation, there is also the bubble "release" at the early stage of injection and the bubble "backsuction" at the end of injection. At the same time, a special cavitation phenomenon, linear cavitation, is also observed, and it is found that the occurrence of linear cavitation is closely related to the position of needle valve.