Auto Parts Fuel Injector Diesel Injection 4903472 for Cummins Auto Fuel Common Rail Nozzle Injector

In order to find out the actual situation of fuel cleanliness of relevant parts of locomotive fuel system, field oil samples were extracted from locomotive depot for many times to measure the size and quantity of impurity particles contained in the fuel. The measurement was made using the latest High Precision Particle Measurement System (PPMS) analyzer produced by KLOTZ, Germany. The detection range was from 2 to 100 μm. The measurement results can be expressed according to the number of particles of various sizes.

Ensure the cleanliness of the fuel input to the locomotive fuel tank. In the locomotive depot, the underground crude oil is greatly polluted by the pipeline before it reaches the crude fuel filter. The content of large particles rises sharply, and the particles below 15μm are reduced. In the process of new oil storage, the particle pollution in the oil tends to cluster. For example, the particles about 10 μm in the oil will gradually form 50 ~ 200 μm large particle pollutants after the oil is stored for a period of time. At the same time, the oil has hydrophilic characteristics, so that in the storage process, the water content increases greatly, and the water in the fuel is harmful to the service life of the injection pump and the injector; And because the fuel contains S component, it belongs to the acid substance, the corrosion of the oil pipeline, the corrosion and corrosion of the steel pipe in turn seriously polluted the fuel. If the fuel is directly connected to the locomotive in this state, the fuel filter with sufficient filtering accuracy will not be affordable; If the filtration accuracy is reduced, it will seriously affect the normal operation and service life of fuel injection pump and injector.