Common Rail Injector Bebe4d03001 Bebe4d03101 Bebe4d03201 Bebe4d34001 20847327 22340639 21467241 for Volvo Penta D12 for Delphi Engine Parts

The fuel injector in Figure 1, also known as the needle valve assembly, has a very important influence on the atomized particle size, spray shape, spray speed, and spray volume of the fuel injector. However, in actual use, due to the internal blockage of the fuel injector, that is, impurities and blockages are mixed in the fuel, which blocks the movement gap between the needle valve and the needle valve body inside the fuel injector, resulting in mechanical failure of the needle valve. If the action is not normal, the engine will have adverse symptoms such as difficulty in starting, unstable idle speed, and poor acceleration.
These mixed impurity plugs are divided into metallic and non-metallic types. Among them, the harm caused by the clogging of metal impurities is the most serious. If the situation is serious, it will even cause serious shaking of the diesel engine, causing abnormal and rapid wear of related mechanical parts, causing unnecessary damage. It should be noted that, in actual use, if the function of the diesel filter 3 is intact, the harmful impurities and moisture in the fuel can be fully and effectively filtered out after passing through the diesel filter 3, but oil pollution may still occur. The internal blockage of injector 5a, especially the batch blockage of multiple injectors of the same model, not only embarrasses users and maintenance personnel, but also makes injector manufacturers helpless. They do not know how to take preventive measures, eliminate causes, and eliminate Fault.
Therefore, when the injector is clogged, especially when there is a batch clogging event, how to quickly judge the source of the clogging of metal impurities, that is, where it comes from and what it is, is extremely important. Because, once the cause is found, proactive preventive measures can be taken to prevent failures such as batch blockages from recurring.
In addition, due to the light weight and small size of the metal impurity blockage collected from the inside of the clogged injector, it can no longer be analyzed by traditional carbon and sulfur analyzers, photoelectric spectrum analyzers, etc. clogged. Analyze and determine source of blockage. At present, it is generally only possible to use dedicated laser probe trace component analyzers, ion probe mass spectrometers, Auger electron spectrometers, electron probe X-ray spectrometers, electron probe X-ray spectrometers, etc. The micro-area chemical composition analyzer is used to determine the composition of metal impurity blockages.