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DETERIORATION OF THE FUEL INJECTION PARAMETERS AS A RESULT OF COMMON RAIL INJECTORS DEPOSIT FORMATION
The article describes external and internal Common Rail injectors deposits formed in dynamometer engine simulation tests. It discussed not only the key reasons and factors influencing injector deposit formation but also the resulting way of fuel preparation and engine test approaches. The effects of external coking deposit as well as internal deposits two most common form types that is carboxylic soaps and organic amides on deterioration of the fuel injection parameters were assessed. The assessments covered both deposits impacts on quantitative and qualitative changes of the injectors diagnostic parameters and as a result on deterioration of the injector performance. Finally the comparisons between characteristic of dosage of one fuel injector before test and characteristics few injectors after engine tests of simulated deposit formation were made.
Key words: Diesel engines, fuel injector deposits, injector deposits reproducing, impact of deposits on injector operation
Key words: Diesel engines, fuel injector deposits, injector deposits reproducing, impact of deposits on injector operation
Tematyka artykułu: Systemy wtrysku paliwa i tworzenia mieszaniny palnej
Autor: dr inż. Zbigniew Stępień
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