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Properties of material with nanofiber layer used for filtering the inlet air of internal combustion engines

The properties of nanofibers, and the possibilities of their application in industry, including the production of car air intake filtration materials for vehicle engines are discussed. The attention is paid to the low efficiency of standard filtration materials based on cellulose in the range of dust grains below 5 μm. The properties of filtration materials with the addition of nanofibers are described. The conditions, and methodology of material filter paper tests at the station with particle counter were developed. Studies on the filtration characteristics, such as: efficiency, accuracy, as well as pressure drop of filtration materials differing in structure were made: standard paper, cellulose, and these materials with the addition of nanofibers. These are commonly used filter materials for the production of filter inserts of car air intake systems. Test results show significantly higher values of the efficiency, and filtration accuracy of materials with nanofiber layer addition of dust grains below 5 μm in comparison with standard filter paper. It was found that there are 16 μm dust grains in the air flow behind the insert made out of cellulose,, which may be the reason for the accelerated wear of the engine's "piston-piston ring-cylinder" association. Lower values of filtration materials dust mass loading km with the addition of nanofiber layer, in relation to standard filter paper were observed.
Topic: Engine testing, durability, reliability and diagnostics
Author: Tadeusz Dziubak