Abstract
Properties of filtering materials used as porous barriers in filter elements of motor vehicle air cleaners have been analyzed. Criteria of fiber and paper selection for the filter elements have been presented. A relation showing the filter life and a coefficient of dust absorption km of filtering materials have been presented. A methodology of research of the fiber filter element characteristics has been developed. Results of investigations of the characteristics of efficiency, filtering accuracy and drag of the filtering fiber operating at different filtering rates have been presented. The coefficients of dust absorption km of the filtering fiber have been determined. Changes in the granulometric properties of dust in the airflow downstream of the filtering fiber and paper have been presented.
Highlights
Intake air cleaning in modern passenger vehicles and light duty trucks is realized through single stage air cleaners fitted with a porous barrier, most of the time in the form of a paper filter element [1, 3, 5, 7, 13, 14]
The selection of filter elements in the air cleaner depends on the area of the filtering material resulting from the engine air demand QSil and the admissible filtration rate that amounts to uFdop = 0.03–0.12 m/s [1, 2, 3, 6, 7, 12]
Coefficient of dust absorption km of the filtration fiber determined with the presented methodology for the filtration rates in the range u F
Summary
Intake air cleaning in modern passenger vehicles and light duty trucks is realized through single stage air cleaners fitted with a porous barrier, most of the time in the form of a paper filter element [1, 3, 5, 7, 13, 14]. Dust absorption coefficient km for typical cellulose based filtration materials and standard types of dust of grain size not exceeding 100 mm (dust of this grain size gets directly onto the filter element of a single stage air cleaner) is defined and assumes (until it reaches the predefined drag Dpfdop) maximum values in the range km = 190–220 g/m2 [3, 6]. The performance of such research, for cleaners applied in engines of high air demand is costly and time consuming This objective can be completed by a simple and cost efficient method, consisting in testing a special filter element (hereinafter referred to ‘test filter element’) of properly selected area of the filtration material with a proper filtration rate. The determination of the characteristics of the filtration material with the above unconventional method is possible in experimental research using appropriate methodology
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
