Experimental Dust Absorption Study in Automotive Engine Inlet Air Filter Materials

Area of Science:

• Engineering
• Materials Science
• Environmental Science

Background:

• Internal combustion engines require efficient inlet air filtration to prevent damage and maintain performance.
• Existing filter materials face challenges in balancing filtration efficiency, dust capacity, and airflow resistance.

Purpose of the Study:

• To empirically evaluate the performance of various fibrous materials for internal combustion engine air filtration.
• To assess filtration efficiency, accuracy, flow resistance, and dust accumulation characteristics.
• To investigate the potential of a novel composite filter bed.

Main Methods:

• Testing of single-layer (cellulose, polyester, glass microfiber) and multilayer (cellulose-polyester-nanofibers, cellulose-polyester) filter media.
• Evaluation of a new composite filter bed comprising polyester, glass microfiber, and cellulose.
• Determination of filtration characteristics based on accumulated dust mass and specific air filtration quality factors.

Main Results:

• The novel composite filter bed demonstrated high pre-filtration efficiency (99.98%) and accuracy (1.5-3 µm).
• The composite exhibited a 60-250% higher dust absorption coefficient compared to other tested materials.
• Filtration parameters were found to be dependent on the type and order of filter layers within the composite.

Conclusions:

• A composite filter bed, engineered with multiple layers of materials, offers superior performance for engine intake air filtration.
• The developed composite material provides excellent filtration efficiency, accuracy, and dust absorption capacity.
• The study presents a viable methodology for selecting and testing advanced filter materials for engine applications.