We propose developing a vehicle air-filter testing machine that is innovative and unique. Filters will be tested for leakage (structural integrity) and air-flow restriction when vehicles are serviced. Serviceable filters will be kept in service, saving money and landfill space. At any time (including when brand new), filters may start leaking dust and dirt, causing excessive engine wear. Those defective filters will be detected. Our machine will test each filter up to its maximum rated air flow. We will feed calibrated test dust upstream and count leaked particles downstream with a laser particle counter. A manometer will measure pressure drop. Sensors will transmit data to a computer where fractional filter efficiencies (dust leakage) and pressure drops (restriction) are calculated to reveal defective filters. Anyone using cleaned filters will have increased confidence in the tested filters quality. Accumulated data will answer questions like "how many times can a filter be cleaned" and "how many hours of pulse-jet cleaning can an M1 Vee-Pac filter take before media separation begins?" This testing can be easily and inexpensively performed in a shop setting. There will be substantial savings on filter replacement costs. Acquired data will aid filter management and allow comparison of brands.
Keywords: Air Filter Integrity, Efficiency Testing, Leak Detection, Vehicle Maintenance, Cost Reduction, Service Life.
