A Study on the Effect of Inlet Air Pollution on the Engine Component Wear and Operation

This paper systematically reviews the research progress in field of influence air pollutants engine inlet on accelerated wear elements association: piston, piston rings, cylinder liner (P-PR-CL), and plain bearing (journal–panel). It was shown at outset that primary component pollution is road dust. Its main components are dust grains hard minerals (SiO2, Al2O3), which penetrate oil film area between two frictionally mating surfaces causing their abrasive wear. Therefore, effect three parameters (grain size hardness, concentration air) friction pair: liner(P-PR-CL), (journal–pan) presented extensively. noted values same were obtained by different researchers using testing techniques evaluated indices. has been greatest cooperating caused with sizes equal to thickness a given moment, typical combustion associations assumes varied variable range 0–50 µm. The upper ring varies depends crankshaft rotation angle, speed load, viscosity, takes less than 10 maximum liner, resulting from cooperation occurs top dead centre (TDC) results unfavorable (high temperature, low speed) operating conditions these elements. From extensive literature data cited, it follows specific dimensions, most often 5–20 µm, greater hardness sulfur content fuel. At time, bearing, experienced particle size, respectively: 20–40, 5–10, 20–80 ?m. mass enters cylinders thus determined dust, value definitely reduced filter. However, pointed out initial filtration efficiency presence large purified period filter operation (after replacement element new one) may have an impact mainly (P-PR-CL) association. next stage presents effects excessive rings engine, actual vehicle bench tests decrease compression pressure power, increase intensity exhaust gas blow-by into sump consumption toxicity. addresses current problem contaminants performance flow meter, essential sensor modern internal engine. phenomenon deposition (mineral salt, carbon deposit, moisture) measuring (wire or layer anemometer) meter analyzed. empirical show mineral causes 17.9% reduction output voltage, 46.7% voltage. affects power