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volnej preklad:The application of EGR also adversely affects the lubricating oil quality and engine durability[28–33]. Gautam et al. experimentally proved that soot interacts with oil additives reducing its anti-wear properties possibly by abrasive wear mechanism
a dalsi zajimava citace jePouziti EGR ventilu ovlivnuje mazaci kvality oleje a vydrz motoru.Experimentalne bylo dokazano ze saze snizuji kvalitu oleje a jeho antiabrasivni vlastnosti.
However, application of EGR also leads to penalties. In case of diesel engines, these penalties include higher specific fuel consumption and particulate matter emissions. Effectively, a trade-off between NOx and soot is observed with the use of EGR[22–27]. The reduction in flame temperature reduces the rate of soot oxidation/re-burning. As a result, in EGR system, more soot is formed during combustion and it remains un-oxidized and eventually appears in the exhaust
a hlavni duvod proc bylo namereny tolikanasobny prekroceni je hlavne v tom ze se EGR pri 100% seslapnuti plynu u VW zavre a motor pak bere jen cistej vzduch a rovnou ho vypousti ven bez recyklaceAvsak vyuziti EGR vede taky k nevyhodam. V pripade dieselovych motoru tyto nevyhody zahrnuji vyssi spotrebu paliva a vyssi tvorbu sazi. Vicemene dochazi ke kompromisu mezi mnozstvim NOx a mnozstvim sazi. Snizenim teploty spalovani nedochazi k tak kvalitnimu "vypalovani" sazi. Coz ma za nasledek vice sazi ktere se eventuelne objevi ve vyfuku.