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Coolant circuit``````Cover``````Electronichousing4Injectionsystems1Curr ently the trend is upping uses algorgoritithmshmstoto mamananagege``````Volute``````inje ction pressure s, with exhaus t gagass rerecicircurculalatitiononincreased costs for stronger to preventsoosootiting anngandd E-motor andcomponents suchas block, incompletee cocombusmbustitionon,, housinghead, pistons and beari ngs. allowing a sisimplmplererananddIncreased line pressure, cheaperththreree-e-wawayycacatatalylyststmorepowerful fuel pumps to be usededththatatelelimiminainatetessand moresturdy inje ctors NOx, hydrodrocacarbrbononananddall add cost. Minimising CO 2. First applic ationsthese developments helps by 2020.contain costs. So, in thelongerterm, Delphi isworking on stoichiometricdiesel combustion of 14.4:1 Electric turbochargerscompared to petrol’s 14.7:1(stoichiometric is the ratio``````5The latest electri c engine ef ficiency at lowof the grams of air requir ed AirCharger(eAC) from engine speeds, assistingto burn one gram of fuel). Pierburg (above) uses 12v in bringing the selectiv eTo achi eve this Delphi or 48v to spin the auxiliary catalyst reduction (SCR)turbo to maximumboost to oper ating te mper aturewithin 220-230 m/secs, quicker , reducing emissionsbridging the gap normally and boosting fuel economyassocia ted with turbo lagby 3-5%. First applicationcaused by low engine load on a smal l capacit y diesel, inand speed.This improves 2017-2018.``````VW may havecheated the test,but the dieseltechnology issound, and fastimproving``````WORDSIAN AD``````COCK``````ILLUSTRATION``````AERIFORM``````January 2016 |TOPCAR.CO.ZA 97