Mercedes 2009 Annual Report Download - page 20

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16
Internalcombustionengines.Economicalwithgasolineandcleanwithdiesel.
Until the large-scale market launch of emission-free drive
systems, we pursue the goal of making diesel engines as
clean as gasoline engines and making gasoline engines
as economical as diesel engines.
CGI (stratied charged gasoline injection)transportsfuel
preciselytothesparkplugsandisregardedasakeytechnology
toreducethefuelconsumptionofgasolineengineswhile
optimizingtheirperformance.
CDI (common-rail diesel injection)isamilestoneofdiesel
technologybywhichfuelisinjectedintothecylinderviathe
pressurizedcommonrail.Thisreducesconsumption,emissions
andcombustionnoises.
BLUETECimprovesdieselengines’efciencybyoptimizingtheir
combustion,andreducestheiremissionsthroughexhaust-gas
aftertreatmentwithSCRcatalysts.
BlueEFFICIENCYisthenameofourtailoredefciencypackages
forsavingfuel.Thisincludesvariousmeasurestakeninside
enginesthatwehaveputintoseriesproductionforthersttime,
bodyworkweightsavings,low-resistancetires,aerodynamic
optimizationsandtheECOstart-stopfunction.
TheDIESOTTO enginecombinesthelowemissionsofthegasoline
enginewiththelowconsumptionandexcellenttorqueofthe
dieselengine.Atthesametime,itoffersfascinatingperformance
andsmoothness.
Efcient assembly: Pre-series production of the
new and highly efcient six and eight-cylinder
gasoline engines has already started at the plant
in Bad Cannstatt.