New Mercedes-Benz C 320 CDI (OM 642): a light, compact and powerfull V6 Diesel
After a development and testing period of approximately 40 months, a new 3-liter V6 CDI engine is entering series production and supersedes the 5 and 6 inline diesels of Mercedes-Benz. The new OM 642 incorporates all the up-to-date technologies in diesel engine development – from the mechanical system and thermal/flow dynamics to the electronic engine management and emissions control. It weights 208 kg only, roughly the weight of the former inline 5 and about 12 kg less than the Audi V6 TDI of the same power but with a lower torque back up. Moreover, a prototype version with 2-stage sequential turbocharging by 3 turbochargers has been partly unveiled at the Geneva Motor Show and will most probably be commercialized soon.
Contents :
Page 1 : Introduction,
Page 2 : General concept –valves and timing gear,
Page 3 : Cylinder block,
Page 4 : Crankgear,
Page 5 : Common rail fuel injection ,
Page 6 : Intake – turbocharging - EGR,
Page 7 : Lubrication and heat management, emissions control,
Page 8 : A two-stage sequential tri-turbocharged version,
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