valvetronic engine technology - IFET College of Engineering
valvetronic engine technology - IFET College of Engineering
valvetronic engine technology - IFET College of Engineering
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power unit with its butterfly fully open.Under normal driving conditions,however, throttle-free load managementsignificantly reduces fuel consumptionin practice.CONCLUSIONIn summary, these innovativedevelopments provide a combination <strong>of</strong>product features thus far inconceivablewith a spark-ignition <strong>engine</strong>. Theintroduction <strong>of</strong> the world’s first intakemanifold providing infinite variation inmanifold length serves to improve thetorque level, which is already very goodto begin with. A particular highlight <strong>of</strong><strong>engine</strong>s with Valvetronic loadmanagement is the significantlyimproved fuel/air mixture guaranteeingminimum fuel consumption, maximumspontaneity and optimum refinement.DFI with a stochiometric air/fuelratio provides the highest level <strong>of</strong>specific output as well as a combustionprocess helping to fulfil all exhaustemissions standards worldwide. Allround,general use <strong>of</strong> the latest directinjection<strong>technology</strong>, in turn, faces somesignificant drawbacks such as costs, theneed to make the combustion processvery robust and the potentials in exhaustemissions treatment.Valvetronic combines asignificant improvement <strong>of</strong> fuelconsumption with excellent <strong>engine</strong>response and control, allowing optimumvalve timing under all runningconditions. The result is smooth and freeoperation <strong>of</strong> the <strong>engine</strong> under part loadwith very little throttle effect. Optimisedfuel/air mixture management ensuressignificant advantages in fuel efficiencycompared with a conventional fourcylinder<strong>engine</strong>, reaching the samestandard as today’s lean-burn concepts.Since such an <strong>engine</strong> with Valvetronicdoes not require an NOx removalcatalyst, it can be used worldwide withall types and grades <strong>of</strong> fuel.REFERENCES:www.bmwworld.com/<strong>technology</strong>/<strong>valvetronic</strong>www.bmwworld.com/<strong>engine</strong>s/<strong>valvetronic</strong>www.wikipedia.org/wiki/<strong>valvetronic</strong>Internal Combustion Engines bySEMINAR TOPIC FROM ::www.edufive.com/seminartopics.html