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- Porsche Six Self-Suction Engine
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 Drag coefficient and fuel consumption Alerter l'administrateur Recommander à un ami Lien de l'article 

Of course, this is a theoretical value of the formula, the actual test of course, there will be more uncertain factors introduced. But from this basic formula we are not difficult to find, in the same speed, the air density is certain, with the level of the model is actually the projection area is almost, so the real impact of the size of the wind resistance is the drag coefficient. Through the actual calculation, the speed of 100km / h, when about 60% of the power output are used to resist wind resistance, which is why the major manufacturers to reduce the wind resistance factor on the vehicle to spend great effort. Another data is the relationship between drag coefficient and fuel consumption, for the traditional energy vehicles, the current international recognition of the higher argument is the wind resistance factor for every 10% reduction in fuel consumption can be reduced by 3%; and for new energy vehicles, Drag coefficient reduced by 0.02, the mileage can be increased by 3km; so car modeling nearly a hundred years of development, that is, in order to reduce one another and 0.01Cd and work. Among the three commemorative models are the following three: The third generation of AUDI 100 in 1982: the first wind resistance coefficient of 0.3 production car PASSAT B5: The first domestic sedan with emphasis on the importance of drag coefficient is only 0.28 3.2016 BMW NEXT 100 Conecpt: Up to now the world's best aerodynamic performance, the drag coefficient is 0.18

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