Mercedes 4.7 displacement V8 double turbo engine

Facing the increasingly stringent emission standard with one hundred years history of making cars Mercedes also sit not to live, no longer insist on large displacement naturally aspirated or the supercharged technical route, launched the Blue EFFICIENCY technology's 4.7-liter V8 (4662 ml) double turbocharged straight turbojet, the cell Numbers for M278 engine first launch in S500L CGI, overseas edition of the CL500 Blue EFFICIENCY and CLS500 (parameters set to 300 kw and 600 cattle • m) cars, etc, then use at grade E and other types of in.From the parameters on look, this engine cylinder size, stroke were 92.9, 86.0 mm, compression ratio 10.5, can turn in 5250 when the 435-horsepower realize (320 mw) of the most high power, and peak torque 700 cattle • m is in 1800 turned to turn 3500 between output. At present and it is tie-in 7 G in Mercedes classic-TRONIC seven speed automatic transmission improvement based on the 7 G-TRONIC PLUS enhanced transmission, in the power of the combination, driven to overseas version of the CL 500 Blue EFFICIENCY models for example, its 0-100 km/hour's acceleration time from change before the engine of elevated to 5.4 seconds 4.9 seconds and its dynamic performance of ascension is obvious. And for weight more than two tons of S500L CGI for, obviously, the engine of strong.Mercedes this new 4.7 displacement V8 double turbo engine using a lot of light materials (such as magnesium alloy components), also use the low resistance piston, piston and cylinder liner unit etc, reduce the operation the inertia of the parts and resistance, and the optimization of the exhaust system, let the engine run more smoothly. It is new V8 engine running third generation of injection systems, combined with the piezoelectric nozzle, it can in milliseconds level interval perform multiple ignition, and achieve better fuel efficiency.This one new V8 engine also introduced more efficient machine oil and air conditioning compressor, and new development of level 3 type Mercedes control system of thermal cycle, not only that, the emissions more than 4.5 litres of power system also includes the ECO idle rev. Stop device and generator management system, more in line with Blue EFFICIENCY pursue high efficiency of the whole technical requirements.In all kinds of lightweight and optimization with the help of technology, plus turbocharged and cylinder direct injection technology bring high efficiency, pick up in new S500L CGI 4.7 displacement V8 engine has the better fuel economy, it's kilometres to fuel consumption can reach the car DVD level of 10.5 liters (than the previous Mercedes engine of the economy at the same level up around 20%), this means that its average carbon dioxide emissions per km to 244 grams, dynamic performance in promoted further at the same time, better satisfy the European emissions standards, it can be said to be very rare.AMG series models that one is 6.2 displacement new 5.5 displacement V8 turbocharged engine replaced will probably make a lot of love in large displacement naturally aspirated engines fans car cameras feel sorry to hear that, but this one 4.7-liter V8 double turbo engine appear can say let you shine at the moment, whether power or economy it is impeccable, the engine of high efficiency and the introduction of new technologies also let Mercedes have at this level more free play space.