Mercedes-Benz has simply obtained a patent for the brand new V8 engine that may energy its highest-performance fashions just like the Mercedes-AMG GT 63 successor beginning very quickly. Normally a patent means a brand new improvement in horsepower or effectivity, however this time Mercedes-Benz is all about noise. The patent covers strategies that Benz can use to “notice a very advantageous noise conduct.” In different phrases, it is a patent for an engine that’s meant to sound superior. In spite of everything, what is the level of getting a V8 if it does not even sound like one?
Mercedes-Benz Is Crossing The Streams For a Massive Noise
On this case, “crossing the streams” is not only a witty Ghostbusters reference. In nearly each vee-arranged engine ever created, there are two exhaust manifolds, one for all sides of the vee. There are efficiency beneficial properties available by making each exhaust runner the identical size, and sound and efficiency variations that come from making them be part of additional down the system in an X-pipe or an H-pipe, and even protecting them fully separate.
This method will mix the exhaust pulses from cylinders out of sequence, as an alternative of following the cylinders down every financial institution. It should get difficult, however we’ll do our greatest to convey the fundamentals. The takeaway is that Mercedes desires to make all the things good and equal proper from the beginning.
The engine could have 4 of what the patent calls “exhaust strains.” The primary one will pair cylinders one and three, which appears easy sufficient. The second, although, will pair cylinders two and 5. That is the second cylinder on the primary financial institution and the primary cylinder on the alternative financial institution. The movement will cross the vee.
Six and eight may even be mixed, together with seven and 4. Seven and 4 would be the two that cross the vee, making two exhaust pairs that bridge that hole. The primary paring (pistons 1,2,3,5) will drive one turbo. The second pairing (4,6,7,8) handles the second turbo. Everyone on board?
The purpose of all this complexity, so far as we will inform from the patent, is pure sound. Mercedes-Benz desires to make V8 noise, presumably in such a way as to make folks overlook the corporate used a four-cylinder within the AMG C63. “Specifically, the invention makes it potential to generate the standard so-called V8 blood within the fired operation of the V8 engine, in order that the V8 engine generates a very nice and highly effective noise, particularly throughout its fired operation, for an individual within the atmosphere of the V8 engine.” There is not any different strategy to learn that.
Even the firing order is supposed to make the engine sound higher. The sequence will likely be 1-5-4-8-3-7-2-6. So every cylinder pair could have its combustion pulses as separate as potential. In concept, this offers for each to pontificate earlier than the subsequent one arrives.
New V8 Design Ought to Ship Energy, Effectivity, And Sound
The ensuing exhaust manifolds will likely be a nightmare of packaging, however to assist, the engine will likely be a Scorching Vee design. The turbos (and exhaust runners) will likely be contained in the valley of the engine, between the cylinders. So the artistry will not be seen on the surface. And we suspect any form of exhaust or turbo upkeep could be a nightmare. However that is the value for beautiful combustion music.
This V8 will likely be a flat-plane crank design, as a result of Mercedes-Benz says it’s higher for effectivity and energy. The difficulty, for Benz no less than, is {that a} flat-plane crank is unhealthy for “the standard V8 blubber, in order that often an embossed V8 blood cannot be generated.” We’re unsure Ferrari and even Ford Mustang followers would agree, however Benz feels strongly about it. Due to the bank-overlap from this new design, Mercedes-Benz is assured that it’ll cancel out the flat-plane crank impact and ensure “the V8 motor has the standard V8 blood in its idling mode.” This patent is simply full of fascinating V8 reward.
With this new design, Benz appears to have mixed the advantages of a flat-plane crank and the sounds of a traditional V8 design. Extra energy, higher sound, extra “V8 blood.” “Advantageous noise conduct.” All of it seems like one thing Dodge would say about its newest electrical muscle automobile, so it’s totally fascinating to see connected to a Benz. Here is hoping that it makes manufacturing quickly, and loudly.
Patent filings don’t assure using such know-how in future automobiles and are sometimes used solely as a method of defending mental property. Such a submitting can’t be construed as affirmation of manufacturing intent.
Supply: EUIPO