The future of vehicles will not only be electric (an idea we have explored twice today). Just this week, we learned that a legendary manufacturer has unveiled a four-cylinder engine that uses combustion never seen before. It is so unprecedented that it has 200 hp of power and a range that will leave the REVs behind forever.
The first four-cylinder engine from this legendary carmaker: goodbye to EVs
Four-cylinder engines were good enough. They could easily bang the head of one hundred power per liter. However, the company did the unbelievable by launching a four-cylinder 2.0-liter engine that until its release could rev up to a stratospheric 7,600 rpm and 200 hp.
Combining the new combustion technology booming in the market, as well as the lightweight materials and a smart design, this engine yields through production what was beforehand though to be impossibly difficult for an engine with four cylinders in the car industry.
200 hp and four-cylinder concept: how this new engine from Yamaha works
Yamaha’s latest four-banger, an example of outstanding engineering, a miraculous piece of equipment from a 2.8 liters displacement is the next level of performance. The magic here is the engine’s capability of spinning at an impeccable 7600 rpm redline and generating 200 horses.
Of course, it is a very lightweight rotating assembly that allows reaching a top speed, which is written in the stars. The connectors are made of hands-craft highly-strength aluminum and to achieve good heat emission. The connecting rod is titanium -the best match for its strength and lightness.
The combustion system includes the advanced feature of up to 2.8 litre displacement, and this technicality gives this small engine opportunity to deliver a lot of power. A degree of the clever “variable camshaft timing,” combined with direct fuel injection, is what volumetric efficiency depends on.
Cam profiles are adjusted giving the engine precise breathing. As a result, tiny cylinders are filled with dense air/fuel mixture sucked in during inlets and released during exhausts. This allows for the fuel to be sprayed at amazing pressure but still within the combustion chamber.
This doesn’t raise liter, but rather redulsess the volume of the engine to 1.7 liters, which can make four cylinder engine to rotate up to 7.600 rpm to generate 200 harts power. Engineers affirm proceeded earlier thought and made clear there are still room for development of four-cylinder layout engines.
Fuel injection, the new type of non-polluting combustion that will change everything
Yamaha of its new engine will apply a highly complicated fuel injection system which gives the control of the air-fuel mixture in precise way. Contrary to the conventional system of pre-intake combustion chamber port fuel injection, this engine uses direct injection.
Direct manifold injection supplies more benefits comparing to tunnel injection that allows achieving of higher rpms and producing the powerful engine. Injection of the fuel can be performed after the compression stoke for more time to agitate the mixture and ensure complete homogeneous burning.
More indirect injection has the capacity to form an optimal stratification system in which a richer mixture is around the spark plug while it is surrounded by leaner one. This, by doing so, mean that it can generate higher ratio of compression without running the risk of detonation.
Generally, the DI system provides more comprehensive regulation of combustion by utilizing the quickest response time than the older systems. Through the manipulation of the fuel spray’s timing, location and pattern these valves are regulated to meet the specific engine’s needs.
It is clear that this four-cylinder engine will expand the possibilities of zero-emission mobility, but we do not yet know to what extent it will do so. The key now is to further develop the hydrogen infrastructure, with refueling stations across the country merging with electric car charging points. Whether this means the end of gasoline is something we will look at in due course.