This is how BMW will improve the performance and efficiency of its engines

The engines of BMW have for years been characterised as among the most efficient on the market in terms of the energy obtained from every drop of fuel burned. Now, the manufacturer tells us it continues to study and research ways to reduce consumption even further in its Efficient Dynamics powertrains.

These improvements will arrive for both the petrol and diesel ranges, with the revised and improved three- and four-cylinder engines. We shouldn’t have to wait long to get access to these updates, as we expect they will debut first in the new generation of the BMW 5 Series, before gradually spreading across the BMW range and to the MINI models as well.

As we said, the aim of the Efficient Dynamics engine update is to reduce consumption, which in turn lowers levels of polluting emissions and also reduces the level of noise emitted, which after all is also pollution, acoustic pollution, but pollution nonetheless. In addition to being slightly more efficient than the Efficient Dynamics units seen so far, the manufacturer also allows itself the luxury of extracting slightly higher performance, gaining a bit of extra horsepower and small additional doses of torque.

Some of the solutions used by BMW in its petrol engines are TwinPower Turbo technology, direct fuel injection onto the piston crown, the Valvetronic system that regulates the lift of the intake valves, and the Double-VANOS system, which adjusts the valve timing on both intake and exhaust. Both the turbo and the exhaust manifold are integrated into the engine block. Meanwhile, fuel pressure rises to 350 bar.

Likewise, in the diesel engines, the German brand claims it has been able to reduce the consumption of its engines and therefore also polluting emissions, while also achieving slightly higher energy figures. The changes made to the diesel units mainly come with a new exhaust gas recirculation (EGR) device and the new selective catalytic reduction (SCR) system, which, thanks to the injected AdBlue fluid, separates the NOx to convert it into nitrogen and water. The pressure of the common-rail injection system has also been increased.

Source | BMW