The All New 1.5-litre BMW TwinPower Turbo 3 Cylinder Engine

by Tim Jones on September 18, 2012, 5:44 pm
BMW 1.5-litre BMW TwinPower Turbo 3 Cylinder Engine

BMW has released the preliminary details on a all new gasoline engine. Powering the BMW Concept Active Tourer is a new cutting-edge 1.5-litre engine with BMW TwinPower Turbo Technology. Derived from the multiple award-winning 6-cylinder engine with BMW TwinPower Turbo Technology, it combines the latest generation of High Precision Injection with the fully variable valve control system VALVETRONIC and ultra-modern turbocharging. BMW TwinPower Turbo Technology will be used in all power units of the BMW Group's Efficient Dynamics engine family in the future - not least because it does not depend on total capacity or number of cylinders. The new 3-cylinder engine in the BMW Concept Active Tourer is one of the first representatives of this new generation of engines. The compact in- line engine constitutes an exemplary combination of dynamic performance and efficiency.

The new BMW TwinPower Turbo 3-cylinder offers character-specific benefits: running smoothness, revving power, spontaneous response and a dynamic, sporty sound. Since there are no first and second-order inertia forces, it offers an especially high level of comfort in terms of noise and vibration. The level of roll torque is lower than that of a 4-cylinder and is compensated for by a single counterbalance shaft. Among other things, this helps keep the engine extremely smooth-running in the low engine speed range, too.

BMW TwinPower Turbo Technology
BMW TwinPower Turbo technology combines variable load control, direct fuel injection and turbo charging, specifically configured to suit each individual engine. Thus both efficiency and dynamics are increased in equal measure. An important feature of the petrol engines is the VALVETRONIC variable valve control system. Comparable to a highly efficient dimming system, it works almost entirely without losses, controlling all of the cylinders simultaneously and ensuring that extremely low fuel consumption and emission values are achieved. In addition to the gains in efficiency, it also noticeably improves the responsiveness of the engine.

BMW Group's Efficient Dynamics Engine Family
With the introduction of the new Efficient Dynamics family of engines, TwinPower Turbo technology has become the common feature uniting all of the brand's petrol and diesel engines. The high degree of commonality, a term which refers to the large number of identical components within the engine family, ensures ongoing, sustainable development of the full range of power units. In addition, the BMW Group has now created the conditions necessary to be able to offer even more body derivatives in future. The new engine concept will allow considerable savings to be made in development, integration and production, at an increased level of quality.

The new family of engines is based upon optimized cylinder modules, each with a capacity of about 500 cc, designed for thermodynamic efficiency, smooth, quiet operation and high-enjoyment - perfect for powering passenger vehicles. With the new three, four and six-cylinder engines, the BMW Group provides a range of engine capacities from 1.5 to 3.0 litres, thus adequately servicing a model portfolio consisting of very large volumes.

This new family of engines celebrates its premiere with a turbocharged three-cylinder engine of 1.5 litres. The compact in-line engine has the same genes as the six-cylinder and impresses with its remarkable smoothness.

The BMW Group has rounded out its range of engines in a unique way, adding a member at the bottom of the hierarchy. The new modular engine system exhibits a high degree of commonality between the petrol and diesel engines. Overall, the number of identical parts used in engines powered by the same type of fuel climbs to 60 percent, while the level of structural similarities between petrol and diesel engines is around 40%. Because in future, petrol and diesel engines will be produced on the same production line for the first time, the production process itself will be significantly more flexible.

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5 responses to The All New 1.5-litre BMW TwinPower Turbo 3 Cylinder Engine

mr_clueless commented:
September 19, 2012, 10:03 pm

How long before we get to a single cylinder engine?
Tom K. commented:
September 20, 2012, 12:28 pm

Originally Posted by mr_clueless View Post
How long before we get to a single cylinder engine?
You must have missed this one:

mr_clueless commented:
September 20, 2012, 1:15 pm

Perhaps I should have clarified -- how long before we see a single cylinder 500 cc engine putting out 400 hp!
cwsqbm commented:
September 20, 2012, 2:03 pm

Originally Posted by mr_clueless View Post
Perhaps I should have clarified -- how long before we see a single cylinder 500 cc engine putting out 400 hp!
Never, at least for street use on gasoline. That'd be 800 hp/L, which is only made by Top Fuel dragster engines running silly amounts of nitromethane in engines that last up to 5 seconds at fuel throttle.

A more likely future would be a tiny 500cc engine making 50hp to charge the batteries for long trips (it'd be enough for a sustained 80mph in many cars), while the car is driven by a 400hp electric motor for stop-n-go fun.
mwagner1 commented:
September 21, 2012, 10:24 pm

If it ever arrives in the US, watch this car disappear from the North American market as quick as the old 318i's did years ago as those owners were constantly spanked by the hopped up rice burners from Honda, Subaru and Nissan....