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The 1.4-liter TSI gasoline engine from Volkswagen was awarded an “Engine of the Year Award” for the seventh consecutive time in the 1.0 to 1.4 liter displacement category.
This makes the 1.4-liter TSI the most successful engine in the 15-year history of this international engine technology competition.
In addition, Volkswagen received the coveted “Best New Engine Award” for the TSI technology in combination with automatic cylinder deactivation (ACT). This award recognizes the best engine development of the past 12 months.
Since 2006, Volkswagen has received a total of 12 trophies from the “Engine of the Year” jury for the constantly enhanced 1.4-liter TSI engine with the internal designation EA 211 – seven class victories, two overall victories, two “Best New Engine” awards and one “Green Engine of the Year” award.
The committee, which is made up of 87 international trade journalists, has given the TSI technology a historic string of victories.
At the same time, Volkswagen is launching into a new era of engine production with its latest innovation – the TSI with ACT cylinder deactivation.
The Wolfsburg-based company said it was the world’s first manufacturer to introduce active cylinder management (ACT) in the TSI four-cylinder last year – a technology that until then had been more familiar in large eight- or twelve-cylinder engines. Active cylinder management made its debut in the European market Polo and Golf. Temporary shutoff of the second and third cylinders – in conjunction with an economical style of driving – reduces fuel consumption by over 0.5 liters per 100 kilometers.
Even with two cylinders the 1.4 TSI is said ti run just as quietly and with low vibration as with four active combustion chambers. All mechanical switchover processes take place within one camshaft rotation; depending on engine speed this takes between 13 and 36 milliseconds. Accompanying interventions in ignition and throttle valve processes smooth the transitions.
Altogether, the components of active cylinder management weigh just 3 kilograms. Their actuators, the camshafts and their bearing frames are integrated in the cylinder heat; two low-friction bearings reduce shaft friction.
Important to know: only with the TSI concept – gasoline direct injection plus turbocharging – is cylinder deactivation even conceivable in the form being implemented today.
Compared to its predecessor, fuel consumption and CO2 emission values of the TSI engines were reduced by 9 percent in part also by such measures as reducing internal friction, lowering weight and optimizing thermal management. The savings potential is as much as 15 percent in conjunction with the active cylinder management (ACT) feature.
Volkswagen said it is the global leader in charging strategies for engines with direct fuel injection, and to date it has produced over 3.8 million TSI engines at five production sites worldwide.
The only VW vehicle currently sold in North America with the EA 211 is the Jetta Hybrid.