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Volvo Trucks D13 engine with turbo compounding improves fuel efficiency up to 6.5% and delivers more torque

Volvo Trucks North America is adding a turbo compounding option for the Volvo D13 engine. By converting wasted heat energy, the 13-liter D13 with turbo compounding improves fuel efficiency by up to 6.5 percent%, while also delivering up to 100 extra lb-ft of torque for improved performance.

Turbo compounding increases fuel efficiency by converting wasted heat energy from the exhaust into useable mechanical energy that is returned as extra torque to the crankshaft of the engine. This additional torque allows the Volvo D13 with turbo compounding to improve performance and efficiency at the same time.


The Volvo D13 with turbo compounding will be available in two HP ratings— 25 and 455— in combination with three torque management packages—XE-Economy, XE-High-Torque and XE-Adaptive Gearing— giving customers flexibility to achieve improved fuel efficiency. The D13 with turbo compounding optimizes fuel efficiency for steady state, long-haul applications where downspeeding drivelines thrive.

In addition to turbo compounding, several other improvements were made to the D13 engine to boost efficiency, improve serviceability, reduce noise, and vibration. New shimless rockers reduce maintenance time for valve adjustments, while a proven common rail fuel system helps cut noise and vibration in the cab. The engine also features a new wave piston design to help improve combustion efficiency through a higher compression ratio and improved flame propagation resulting in lower soot output.

The Volvo D13 with turbo compounding will be available in mid-2017 as an option on Volvo sleeper models spec’d for long haul applications.

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