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  • The new Volvo D13 With Turbo Compounding Pushes Technology and Efficiency in Trucking

The new Volvo D13 With Turbo Compounding Pushes Technology and Efficiency in Trucking

Volvo Uses Amazing Technology to Improve the Efficiency and Power of Its Latest Offering for Big Rigs

Brian Lohnes
May 5, 2016
Photographers: Courtesy Of Volvo
When it comes to the world of trucking, power and efficiency rule all. Sure, diesel prices are favorable now, but that doesn’t mean they always will be. Today’s truck buyers want the grunt of big-time torque to pull their cargo, and they also want those same powerful engines to sip fuel. Volvo Trucks heard those calls loud and clear and, in an effort to meet the rising expectations of its customers, is answering with a new version of its venerable D13 engine. The D13TC (turbo compound) will be offered as an optional engine for 2017 model-year rigs, and the company claims fuel efficiency increases of up to 6.5 percent, as well as power ratings that top 450 hp and 1,850 lb-ft of torque. A one-point bump in compression helps to add power, but an amazing new addition to the engine really changes the game. It’s called turbo compounding, and it may blow your mind.
The system Volvo uses on the D13TC is very interesting. It’s not the typical setup we’re familiar with, in which one turbo feeds the other. Instead, in addition to a single, fixed turbo, the system uses an additional turbine wheel that’s positioned in the flow path of the exhaust and connected to a fluid coupling, which turns a series of reduction gears until force is exerted on the crankshaft (via the flywheel). Volvo claims its turbo-compounding system can add as much as 50 additional horsepower to the engine. In simpler terms, imagine you’re pedaling a bicycle and there’s also a hand helping to shove the rear wheel along. That’s essentially what this system is doing in the D13TC.
Photo 2/3   |   001 Volvo D13TC Turbo Side View
The Volvo D13TC is one of the most technologically advanced engines ever used in North American trucking. With 455 hp on tap and 1,850 lb-ft of torque at less than 1,000 rpm, it is designed to be both powerful and very efficient.

The technology has been used in European Volvos for years, and now it comes to the U.S. for model year 2017. Volvo recommends the D13TC engine to customers who spend most of their time on the open road—not for trucks that primarily live the city life. This new engine is definitely another cool advancement in the universe of diesel technology!
SPECIFICATIONS
Engine: Volvo D13TC
Displacement: 13.0L 780ci
Engine layout: I-6
Power: 455 hp at 1,300 rpm
Torque: 1,850 lb-ft at 900 rpm
Bore x Stroke: 5.16 x 6.22 inches (131 x 158 mm)
Compression ratio: 17.0:1
Fuel delivery: Common-rail injection
Induction: Dual fixed/flywheel turbochargers
Aftercooling: Air-to-air intercooler
Cooling: Pressurized, closed-circuit liquid system
Oiling: Wet sump system with 38-quart capacity
Weight: 2,605 pounds (1,182 kg)
Photo 3/3   |   002 Volvo D13TC Intake Side View
These big engines have come a long way from the smoking two-strokes of years gone by. While you may not be able to fix them with a hammer and a hatchet anymore, engines like the Volvo D13TC can outlast, outperform, and outwork the old-timers by a wide margin. These are marvels of modern technology.

Sources

Volvo Trucks
336-393-2000
www.volvotrucks.com
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