Despite the constant touts about how the brand makes unique electric trucks, the Swedish automaker clearly remains an ardent supporter of internal combustion engine technology. In the nomenclature line of power units for the configuration of FH16 main tractors, a new super-powerful diesel engine, designated by the D17 index, appeared.
The news became known from a presentation held on the basis of the "home" Volvo campus in Gothenburg, where journalists were shown an all-new FH 16 prime mover with the aforementioned D17 diesel engine. Curiously, the D17 is the largest and most powerful diesel engine ever fitted to a Volvo truck. It is produced in three power options - 600, 700 and 780 hp.
Compared to the D16 diesel version it replaces, the advanced engine technology gives drivers maximum performance and, importantly, improved fuel economy over its predecessor.
Volvo sees the D17 engine as a clean, low-emission, high-fuel-economy option for diesel fleets currently operating in Europe. The developers assure that the new engine fully meets its mission with zero emissions.
Such a powertrain had to be developed in response to the new regulations regarding the increased length and weight of Class 8 trucks, which came into force across Sweden on 1 December 2023. Combination trailers with a total length of 34.5 meters and a total weight of up to 100 tonnes (93 tonnes) are now permitted.
The Swedish government agreed with scientists who proved that using longer and heavier road trains would reduce energy consumption by up to 30% for individual vehicles and by 4-6% overall. These figures are valid for BEVs, hydrogen fuel cells, biofuels and diesel engines.
Six tractors pulling six single trailers, each with a total length of 16.5 meters, can be replaced by three FH16 780s, each pulling two trailers with a total length of 34 meters, resulting in a 27% reduction in emissions of CO2.
However, such combination tractors with trailers are only allowed on about 5,900 kilometers of the best and most modern roads out of Sweden's 100,000 kilometers of road network. However, everything points in the direction that soon there will be more such areas.
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The new engine will facilitate the operation of the transport with such a load. As Volvo Group's director of ecology and innovation Lars Martesson pointed out, the engine is equipped with an efficient turbocharger. To further optimize the combustion process of the D17, the developers rely on Volvo's highly successful and patented wavy piston design.
The result is a cleaner engine that actually delivers more power and less emissions than the D16 engine it replaces. The D17 engine is certified to run on biodiesel at all power outputs. The new injection system provides optimal fuel economy, and the increased maximum pressure in the cylinders ensures high power output.
„The brake“ The D17 engine's power output is also increased throughout the speed range, Martensson said. This allows for quick gear changes and results in less wear on the brake pads and discs, while also allowing for more efficient descent.
Trucks of this record length are equipped with StoneRidge MirrorEye rearview cameras. The system includes rearview screens mounted on the front pillars. These screens can be configured to show different angles and vantage points behind the truck.