After having announced the D5 and D8 engines for stage IV/Tier 4F in 2012, the company is now finalising the work to complete its range of medium-duty engines. In 2014, these engines will be available for the lower emission stages II and IIIA too. Based on the 11-16 L engines, the new 5 and 8 L engines share the same base engine philosophy; an in-line 4-6 cylinder design with components such as turbocharger located on the right-side on all models.
All engines share the same electronics platform. Volvo Penta say this means that it is possible to communicate with the same protocol regardless if it is a 5L engine or 16L engine, or if it is a stage II version or stage IV. The technology choice for the new emission stages is an SCR system used extensively within the Volvo Group. Volvo Penta offers all necessary components from a variety of DEF-tanks, SCR-muffler sizes to wiring harnesses and cooling systems.
For the engines in the new medium-duty range the displacement is increased compared with previous versions and the base engine design is now more like the heavy-duty engines. The fuel system for the medium-duty engine platform will be certified according to ISO7840, which the company say will enhance safety. Taking all this into account Volvo Penta say it will be able to offer a complete program for industrial engines complying with all existing non-road emission stages.
