Is there a future in diesel engines?


The automotive industry is in the search for alternative, environmentally cleaner power plants for a wide variety of modes of transport, the old-good diesel engine of internal combustion remains a proven «workhorse». Especially when the conversation comes into a hard technique, he still turns out to be indispensable.

Can diesel transporting transportation of constantly tightened standards of environmental impact and human health? What solutions help him in this?

Every year, manufacturers of equipment produce cars that have the level of emissions and lower. We are not only about carbon dioxide (CO2), but also, in the case of diesel engines, also on nitrogen oxides (NOX). The current ecological standard of Euro-6 as the maximum permissible NOX emission rate sets 80 g per 1 km.

In the case of commercial diesel vehicles, the only way to achieve such indicators is to use exhaust gas purification systems. This step allows to reduce emissions of nitrogen oxides by 90-95%.

You can illustrate the work of such a system on the example of the Denoxtronic system developed and manufactured by Bosch. It works like this: a special measuring module receives data from the engine control unit (such as the number of revolutions and operating temperature). On their basis, an accurate amount of adblue special reagent is introduced into the flow of exhaust gases (this is nothing more than aqueous carbamide solution, or urea). As a result, ammonia is formed, reacting with nitrogen oxides and converting them to harmless nitrogen and water vapor.

Since 2004, when the first generation of Boschdenoxtronic was presented, and until mid-2018, the number of trucks equipped with this system exceeded a mark of 10 million.

According to Bosch forecasts, in 2030, approximately 75% of new passenger cars and low-tonnage trucks will still be equipped with internal combustion engines. Therefore, work on the improvement of gasoline and diesel engines should continue.