A team of engineers from the Polytechnic University of Valencia has developed a new diesel engine with higher efficiency, lower fuel consumption and lower emissions, less than 20% of the current European regulations.
Engine performance has been improved through the use of variable compression ratios, optimization of thermal management and the development of new filters for nanoparticles in exhaust gases, the researchers said..
The proposed solutions are quite affordable and can be easily integrated into the motors of new vans, buses and cars..
The most difficult task for the team was to optimize the performance of all engine systems in various driving situations..
Treatment systems that reduce emissions are very sensitive to factors such as exhaust gas temperature, which varies greatly depending on the type of road, driving mode and weather conditions..
The demonstration was held in Graz (Austria) on two cars: one represented classes D, E for freight and passenger transport, and the second was a passenger car.
In open trials, they both showed good results, both in terms of reducing fuel consumption and reducing the number of pollutants smaller than 23 nm..
Has a British engineer invented the world’s most efficient engine?
We also previously reported on the development of the system electro-hydraulic valves, which saves 20% fuel by optimizing gas exchange.
text: Ilya Bauer, photo: Valencia’s Polytechnic University