Petrol and diesel technologies will be combined in to a single engine type in just a decade from now, according to Mercedes-Benz. ‘That’s our wish,’ said Dr Thomas Weber, board member responsible for research, technology and development at Mercedes-Benz. ‘Step by step, the components of diesel and petrol engines are growing closer: the combustion process, common-rail direct injection, turbocharging. In the end, we believe this development will see the complete integration of the two engines into one type which combines the best of petrol and diesel.’
Weber said Mercedes is working on such an engine, without spark plugs, that runs on synthetic fuels. It has a compression ratio somewhere between the current petrol’s (circa 10.0:1) and diesel’s (roughly 18.0:1).
Internally, the new development is known as ‘diesotto’, a word that combines the names of Rudolph Diesel and Nikolaus Otto, the two German inventors of the diesel and four-stroke Otto-cycle petrol engines respectively.
‘By combining both, the savings are huge,’ Weber said. ‘You can imagine the advantages in investment and meeting emissions. This is our vision for the future.’