“It’s all part of our NoNOx™Concept”

Patent family 5 – (Publication: WO 2017/061917)
”Method for a diesel engine and diesel engine”

This invention concerns a method for minimizing emissions of nitrogen oxides (NOx) from a diesel engine, and a diesel engine operating according to this method. NOx emissions are a major problem for diesel engines in general, and the scandal which broke loose during the autumn of 2015 regarding “Dieselgate” concerned cheating with NOx emissions from diesel vehicles.

The method according to the invention has the advantage that NOx emissions are reduced at lower loads of the diesel engine, which is advantageous since lower loads are normally correlated with low exhaust temperatures, which in turn results in less than optimal operation of exhaust aftertreatment (SCR catalysts). Another advantage with the method according to the invention is that fuel consumption, and consequently CO2 emissions are reduced at lower loads of the engine. Technically speaking, the method uses a combination of freely controllable valves and variable compression.

For example, the technology in patent families 1-4 may be used.

This patent family presently includes granted patents in Australia, Brazil, Canada, China, EPO, India, Indonesia, Japan, Malaysia, Mexico, Sweden, South Africa, South Korea, USA, and one pending patent application in Thailand. The EP patent has been validated in Great Britain and Spain and has been registered as a Unitary Patent. (Updated 17 oct, 2024)

Further information: WO 2017/061917

Patent family 3 – (Publication: WO 2018/111167)
”Method for providing variable compression ratio in an internal combustion a diesel engine and actuator for said method”

This invention concerns a method and a device for providing variable compression in a diesel engine, which is one of the techniques used in patent family 5 to achieve lowered emissions. Patent family 3 thus complements family 5.

The patent family presently includes six granted patents (China, India Japan, Mexico, South Korea and USA) and pending patent applications in Brazil and EPO. (Updated 17 oct, 2024)

Further information: WO 2018/111167