The Wärtsilä 25 ammonia engine, which is available as part of the Wärtsilä 25 engine platform, was developed based on ...

Technology group Wärtsilä’s 4-stroke engine-based solution for ammonia fuel now delivers higher than ever levels of efficiency ...

Finnish marine propulsion firm Wärtsilä has announced that its four-stroke ammonia engine now achieves up to a 90% reduction in GHG emissions compared to diesel engines. This breakthrough follows ...

Researchers at the Chinese Academy of Sciences have taken a significant step forward in quantum technology, creating an ...

When Toyota invited us to its North American headquarters for an event this week that included the global reveal of a new ...

Wärtsilä added that this is nearly three times lower than the default methane slip factor of 3.1%, specified in the FuelEU Maritime and IMO Lifecycle Guidelines for Otto-cycle four-stroke dual-fuel ...

Both engines have ditched the Otto-cycle setup in favor of a Miller-cycle, which keeps intake valves beyond bottom dead center. This means that when the piston reaches the bottom of its stroke ...

Image: Volvo DAVID SHEPHERD When it comes to modern engine history, you have to go way back to 1876, when German engineer Nicolaus Otto found a ... in 1882 with his four-stroke design, using ...

A four-stroke internal combustion engine operates on the Otto cycle, a design conceived by German-born Nicolaus August Otto as early as 1861 and eventually awarded patent number 365701.

Unlike its high-pressure cousin ME-GI, the ME-GA is an Otto cycle rather than a diesel engine. The ME-GA was targeted specifically at LNG carriers that use their cargo boil-off gas as fuel ...

Contrast to all modern combustion engines that run the four-stroke Otto cycle that typically features one compression and ignition phase, Porsche’s system adds another. The result is that in ...