IRVINE, Calif.—Despite rumors to the contrary, the internal combustion engine is far from dead. Recently we’ve seen several technological advances that will significantly boost the efficiency of ...

Despite its critics and moves toward electrification, the internal combustion engine is not yet dead. Though its design for passenger vehicles may have begun to reach its apex with Mazda’s Skyactiv ...

You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an ...

Mazda has detailed the next-generation of its SkyActiv engine family, which will feature innovative compression ignition technology. While the new SkyActiv engine is still under development, Mazda ...

Mazda has revealed that it will introduce a new gas engine that uses compression ignition as part of its long-term tech development dubbed "Sustainable Zoom-Zoom 2030." Called Skyactiv-X, the new mill ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

Nautilus Engineering of Wichita, Kansas, is an engineering R & D consultancy and rapid prototyping organization with close ties to Wichita State, Kansas State, and Kansas State Polytechnic ...

Mazda's powertrain team has brewed up a fancy new engine that, like a diesel, uses compression to activate the combustion process. In a press release on the new tech, Mazda tells us just how ...

Mazda is officially putting its advanced Skyactiv-X gasoline engine on sale—at least in Europe. The engine is coming to the U.S. market later. The automaker has also made available the first official ...

COMPRESSION IGNITION is, by convention, strictly the domain of diesels. The sparkplug-less ignition of a fuel-air mixture does however hold some promise when applied to petrol engines, and General ...

In the race to field energy-efficient vehicles, don’t count out internal combustion technology just yet. GM recently debuted its homogeneous-charge-compression-ignition (HCCI) system in two drivable ...