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 ...

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 ...

Scientists have developed a new combustion strategy for ammonia-fueled engines, hitting a 99.1% ammonia energy substitution ...

Diesel’s on the outs in Europe, and EVs aren’t ready for prime time. Skyactiv-X seems, at this juncture, a hedge bet against both aspects. EV infrastructure lags massively behind our petroleum ...

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 ...

Car manufacturers are delving deep into their boxes of tricks to make internal combustion engines more efficient. Infiniti unveiled a variable compression ratio engine last year, and hybrid technology ...

The compression ignition Skyactiv-X engine will power the new Mazda 3. The Japanese automaker has begun testing the first mules for the next-generation Mazda3, featuring the company’s new ...

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 ...

A homogeneous charge compression ignition (HCCI) gasoline engine has been something of a holy grail for internal combustion engineers for decades, promising the fuel economy of diesel engines but ...

Homogeneous charge compression ignition (HCCI) engines combine a diesel's torque and fuel efficiency with a gas engine's cleaner emissions. The HCCI technique has been a goal of automakers since the ...