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 ...

Compression ignition basically is the term that is used for describing the manner in which diesel engines function. It happens when intake air—which often is combined with recirculating exhaust gas—is ...

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 ...

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 ...

As Mazda and Infiniti have proved, there's a lot of innovation left in the internal-combustion engine. One of the more wild concepts we've seen is called Reactivity Controlled Compression Ignition ...

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 ...

Mazda Motor Corp., struggling to stay competitive in a world of electrified cars, said it would become the first automaker to commercialize a powerful, fuel-efficient gasoline engine technology that ...

Trying to mix gasoline and diesel in most engines will only lead to problems in the long run. But engineers have found a way ...