Skyactiv is Mazda\'s blanket term for the latest and unique technologies for its new generation of vehicles starting with the CX-5, which was launched here last year.
One such aspect is the internal-combustion engine. The Japanese carmaker believes that the energy efficiency of current engine technology is only at 30%. So, instead of putting its resources in creating hybrid or electric vehicles, Mazda has looked to refine the internal-combustion engine even further.
Here, we look at the gasoline and diesel engines that Mazda has imbued with its Skyactiv technologies.
Mazda\'s highly efficient direct-injection gasoline engine boasts of having the world\'s highest compression ratio for a mass-produced powerplant at 14:1, higher than that of a Ferrari 458 Italia\'s mill (12.5:1). Its other notable features are:
* Dramatically improved ignition and combustion resulting in improved fuel economy and increased torque output of 15%;
* Better performance due to its increased torque output from low to medium engine speeds; and
* A racing-inspired 4-2-1 exhaust system, increased displacement, multi-port injectors and other innovations to eliminate engine knocking.
Mazda\'s latest-generation clean-burning diesel engine supposedly passes stringent global emission standards without the need for expensive catalysts to lower pollutants. Some of its new features are:
* 20% lower fuel consumption, thanks to an extraordinarily low 14:1 compresion ratio;
* New dual-stage turbochargers that offer smooth response and high precision from low to medium revs as well as high torque output from low to high revs; and
* Compliant with Euro 6 emission standards without needing costly catalysts to lower pollution.
\"Our Skyactiv technology can provide top-level fuel efficiency at very affordable pricing without compromising the driving pleasure,\" said Mazda Motor R&D director and senior managing executive officer Hirotaka Kanazawa.
Photos by Patrick Everett Tadeo