Tag: hcci

By on August 9, 2017

2017 Mazda 3 - Image: MazdaMazda announced on August 8th what had long been rumored. The small Japanese automaker has successfully overcome the remaining issues which held at bay mass production of gasoline compression ignition.

Essentially, Mazda’s Skyactiv-X engines, due first in the next-generation 2019 Mazda 3, is intended to bring diesel-like ignition to small, supercharged four-cylinder engines, along with diesel-like fuel economy. However, the gas-fired Skyactiv-X engines will be wildly cleaner than diesel powerplants. Mazda has said in the past that these HCCI engines will likely limit the need for continuously variable transmissions. We also learned, with Mazda’s latest pronouncement, that the company’s Skyactiv-X engines will be significantly torquier than their Skyactiv-G predecessors.

If Mazda can live up to its pronouncements — the company says the engines are “still under development and figures are subject to change” — it’ll be a win for both the environment and driving enthusiasts. And because Mazda also claims a 20-30-percent improvement in fuel efficiency, it’ll be a win for your bank account, as well.

We wanted to see exactly where Mazda’s alleged fuel savings will put Mazda’s current products on the EPA’s miles per gallon scale, so here are the results of some quick math. (Read More…)

By on June 15, 2017

2017 Mazda CX-9 2.5 Turbo - Image: MazdaFull autonomy by 2020? An all-electric automotive portfolio by 2025? Not at Mazda, where deputy general manager for product, Kenichiro Saruwatari, says the internal combustion engine will be a part of Mazda’s lineup for at least another three decades.

“We need to have the internal combustion engine,” Saruwatri told Motoring. “Even beyond 2050 we will still utilise the combustion engine.”

But just because Mazda’s plans for the future aren’t limited to hybrids, EVs, and fuel cell vehicles doesn’t mean the engines under the hood of your 2050 Mazda CX-5 will resemble the engines of today. (Read More…)

By on January 16, 2017

mazda skyactiv

While it wasn’t the only car company to make use of a rotary engine, it was certainly the only one to be competitive with them when pistons and pushrods would easily have sufficed. However, those days are gone. Mazda’s SkyActiv technology is well suited for squeezing out an engine’s true potential, but it doesn’t feel particularly quirky or unique.

That could change with the company’s second generation of SkyActiv engines. Mazda is one of only two automakers planning to introduce a motor with homogenous charge compression ignition (HCCI) sometime next year. If you’re unfamiliar, that’s a direct-injection gasoline-powered motor that uses compression, not spark, to ignite fuel — something typically reserved for diesel powerplants. (Read More…)

By on January 8, 2014

skyactiv-g_main_ttl_ovr

While other automakers explore hybrids and new tech in their pursuit of better fuel economy, Mazda is concentrating on refining the more than century old internal combustion engine. The automaker told Automotive News says that it expects to achieve 30% better mileage with its next generation of ICEs than the fuel economy of its relatively new line of Skyactiv engines currently being rolled out. Called Skyactive 2, the next gen gasoline and diesel engines will debut around 2020, according to Mitsuo Hitomi, who heads Mazda’s powertrain development. “If we want to dramatically improve fuel economy from here, the only route is through lean burning,” Hitomi said at briefing at Mazda’s Yokohama technical center. (Read More…)

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