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Watch what happens inside a rotary engine

Since it looks like Mazda may very well revive the Wankel rotary engine as a range extender for electric cars, there's no better time to become reacquainted with the quirky internal-combustion engine. And there's hardly a better way to become reacquainted than by peering into a running rotary engine, which you can do with the video above. The video comes to us from the YouTube channel Warped Perception. The channel has already shown what happens inside a conventional internal-combustion piston engine by putting a clear cylinder head on top of a flathead engine. This new video shows off the rotary engine by adding a clear side to a tiny model-airplane engine, something that we weren't aware existed and are glad to know about now. Despite the tiny size, the engine is functionally almost exactly like the bigger versions you'll find in Mazdas from about 1967 to 2012. It has intake and exhaust ports on the edges of the rotor housing, and the triangular rotor swings about in a peanut-shaped housing. For maximum effect, jump to right around the 7:40 timestamp. This is the point at which a bit of acetylene is added to the air-fuel mix for a brighter flame. It's at this point that you can really see when the mixture combusts and how the pressure of the flame pushes the rotor to produce rotational motion. Each stage of the video does slow things down to make everything as clear as possible. Even if you already knew how rotary engines worked, it's still fascinating to watch, first because it's something you don't get to see usually, and also because of the engine's elegant simplicity. Related Video: Image Credit: YouTube / Warped Perception Weird Car News Mazda Technology Videos rotary rotary engine

Mazda planning not one but two new crossovers for U.S.

Mazda has already announced plans to unveil a brand new crossover at the Geneva Motor Show, but it turns out there's another one in the pipeline set to satiate the appetites of a crossover-mad U.S. market. Speaking at the Chicago Auto Show, Mazda North America CEO Masahiro Moro told reporters the brand has another model planned for production at the $1.6 billion plant under construction with joint-venture partner Toyota in Huntsville, Ala. It'll be "a new crossover SUV which is exclusively designed for the North American market," Automotive News quoted Moro as saying. While it'll be a different product from the one debuting next month in Geneva, the two vehicles will share some architecture. The company is reportedly still finalizing the concept for it. Currently, Mazda sells three crossovers in the U.S.: the subcompact CX-3, the compact CX-5 and the larger CX-9. Together, the three vehicles, which constitute half of the tiny automaker's vehicle lineup, posted sales of 195,778 for 2018, up 15.8 percent from 2017. They accounted for nearly two-thirds of the brand's total vehicle sales of 300,325. Production is expected to start at the new Alabama plant in mid-2021, Moro said, and add capacity for 150,000 units of crossovers. The plant is expected to employ up to 4,000 workers with a total capacity of 300,000 vehicles a year. Toyota plans to build the Corolla there alongside Mazda's crossovers. Mazda last week released the teaser pic shown above of its forthcoming new crossover headed for Geneva. It could be the next and slightly larger version of the CX-3, which will use the Skyactiv Vehicle Architecture that also supports the new Mazda3. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Mazda Hazumi Concept previews next Mazda2 in Geneva [w/videos]

The official photos of Mazda's Hazumi concept leaked out yesterday, but we have finally gotten to see it in real life at the Geneva Motor Show. Our view is that its Kodo lines looks as good on the diminutive car's sheet metal as they did in photos.
The Hazumi was designed to appear to be bursting with energy, and it seems to deliver. While Mazda refuses to actually say that this is the concept for the next Mazda2, it makes it clear that the little hatchback is "foreshadowing Mazda's next-generation subcompact car." We can all read between the lines.
Hazumi also introduces the new Skyactiv-D 1.5-liter diesel engine but details about it are scant at the moment. The specs for the engine are still unannounced, but the company promises that it is both very efficient and has lots of torque for its size. Mazda is also promising that its Mazda Connect infotainment system will be available in the car too. Scroll down for the brief press release a brace of videos that celebrate the tiny concept's arrival.