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Patent application suggests Mazda rotary return

A recent patent application by Mazda reveals that the Japanese automaker is still working on the rotary engine. This could in fact be the Skyactiv-R engine found in the RX-Vision concept from the 2015 Tokyo Motor Show. As with anything Wankel-related, nothing is certain until Mazda makes a production commitment. But this filing suggests that serious development is happening in Hiroshima. The 2011 Mazda RX-8 was the last rotary-powered car you could buy in America. Slow sales, poor fuel economy, and tighter emissions standards prevented Mazda from committing to a follow-up. But the fundamental principles of the rotary - compact size and light weight - perfectly fit Mazda's Skyactiv ethos. (For an explanation of how rotaries work, click here.) In this new engine the intake port sits at the bottom of the engine with the exhaust port on top instead of the other way around. That allows for lower mounting, which improves a car's center of gravity. This rotary is also turbocharged. Putting the turbo up high helps ensure it doesn't get in the way of any body or chassis crossmembers. The implication of those claims is that somebody is thinking about how to put this engine in a car. There are other benefits as well. The short path from the exhaust port to the turbo ensures minimal turbo lag. It also allows for a close-mounted catalyst on top of the enigne, which will help emissions. Another innovation in this new engine is a triangle-shaped rotor that covers part of the exhaust port. This allows for different exhaust flow characteristics. The filing claims that that two of the four orientations allow for less airflow resistance in the exhaust port. As in previous Mazda rotaries, there are two spark plugs to manage ignition timing and combustion. But unlike in the 16X concept, Mazda's last public display of such an engine, the new rotary uses port fuel injection. Keep in mind this is only a patent application. A Mazda spokesperson refused to comment on future product, but commented "As we stated at the Tokyo motor show, Mazda is doing all that it can to bring a rotary to the market." In the meantime, keep your RX-7 prayer candles lit and hope for the return of the rotary before the end of the decade. You can bide your time by reading the entire application here. Related Video: Related Gallery Mazda RX-Vision Concept: Tokyo 2015 View 11 Photos News Source: USPTO via autoevolution Rumormill Mazda Performance rotary mazda rx7

2016 Mazda CX-9 caught on video

We already know from earlier spy shots that the second-generation Mazda CX-9 is advancing in development, but here's an opportunity to actually see the crossover on the road. The video shows the CX-9's rear, but wait 50 seconds for a good look at it in profile and from the front. The CX-9 is no longer wearing the same camouflage from the last spy photos, but this time it has more cladding to hide the lines. Even with the obfuscation, you can still get a sense of the general shape. The CUV largely looks like a stretched version of the CX-5, which is a great place to start. Rumors suggest the new CX-9 will debut in November at the 2015 Los Angeles Auto Show and to launch in 2016 for the 2017 model year. Power is tipped to come from a turbocharged, 2.5-liter Skyactiv four-cylinder, and all-wheel drive is expected to be available. Related Video:

We go Unplugged to celebrate Mazda Miata Month

Chances are good that you, loyal Autoblog reader, have long since chosen to follow us on Twitter and 'like' us on Facebook. (If you haven't, feel free to take a second and do so right now.) Anyway, if you're one of our social media posse, you might have already heard that we're smack dab in the middle of Miata Month. We've gotten Mazda to loan us a couple of MX-5 Miatas, allowing us to say a protracted, tear-filled goodbye to the current generation (NC) of the beloved roadster, just before it exits stage right and ushers in the next generation.
You'll see a few more Miata Month items here on Autoblog after we've said our final farewell, but we absolutely wanted to make sure we created some great video evidence of our month, as well. Right down below, then, in its unfiltered-audio splendor, is the Autoblog Unplugged version of the 2015 Mazda MX-5 Miata PRHT. Your author had a pretty great time wringing out the roadster for the creation of our short vid, and we really hope you dig listening along.