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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

Mazda CEO says rotary not viable, so don't look for a new one

We have some very sad news to report, rotor-heads fans: Don't expect a new rotary-powered vehicle anytime soon. This comes straight from Masamichi Kogai, the CEO of Mazda, which is the only company to ever market a commercially successful rotary-powered automobile in the world. The issue, as it has pretty much always been, is environmental.
While the Wankel rotary engine does indeed make a lot of power in a small, lightweight package, it does so while burning lots of fuel and emitting lots of noxious gases into the atmosphere, at least when running on gasoline. And that means the rotary engine will likely only ever be able to power niche vehicles. And that, in turn, means that it is very difficult to turn a profit on vehicles with rotary engines, particularly for a small automaker like Mazda.
"It has to be a viable commercial proposition. If we are going to adopt it, it has to be a product that can generate at least sales of 100,000 units a year. We have to be able to achieve a profit," said Kogai in an interview with Automotive News. Mazda sold 56,203 RX-7 models in the United States (the automaker's biggest market) in 1986. Sales of the RX-8 peaked in 2004, its first full year on the market, with just 23,690 units.

Here's what you had to say about the Tokyo Motor Show

We obsessively covered the 2017 Tokyo Motor Show. You, our readers, provided the color commentary. Read on and, of course, leave your comments below. Subaru Viziv Performance Concept: Remember the WRX concept they showed in 2013, and what the production version looked like in 2015? Pepperidge Farm remembers. wooootles 2 foot high wing on the trunk or gtfo :) sc0rch3d Mazda Kai Concept : Dear Honda, this is how you dynamically style a hatchback. Thank you. Dfelix70 Kudos to KODO design. There are so many things I love about this "Kai" car: the awesome split panoramic sunroof, the Jaguar-esque tails (sporting an "eyebrow up"... ala The Rock), a sleek family resemblance to the already beautiful CX-5 and CX-9. Seems suspiciously close to being a production ready Mazda3 — save for a few fanciful bits (door handles, mirrors etc). If it doesn't get too watered down by the time it hits the streets ... take my money! Randy Ross Mitsubishi e-Evolution Concept: As an 06 IX and 12 X owner, this is so upsetting. I will never buy this or care to give it another look. Hope you are glad you killed my favorite track-ready car to produce this electric junk. AcidTonic Picture the GT-R going away for a few years and coming back as an SUV. This is ridiculous. Surely someone in marketing could've came up with another cool name. Evo The Evo sedan is dead, whether this exists or not. I don't mind. Lada1200 Honda Sports EV Concept : I sure would like to see this "less is more" design aesthetic spread to their gas-powered production line. RustyShackleford Love it. I see glimpses of late 1970 Scirocco with Honda flair. Gintonics I just want ONE question answered in the affirmative, and that is... "RWD?" Henadenk AND A FEW FROM FACEBOOK: Toyota's press conference: Wake me up when they talk about the Supra. David Levinson Yamaha Cross Hub Concept: All I can think is modern day Brat, which has its own kind of charm. I'm assuming that it's a unibody design, but it seems happy to be its own thing rather than that crossover pretending to be a pickup called the Ridgeline. Would definitely take the Yamaha over the Honda, although I doubt it'll come to the states. Cole Henry Mazda Vision Coupe Concept: Face: KIA K7, Tail: Aston martin. Harold Shin A bit British, no? Jim Lykas Related Video: News Source: Honda, Toyota, YamahaImage Credit: Subaru, Mazda, Mitsubishi Auto News Green Tokyo Auto Salon Tokyo Motor Show Honda Mazda Mitsubishi Subaru Toyota 2017 tokyo motor show