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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 will introduce a groundbreaking new diesel engine in 2020

Mazda is preparing to introduce its first series-produced electric car, but it's not sending the diesel engine to the automotive graveyard. The company remains committed to turbodiesel technology, and it will take its efficiency to the next level when it introduces a new range of engines in 2020. "We are sticking to diesel engines. In 2020, we have a new approach to diesel engines. We will show you how clean and very efficient diesel engines can be," pledged Christian Schultze, the head of research and development for Mazda's European division, in an interview with British magazine Autocar. He declined to provide specific details about the breakthrough that made a cleaner, more efficient diesel engine possible. Asked about how the engine compared to SkyActiv-X, the carmaker's newest and most innovative gasoline-powered engine, he pointed out "there are not so many differences between [gasoline] and diesel." His announcement falls in line with Mazda's belief that it's crucially important to consider real-world emissions over the life cycle of a car, not just local emissions. The company has realistically stated the internal combustion engine -- whether it burns gasoline or diesel -- will "continue to be the base power for 85 percent of all cars up until 2035." It might join forces with a 48-volt electrical system, or it might be part of a plug-in hybrid drivetrain, but it will still be around in 15 years. To that end, it's important to keep improving the technology, and not to prematurely pen its obituary.  "We hope governments wake up and see that electrification is one way but there are others, too," Schultze concluded, adding that SkyActiv-X is a step in the right direction. Mazda will release more details about its next turbodiesel engine in the coming months, but it's too early to tell whether it will available in the United States, where demand for oil-burning cars has hit rock bottom. As of 2019, the only diesel-powered Mazda sold in America is an upmarket variant of the CX-5 (pictured). Auto News Mazda Diesel Vehicles

2015 will be the biggest year ever for cars at CES

Like the SEMA Show, major automakers are paying increasing attention to the CES, with 2015 expected to be one of the most auto focused yet. Ford, Volkswagen, Toyota, General Motors, Hyundai, Mazda, Audi, BMW and Fiat Chrysler Automobiles will all be in attendance when CES 2015 kicks off next week, taking up a record-breaking 165,000 square feet of space at the Las Vegas Convention Center. "We've come a long way from a single car on a carpet," Ford's Alan Hall told Bloomberg. Unlike SEMA, or a more traditional auto show, like the upcoming festivities in Detroit, CES doesn't necessarily focus on entire cars or the way they perform, but on the way our technology will interact with vehicles, and in how those vehicles will deliver information to drivers. "CES has become a major launch point for a lot of the big automakers," IHS tech analyst Mark Boyadjis told Bloomberg. "CES is a way for them to get on a global stage for technology." As for what kind of wares automakers will trot out in Las Vegas, we already know that BMW will show off an autonomous i3 electric car that can navigate its way through a multistory car park and can be hailed via a smartwatch app. According to Bloomberg, Hyundai will show off its own smartwatch app for the Genesis sedan, while Audi and Mercedes-Benz will show off autonomous vehicles next week. Automakers won't be the only companies looking to capitalize on CES. Tech firms, like chipmaker Nvidia, are becoming increasingly involved in the automotive game and will be in town showing their wares off to OEMs. "Two years ago, our booth would have been filled with PCs and people playing video games," Danny Shapiro, Nvidia's senior director for automotive business, told Bloomberg. "This year we made a strategic decision to shift the focus of the booth on automotive and de-prioritize some of the other things." Needless to say, you can expect to see a lot of news out of Las Vegas come next week. Stay tuned. News Source: BloombergImage Credit: Julie Jacobson / AP CES Audi BMW Chrysler Fiat Ford GM Hyundai Mazda Toyota Volkswagen Technology CES 2015