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    1. 03-18-2017 12:58 AM #1
      Mazda recently filed a patent showing an EV with Rotary engine. I suspect this is direction they would go in if the RX-Vision concept becomes reality.

      http://www.autoblog.com/2017/03/17/m...e-extended-ev/

      "The second patent is for an engine start-and-stop system, but specifically for rotary engines. The system is designed to shut off a rotary engine when not needed, much as modern piston engines do. It also stops the rotor in a position that closes the intake port to ensure no fuel or exhaust emissions slip out through the intake tract. This is necessary since there are no valves in a rotary, and air and exhaust come through ports that are "opened" and "closed" by the rotor itself. The patent also describes the possibility of firing a spark plug after the fuel has been cut to eliminate any leftover fuel emissions. This system would theoretically improve a rotary engine's fuel economy and emissions significantly, which would be a boon as those are two of the rotary's major weaknesses."

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    3. Member
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      03-18-2017 08:56 AM #2
      PR move? Mazda puts out a the rotary story ever couple of years.

    4. Geriatric Member BRealistic's Avatar
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      03-18-2017 11:32 AM #3
      Quote Originally Posted by driveareliablecar View Post
      PR move? Mazda puts out a the rotary story ever couple of years.
      http://www.caradvice.com.au/500011/m...icles-by-2019/

      Mazda has confirmed that it will introduce an electric vehicle by 2019, as it sees the sales of electric cars comprising around 10 per cent of the global car sales by 2020.

      Speaking to Australian media at today’s Los Angeles motor show, the company’s head of research and development, Kiyoshi Fujiwara, said that as the cost of battery technology comes down, the potential for EVs grows.

      The Japanese brand is likely teaming up with Toyota for a low-volume electric vehicle, with an option for a range-extender variant using a small rotary engine.

      Didn't Audi have a concept hatchback with un pequeña Wankel range extended in the boot?


      Range Extender... it seems with the R.E., tiny packaging is more important than efficiency.
      If Mazda can make a tiny Wankel R.E. package that is powerful and reliable, I can see it being very appealing to all brands moving towards EVs wanting to at least offer an R.E. option even if not the most efficient with gas.
      That being said- a Wankel designed to just run at one rpm/max power could be surprisingly efficient.
      IIRC- Mazda Wankels were more efficient the closer to WOT and max power rpm.

      Looks like Mazda had a test driveable Mazda2 EV prototype with W.R.E. several years ago.
      http://www.caradvice.com.au/261593/m...w-quick-drive/
      Last edited by BRealistic; 03-18-2017 at 11:51 AM.

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      03-18-2017 11:59 AM #4
      Yeah I was wondering about the Audi car as well. Did they not patent that? Or maybe it was different enough.
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      03-18-2017 12:06 PM #5
      Quote Originally Posted by Elite_Deforce View Post
      Yeah I was wondering about the Audi car as well. Did they not patent that? Or maybe it was different enough.
      Mazda's apex design improvements in the 70s made the Wankel even usable.
      Who owns the Wankel license now?

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      03-18-2017 12:09 PM #6
      Quote Originally Posted by BRealistic View Post
      Mazda's apex design improvements in the 70s made the Wankel even usable.
      Who owns the Wankel license now?
      Looks like a lot of people.

      https://en.wikipedia.org/wiki/Wankel...ments_for_cars
      Quote Originally Posted by Sonderwunsch View Post
      People have been complaining about modern BMWs lacking steering feel so they are adding torque steer.
      Quote Originally Posted by Ernie McCracken View Post
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      Quote Originally Posted by BRealistic View Post
      I find it ironic that long time Euro brand fans would assume long term reliability issues would destroy any love of a unique product.

    8. 03-18-2017 12:21 PM #7
      They just need to stop wasting resources on the rotary. They're spending way too much time looking backwards which probably explains why the cars rust out like it's 1972

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      03-18-2017 12:25 PM #8
      Quote Originally Posted by Nicefeet View Post
      They just need to stop wasting resources on the rotary. They're spending way too much time looking backwards which probably explains why the cars rust out like it's 1972
      First practical EV: 1859
      First practical Wankel powered car: 1971

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      03-18-2017 12:40 PM #9
      Quote Originally Posted by driveareliablecar View Post
      PR move? Mazda puts out a the rotary story ever couple of years.
      Are any new car buyers still interested in rotaries? If this is a PR move, Mazda should think about replacing their PR team.

      Honestly, this probably comes up every few years, because there's probably a few engineers at Mazda still want to fiddle around with rotaries.

      I think Mazda burned the last of their rotary customers with the renesis.
      Last edited by Dubveiser; 03-18-2017 at 12:43 PM.

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      03-18-2017 01:19 PM #10
      Quote Originally Posted by Dubveiser View Post
      I think Mazda burned the last of their rotary customers with the renesis.
      Nyet.

      I find it ironic that long time Euro brand fans would assume long term reliability issues would destroy any love of a unique product.
      Last edited by BRealistic; 03-18-2017 at 01:27 PM.

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      03-18-2017 06:11 PM #11
      Quote Originally Posted by BRealistic View Post
      Nyet.

      I find it ironic that long time Euro brand fans would assume long term reliability issues would destroy any love of a unique product.
      Sig'd, unless you have objections.
      Quote Originally Posted by Sonderwunsch View Post
      People have been complaining about modern BMWs lacking steering feel so they are adding torque steer.
      Quote Originally Posted by Ernie McCracken View Post
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      Quote Originally Posted by BRealistic View Post
      I find it ironic that long time Euro brand fans would assume long term reliability issues would destroy any love of a unique product.

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      03-18-2017 06:28 PM #12
      Quote Originally Posted by BRealistic View Post
      I find it ironic that long time Euro brand fans would assume long term reliability issues would destroy any love of a unique product.
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      03-18-2017 08:59 PM #13
      Quote Originally Posted by Nicefeet View Post
      They're spending way too much time looking backwards
      Dude, two-strokes are making a comeback.

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      03-19-2017 08:13 AM #14
      Quote Originally Posted by Nicefeet View Post
      which probably explains why the cars rust out like it's 1972
      Not anymore, thankfully. I'm keeping a close eye on mine.

      I'm very much looking forward to a Mazda EV. I'd rather not pollute the air in my daily (weekend machine is another story) but I'd also like not to be bored to death in a Toyota or blow my paychecks on i3/eGolf issues.
      Last edited by worth_fixing; 03-19-2017 at 08:17 AM.
      http://badges.fuelly.com/images/sig-metric/286588.png
      Any car which holds together for a whole race is too heavy.

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      03-19-2017 08:17 AM #15
      Quote Originally Posted by BRealistic View Post
      First practical EV: 1859
      First practical Wankel powered car: 1971
      Didn't the Ro80 and the Mazda Cosmos come out in the 60s?
      Typical forum guy with busted third-hand cars.
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      03-19-2017 08:20 AM #16
      Quote Originally Posted by 88c900t View Post
      Didn't the Ro80 and the Mazda Cosmos come out in the 60s?
      You're right :

      The very first production car equipped with a Wankel engine was the NSU Spider. [...] Production was limited to just under 2,400 cars between 1964 and 1967, but due to the nature of small sports cars, few acquired enough miles in this time to highlight the design’s intrinsic flaws.


      Source : https://petrolicious.com/rotary-powered-car
      http://badges.fuelly.com/images/sig-metric/286588.png
      Any car which holds together for a whole race is too heavy.

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