12-rotor wankel

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kevm14
Posts: 16014
Joined: Wed Oct 23, 2013 10:28 pm

12-rotor wankel

Post by kevm14 »

http://www.autoweek.com/article/2014022 ... /140229886

Runs out good, needs fuel injection.

<inflammatory comment>
Think of how much oil consumption that will have with all those rotors, also.
</inflammatory comment>
Adam
Posts: 2270
Joined: Wed Oct 23, 2013 9:50 pm

Re: 12-rotor wankel

Post by Adam »

kevm14 wrote: <inflammatory comment>
Think of how much oil consumption that will have with all those rotors, also.
</inflammatory comment>
Don't forget the coolant consumption. http://www.rotaryresurrection.com/2ndge ... amage.html
Fast_Ed
Posts: 550
Joined: Wed Oct 23, 2013 9:45 pm

Re: 12-rotor wankel

Post by Fast_Ed »

400 maintenance free hours doesn't sound like much, but maybe he's not talking about replacing all 36 apex seals every 400 hours? Who knows.

I really like the part about it being so smooth they can balance a glass of water on the engine. Most boats I've been on the motor shakes the whole thing and it's quite uncomfortable. That goes for the Yanmar diesel (obviously), the V8 (Chevy 350 I think), the volvo penta, and any outboard (obviously).

Interesting stuff on those destroyed rotaries. I guess I never really thought much about how rusty that iron rotor could get.
kevm14
Posts: 16014
Joined: Wed Oct 23, 2013 10:28 pm

Re: 12-rotor wankel

Post by kevm14 »

I'm not entirely convinced that the engine is 100% of the contributor for NVH on a boat. You have the exhaust which can create resonances, the drive system, prop, etc. Based on car experience, 90 degree V8s are fairly smooth...
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