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The Quasiturbine, the new rotary engine of the 21st Century

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Old Mar 9, 2006 | 05:49 PM
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The Quasiturbine, the new rotary engine of the 21st Century

Anyone seen the Quasiturbine website, http://www.quasiturbine.com/
Check this out and pen your thoughts here. Is it for real?
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Old Mar 9, 2006 | 06:21 PM
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I've heard of this before. There is a great explanation here:

http://auto.howstuffworks.com/quasiturbine.htm
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Old Mar 9, 2006 | 06:50 PM
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it would be cool to see one of these work in person
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Old Mar 9, 2006 | 07:31 PM
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I think rollers running on the rotor housing wall is asking for trouble.
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Old Mar 9, 2006 | 07:56 PM
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oh, and I didn't see any side seals anywhere in the drawings, might be tough to make them work thru a pivot. hate to be a killjoy...
t
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Old Mar 9, 2006 | 09:09 PM
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looks like a rotary with a 4 sided rotor if ya ask me
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Old Mar 9, 2006 | 09:16 PM
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It's actually an amazing design... I read about it a little over a year ago and if they can get it to work in an automotive application, it's gonna be groundbreaking...
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Old Mar 9, 2006 | 09:21 PM
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I remember seeing that ..Fired up..and it shoots Flames Too!!..it was a small thing..and the guy put the fuel in and ...Flamage!..I can't for the life of me remember where though..(dammit..!)..Got that Brapp.Brapp sound too..
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Old Mar 10, 2006 | 01:35 AM
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I don't believe in all the values it claims are so good.

It doesn't make sense to me that an engine pulling high revs with photo compression with any set of bearings, carriages, rollers can magically not require oil lubrication on the outer walls/bearings/inner walls. Seriously, my bike chain and systems require lube every few months and it doesn't compress/burn at insane temps or go at 10,000 rpm
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Old Mar 10, 2006 | 01:45 AM
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Originally Posted by sar
I don't believe in all the values it claims are so good.

It doesn't make sense to me that an engine pulling high revs with photo compression with any set of bearings, carriages, rollers can magically not require oil lubrication on the outer walls/bearings/inner walls. Seriously, my bike chain and systems require lube every few months and it doesn't compress/burn at insane temps or go at 10,000 rpm
It's actually very possible... Friction is nothing more than motion vs. drag... Reduce the drag and you reduce the friction... Reduce the friction and you reduce the heat... Reduce the heat, and you reduce the need for lubrication... You see where I'm going with this?

Just depends on the design of the bearings... I would hope a little more research went into this than say a bike chain for instance...
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Old Mar 11, 2006 | 08:29 AM
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I agree, too many internal moving parts for me to beleive that it would very reliable. You have to keep all those pivots and bearings cool and moving. Metal + heat = expansion so the tolerances would have to be pretty loose to keep everything from locking up after you've been driving for a few hours. I guess you could have a sealed, refrigerated engine comparment and run liquid nitrogen thru the engine for cooling instead of a 50/50 mix of water and antifreeze, sorry can't spell polyethelene glycol.

I am glad to see that the next evolution of the rotary engine is being investigated, it wasn't patented until 1996, just 10 years ago. After all it took the Japanese to perfect Dr. Wankel's engine. Interesting idea
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Old Jul 4, 2006 | 11:10 PM
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It does require oil lubrication. The pneumatic prototypes require an oil can to squirt oil in every once in a while (between operations). It can be made oil free with ceramic bearings; so can a Wankel. It's supposed to need little cooling, so air cooling is a viable option. For the pneumatic prototype the guy squirts water on the housing every once in a while (while it is running).
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