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Post by timpa136 on May 24, 2021 9:09:24 GMT -5
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Post by Framitron on May 24, 2021 21:50:14 GMT -5
I like it. It eliminates the centrifugal force loading on the Wankels tip seals. Its essentially the inverse of the Wankel architecture. Call it the..."Leknaw"? (Although Wankel invented this geometry as well so its still a "Wankel").
This geometry is on page 23 of Jan Norbye's 1971 wonderful book "The Wankel Engine". According to Norbye this geometry allows for compression rations in excess of 100:1. (But the pocket in the LP engine drops it down to a useful ratio)
But I'm not sure if this architecture solves any other problems. It still has the very long, skinny squish zone that will quench combustion of slow burning fuels leading to the typical unburned hydrocarbons. And with exhaust being ported right into the thin skeletonized rotor I cant imagine the rotor surviving unless its made of Inconel. And even if it was of Inconel it would still be so hot that lubricating oil on its flanks might be problematic. Anyone have thoughts about this? I cant really see if the rotor has side seals.
Either way, I wish them lots of luck making it mechanically *and* commercially successful!
Al
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Post by wayne on May 26, 2021 2:34:03 GMT -5
It is interesting and looks smoother than a wankel. Unless they're planning on running it on hydrogen though, I wonder about the payoff for any new tech internal combustion engine.
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Post by timpa136 on May 26, 2021 18:25:32 GMT -5
I share Als concerns, it might require a catalytic convertor larger than the engine. Yeah Wayne, i was thinking of a cooler burning fuel too, alcohol? Doesn't look like an oil cooled rotor either.  |
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Post by HGH 770N on May 29, 2021 4:29:08 GMT -5
Looks fantastic piece of engineering.
My thoughts are would not fuel temperature injected through get too hot and pre ignite ?
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