Quote:
Originally Posted by Zeke
Ok. Fully understood. Thanks.
The list of benefits states no apex seals which I believe were the bane of the Wankel. Still, the mating surfaces have to see some wear, but not watching the first vid, IDK if that is addressed. Subsequent reading indicates 100,000 hours before overhaul. That's a long time as most of what it would be powering could be past its useful life well before that.
1000 RPM idle with a 25,000 redline. I rather think this is a low torque affair, but again a non-narrated video only serves to show exactly how the thing works, not how it performs.
There were never many details about Jocko Johnson's engine that was a circular affair called the Power Ring. His had 18 'cylinders' and it was supposedly a "3-cycle" operation. It was never actually built that I know of. His claims of power to size and weight were similar. 18 points of combustion suggests a lot of torque.
Johnson focused on the problems inherent to the reciprocal engine. Since he lived in the world of nitro powered piston engines, he wanted to eliminate cranks and rods. These things have worked for us for nearly a century and a half while many alternatives have never really changed anything. When you think about it, that isn't very logical.
The electric motor is perfect. The infrastructure and energy source is not.
I should bear the original video before commenting further.
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There are no mating surfaces and no seals wrt air/fuel system, the prototype does have a bad oil leak, just like the crank seals on 911s that often leak
seal is kept by tight tolerances and use of low expansion Tii components
sure electric is attractive but the e-cars are all very heavy and charging can be a real issue
currently hybrid is the way o go but even they are awfully heavy Prius comes in at 3100 to 3200#s a BMW X5m 6100#, X% 50e 5573#
heck my 4 Runner V8 is a comparatively svelte 4500#