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Post by captincvmn on Oct 21, 2020 11:26:05 GMT -5
content.sciendo.com/downloadpdf/journals/kones/26/2/article-p93.pdfOk, I’m sitting at work on lunch and my noggin is free roaming. I got thinking about something I’d heard about a while back, the 6-stroke engine. Two stroke is fairly simple, four stroke has more moving parts and six stroke has even more parts and a water tank. Some theorist say the steam cycle removes enough heat to delete the radiator and cooling fins but I dunno. I know steam power is a force to be reckoned with. Thoughts?
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Post by aeroxbud on Oct 21, 2020 13:48:16 GMT -5
I just don't like the sound of injecting water into a combustion chamber.
I know it said improved fuel efficiency. But I would find it unlikely to be cost effective compared to the new generation of three cylinder turbo petrol engines. Which at the moment give the best combination of performance and economy.
Interesting idea though.
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Post by 90GTVert on Oct 22, 2020 9:54:02 GMT -5
At first glance, I thought how is that going to make more power with a cylinder pressure that's weaker on the steam cycle, but a 4T is sort of a 2T that misfires every other revolution. They've improved the idea with a 6T so now it only misfires every third revolution. If they put a 6T into a scooter, it may make nearly 2/3 the power of a 2T with more stuff to fail and a water tank and other weight adders. Yeah, I know. This isn't really about scooters... but everything should be IMO. I really don't like electric very much because I find it dull without the engine noise, even though the immediacy of it is impressive. That said, I think given the choice of 6T vs electric, I'm buying electric. Still cool to see people thinking about ICEs.
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Post by jackrides on Oct 22, 2020 13:24:18 GMT -5
That's different. And that is frequently good. If the parts can handle the thermal shock, why not? Did you see if there were any follow up builds? I too am a 2T fan and not an anti pollution nazi but I do enjoy breathing and the current sea level. Previous theory posts here showed that unburned fuel/air is the largest contributor to 2T emmissions and named a study (which I'll post here when I can find it) that explained in undestandable words how the different systems of 'power valves' worked and improved power band while reducing emissions. Sure does add parts and require regular, every ? hours, disassembly and cleaning, but it is the most used system on 2T mx bikes.
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