HarryMann

Billege,

My thouights entirely, very frustrated that Coates can't write it up in any language other than dummed down yukspeakfull of BS, nor open up a bit and let a real 3rd party outfit test anything they do... because I suspect this is the culmination of 70 years of work on rotary (cyl head) valves, since Aspin and Cross treid so hard to get to grips with it... Definitely looks like it holds more promise than any of those... as for 14,000 rpm 5-litre V-8s, just why quote such a stupid example, when what we need to see are BMEP and SFC curves... surely they must know that, being engineers?

Possibly the answer lies in being extrenmely nervous about their development being 'knocked off' - esp. as the US has a history of copying and ignoring others' patents, right back to the early Ricardo years with Henry Ford. Perhaps they are also valuing their licenses a bit too highly, as to get a biggie to bite and take it further, one has to look at the long term game, and that is a very few % (to use Ricardo's patents used to be very cheap, about 2.5% or less IIRC)

But overall, there is something really strange about the way they are holding back... and controlling any reports and photos, drawings etc. No way to get this accepted IMHO - If it's good, and copyrighted, they have nothing to worry about, and it DOES look like the best rotary valve yet -except of course the simplest ones, the piston controlled port and the single sleeve valve

Think you'll find that opening out the ports 'slows' gas speed, this is bernoullis theorem, or even simpler than that, continuity. Agree its not alwasy a good idea though