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on the PP idea with a reed valve, what I'm thinking is two reeds which match against each other, and with a specific wieght to them, an dthe material near the hinge point being thinner than near the ends, this would ceate a reed valve that could respond nicely to the pulses at lower rpm, though a little restrictive, depending on thier length they could increase port velosity considerably too, at higher RPM they would sit flat against the port walls since the hinge area is weaker, and because they are weighted they woudl just never close, which woudln't hamper top end at all.
Thermal coatings are definitely promising.
another idea is to change the dimensions or the rotors, and increase the thinckness of the end housings to allow for better port designs with less sharp angles.
another idea for thermal efficiency is making the rotors wider, since if you have a rotor that was 1 inch wide it still has all the side housing into which it is losing heat, if you make it 4 inches wide, the side housinge will be dissipating proportionately less heat. now since you will be inducing more air into the rotor, you need the better thicker side housings 
I think the dimple of the rotor has much room for improvement, I think at the very instant the leading plug fires, there should be a bit of a brow on the dimple so that the flame front is directed to the ends of the rotors rather than just burning within the dimple. (hard to explain without a drawing), with this brow it may be possible to eliminate the trailing plug, assuming the leading plug is perfectly positioned and timed in relation to the brow
has anyone thought about a diesel rotary? the long stroke time favours a high RPM diesel!! diesels rarely rev over 3500 RPM since the fuel just doesn't burn fast enough, the rotary has a longer stroke time per RPM than a piston engine, then a peripheral port wouldn't matter since no fuel is entering... getting a compresstino ratio above to 16:1 while keeping a dimple in the rotor may be quiet tough, but the diesel would self lubricate the apex seals.. it would most likely be a good candidate for massive turbo boost (40 PSI) and a lower compression to keep the dimple for the flame travel, of course new housings which are seriously dowel pinned would be nessessary
in a diesel application with a peripheral port, the intake port closing would have to be early to keep the static compression to a point where it would start, unless you find a way to spool the turbo without the engine running (just kidding there)
Just think of a a 6000 RPM diesel engine (the rotor is only turning at 2000, plenty of time for a good burn) we might even be able to get it up to 8-9000, I figure with enough boost (which helps it burn faster) you'd be able to get more power per cubic inch than gas since preignition is nonexistant
now the cloud of smoke that thing would spew might be scarey 
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Do NOT under any circumstance do as I do, I decline all responsability and liability for those who copy what I do
Mechanics... Start what they finish
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14.10.2004, 01:44
