elmerfud wrote:I've slept on a good design for 10 years, simply for the fact the any precision timing requires oscillating or momentary rotary motion. If you are deal with a tiny little pooppet valve, no inertia - so no problems.
However, if you are dealing with a long steel shaft with the friction of rubbing seals, also heat buildup??
You dont need a brilliant mathematical mind to realise these hurdles only become worse as the revs increase.
If you crack the code on intertia, friction, sealing and heat then I will the first to be awed by your invention.
I disagree with this. The sealing problems are not difficult. Because 1: The combustion gases still have viscosity. If your sealing gap (if there is one at all) is small enough and if there is another row of sealing especially the gasses will have to slow down to extremely slow speeds to even pass through, it is almost like the flow has to be laminar! That is asking alot from a big flaming ball of fire in the combustion chamber. By the time that local area of gas near the seals slow down the exhaust port is open.
I am not saying there is no chance of leakage, but for Formula 1 purposes especially, the seals only have to last for a few hours. I am sure Toyota had good longevity with their Bishop valve engine.
"I was blessed with the ability to understand how cars move," he explains. "You know how in 'The Matrix,' he can see the matrix? When I'm driving, I see the lines."