- Jun 5, 2002
- Iowegia - USA
quote:Yep, they are still experimenting with it.
This sealing problem was satisfactorily solved in patent U.S. Pat. No. 6,164,263 through a male-female pivot design overlapped by the carriage. Results of theoretical simulation and some experimental data revealed exceptional engine characteristics for the Quasiturbine device, and in particular the possibility of a shorter pressure pulse with a linear ramp compression-pressure raising-falling slope near top dead center.
quote:http://auto.howstuffworks.com/quasiturbine4.htm On this page they explain photo-detonation (PD) in layman's terms. In physics, PD refers to heat transfer through the gas by infrared energy ("photon energy") permeating the gas. Theoretically, this type of detonation produces a very high rate of energy release, I.E., very quick energy release and subsequently high temps and pressure. Here is something that doesn't quite make sense:
"Photo-detination", which was not illustrated there,
quote:On this same page they show low-temperature, low emissions combustion supposedly via photo-detonation. According to the gas law and it's modified equations, PV = nRT so as pressure goes up, so does the Temperature. High temps produce NOx, so how can they claim low emissions unless this PD process allows the gas to cool quickly after ignition? I would like to see a P-V cycle curve for this puppy. It seems to work on the Dual Cycle principle which is between the Otto and the diesel cycle.
Of course, the high pressure required for photo-detonation puts a significant amount of stress on the engine itself.