Quote:
Originally Posted by dcb
ignoring the shockwave bit, it seems very two stroke-esque, the intake and
exhaust ports are open at the same time. *maybe* then can get it to run
cleanly at a very specific rpm/load.
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Two-strokesque for sure. Both the intake and exhaust ports are not only
open at the same time, they are open all the time! However, for any
particular combustion chamber, only one port is open at a specific point in
the disk's rotation.
Quote:
But, then again, this is basically a turbine, the only torque being generated
seems to be from the gasses escaping out the exhaust port, and what keeps
them from blowing back up the intake instead is beyond me at the moment,
or why it should be better than a normal turbine with a distinct combustion
section.
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Yes, like a turbine, it has a single moving part, the disk. The operational
RPM range would be strictly regulated by the velocity of
propagation/reflection of the pressure wave across the chamber. That
velocity may not be constant due temperature, pressure, and density
variations in the chamber.
I suspect that the efficiency of the the device is a function of the sealing of
the chamber inner and outer ends in the brief rotational period between
ignition and exhaust of the hot gases. The difficulty is probably keeping the
sealing device(s) from dragging throughout the disk's rotation.
(Thinking of a Wankel's wipers/seals.)
Does this device require metered/premixed lubricant to be added to the
intake air stream?
A fascinating device that clearly shows thinking outside the proverbial box,
in this case the cylindrical box of the piston/cylinder, a turbine's
cylindrical combustion space, or the two-strokes twisted, essentially
cylindrical exhaust tract.