You give a guy a 3D program and he goes crazy :)
There are probably only three guys in the world
that will appreciate this. The three guys that designed
the complicated, multi valve, high power RX8 engine intake manifold.
Everybody else will think I have gone off the deep end.

A dynamic chamber is a device that takes advantage of the
180 degree out of phase intake pressure pulses from rotor one and
rotor two. In effect it doubles the length of the runner
at low RPM and works like an ordinary tuned runner at high
RPM. You get two torque peaks. One at high RPM
and one at half of the high RPM number. This technique has been
used on all Mazda rotaries since EFI was installed in 1986 or so.
The RX8 has three stages and there fore is tuned at six different
RPMs. Consequently the RX8 engine torque curves is almost flat from
2500 RPM on up to 8500 RPM. The RX8 manifold is high and bulky. Therefor
when installing the RX8 engine in an aircraft it is removed and a
simpler more compact manifold is installed. Many computer controlled
valves are used in the RX8 manifold complicating the design.
This is an attempt to simplify and cut the height and cost of the
manifold.

A rotating and translating  cylindrical sleeve is used that screws itself
into the helical manifold as a function of RPM. Very similar to what
Mercedes and BMW use on their V8 engines. Really only useful
in street cars that need a lot of torque at low RPM.
the aircraft rotary engine runs from 5000 RPM at cruise to about
7500 RPM at take off so something like this is not worth
the trouble. Fixed length 2 inch diameter runners around 25 inches
long work fine for rotary aircraft engines.

This is a crude first concept version. I have already thought
of some aerodynamic improvements.

Paul Lamar ...No rotor no motor.

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