I had this idea on on how to modify a Bill Marvin type chart
to better illustrate the equivalence of a one rotor 650cc
"displacement" to that of a 650 cc per cylinder four stroke
two cylinder engine. Total displacement of the 2 cyl. piston engine is
1300 cc. The areas of the colored blocks are equal to each other
and are proportional to the displacement of the chambers.
In order to do this I had to make the shorter piston blocks taller to keep
the area the same as the longer rotary engine blocks while keeping
the timing the same.

Note that they both fire once per rev as indicated by the
red tick marks.

I hope this clears things up.

---------------------------------------------
Also keep in mind that horsepower is work done in UNIT time.
One rev is UNIT time.

Paul Lamar ...No rotor no motor.

Paul,

I really like the Bill Marvin type chart for the two rotor.  It very clearly
shows the power overlap imparted to the e-shaft.  It also shows the
torsional vibrations of a single rotor.  How about the three rotor?  How
much power overlap is there?  If you have time, could you please modify the
Bill Marvin chart to show all three rotors and how the power impulses
overlap?

Norm DeBoer


Some body cut and pasted this but I don't remember who.