Subject: Single Rotor
From: Paul
Date: 4/23/2000, 9:52 PM

Rodger Hilyard wrote:


Paul Wrote;
I don't think the torque goes negative on a one rotor.
The torque fluctuation is not as bad as a two cylinder piston engine.

Rodger Writes;
 In the Single Rotor engine ( i.e. the "F" torque curve) the torque
excursion below the zero line in the chart below can be called
Negative Torque, there may be other , even more precise terms,
but negative torque seems descriptive.


I stand corrected. I should have known that as I think I uploaded
that chart from Kenichi Yamamoto's book Rotary Engine.

What kind of flywheel or prop do you have? Seems like a prop
should damp some of that shake. This may be one case where 
a heavy prop would help.

Paul Lamar
 
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Torqe-fluct-2rotv4cyl.jpg