----- Original Message -----
Sent: Monday, July 10, 2006 10:46
AM
Subject: [FlyRotary] Re: Nothing to do
with Rotary Engines, but....
What I was alluding to is the Fact that gas
engines produce torque during a smaller portion of the 360 degree rotation. An
electric motor on the other hand puts out torque for 360 degrees. Hence when
using an electric motor to drive for instance, a pump; instead of a 4hp
gas engine one can use approximately a 2 hp and get the same pumping
efficiency - like amount of water moved. I think I came across the
formula in an old Grainger catalog but it isn't in the one I have
now. FWI
Wendell ( I'll disregard the donkey crap statement
for the donkey)
Wendell, Actually it depends on the elect. motor as well. If
its DC then there is continuous torque put out, but if its a single phase
standard 1800 rpm motor.. it only puts out torque for 1/2 a rev. If its a 3
phase motor its nearly back to 360 deg torque due to it changing phases.
However at the end of the day.. it still has to raise the lb's so many
feet to be 1 hp.
As far as the donkey comment.. I was just trying to inject a
little humor into a rather dry subject.. no offense intended. My appologies if
any was taken.
Jarrett