I saw someone with an idea to use two planetary gear sets to make a double
helical gear train. This as stated would increase your max torque and hp. If
this idea was to work a further increase in acceptable torque and hp could
be achieved using the same gears. These gear trains are called double
staggered helical. The idea is that the crown of the tooth on one of the
internal ring gears matches the root of the tooth of the other ring gear.
This increases the amount of teeth in contact at any one time and also
allows a smoother transfer of load over a larger area.

The crown and root would have to line up perfectly but it would be the same
case if they were crown to crown.

A bit late but thanks for a fast response to my fist email regarding a light
rotary for a Hummelbird still looking found some but not cost effective for
me.

Jim M



The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.