Subject: VANDYN Super Turbo
From: "rotaryeng@earthlink.net" <rotaryeng@earthlink.net>
Date: 3/6/2015, 11:06 PM
To: AA-1-Me


Hi Paul,


How's life? I came across this info recently and I noticed that
they are developing a unit similarly to what we first spoke about.
I imagine the CVT is probably software controlled. Say hi to Robin
for me.


Cheers

Doug Fir Japan

Hi Paul,

Yea, I heard. I haven't been out of contact THAT long:)
OK, Thought you knew about the VanDyn Super Turbo. Here are some
links. Basically your idea but with a gear drive not friction drive
interface.

Friction drive:
My tests have shown that the ROTREX drive doesn't work in reverse
mode. In other words it is biased towards high torque low rpms input
instead of vice versa.
The reasons it doesn't work as a step down drive has to do galling and
the inability to quickly throw the friction wheel outwards. The bearings
holding the planetary friction wheels are loose by design and in 'as
designed' operation the final sun shaft does not move until the unit
gets up to speed and an oil film is created. Said another way the small
output shaft slips a bit until the oil film is developed. Creation of
that film requires the annulus rotating which won't happen.

About the superturbo. Could be a nifty idea if the turbo is sized big
enough.

https://www.youtube.com/watch?v=CrpAWCnbw9s

Company website: http://vandynesuperturbo.com/partners.html

Patent on multiple stage gear boxes attached for your files. Input the
number at Goggle Patent

Small-size high-speed transmission system for use in
microturbine-powered aircraft
US 7481396 B2
Cheers
Doug Fir Japan


Greetings,
Thank you very much for this information. I have a strong desire to work with the current producers of rotary engines to run CNG as a stationary single rotor and 2-4 as vehicle power. I prefer a slower revving blow down turbine [Turbo Compound] of 50k. Purely for service life span.

Oil pressure actuators similar to what is being used on variable valve train automotive systems coupled to a throttle position sensor and engine rpm sensor could offer timely mapping and mechanical actuation on the CVT. I like the concept and have arranged for capitol to pursue this project in the near future utilizing 3d metal printers.

Magnetic couplers can eliminate heat transfers and produce vibration issues to zero.

Personally, thank you Paul for your active efforts to make our lives better! Your publishing of information has been a great source of pleasure to me.
FYI
Here is a link to the Milner CVT:
http://www.orbitaltraction.com/milner-cvt-overview.html

Cheers Ya-All,
Michael Nash

Thanks for the ideas Michael.

Poul, Please pass this on the Rene as I lost his card.

Paul Lamar HaptBanhoff McDonalds Frankfurt :)
BTW I am off to the US tomorrow.

The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
You Tube http://tinyurl.com/beqqxas
Copyright 1998-2015 All world wide rights reserved.