Hello. Have you ever seen this company?
 http://www.wankelsupertec.de/en_index.html

 They make some light weight engines. Maybe the 2 rotor 350 engine is
 a good choice  for aircraft application.

 Regards Kenneth Martinsen

 Yes I spoke with  them at Aero. However I have never seen one run.

 Paul Lamar


Those are some very good looking engines!

Dan Gorsline

IMHO There is a major flaw. The rotor bearing needs to be much wider for
this reason. See the attached JPG. This was discovered over a 100 years ago.
It amazes me engine designer still make this mistake.

This limits the RPM and manifold pressure both of which create HP.

It is from Taylors books on engine design. This is the bible of engine
design and every engine designer should read it.

http://www.rotaryeng.net/books10.html

The Internal Combustion Engine in Theory and Practice.

Volume 1: Thermodynamics, Fluid Flow, Performance. Second Edition Revised.

Volume 2: Combustion, Fuels, Materials, Design. Revised. Charles Fayette
Taylor. The MIT Press Cambridge Massachusetts, and London England.

BTW Dan, please add your last name to your messages.  Out of the 900 people
on here we have many Dan's.

Paul Lamar



Hi Paul,
   Yes, those plain bearings certainly appear to be too narrow. Higher
oil pressure may overcome lack of load bearing capacity somewhat (possibly).
I did not notice any O rings, are they in the side plates ? does this engine
rotate in the opposite direction ?
   Chris Hoskins.

Most of that is just mock ups. It has been around for at least five years
and I have never heard of one running.

Paul Lamar


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