Paul,
When I was at the Seven Stock Show, I noticed that all of the rotors were
cast iron.
Has anyone made aluminum rotors? Is there too much thermal expansion to use
aluminum?
I was also thinking that the rotors could be made of a ceramic--low
expansion, lighter weight, and possibly lower cost.
Steve Brazil

I think it is a heat issue. The rotors can run 500 F or more.  Titanium
seems to work but it is expensive.

--
Paul Lamar ...No rotor no motor.

Has anyone heard about these guys?  They seem to be seriously progressing
toward a ceramic rotary engine.  Any background on them besides what this
website has?

http://ceramicrotaryengines.com/

Les


This is interesting.  The inserts for the tip seals you guys were talking
about would work on a ceramic rotor.  I'm not sure what it would take to
make one, though.  I've never worked with ceramics in this type of
application.

Steve Brazil

BTW nrsrotorsports@shaw.ca are working on silicon carbide corner seals
which should cut even more wear on end housings. I saw them at Seven Stock.
Their apex seals are a bit cheaper than Iannetti as well.

BTW At the SAE show I found www.ceradyne.com here in SoCal. Costa Mesa.
They gave me a price of $80 each for 2 mm silicon carbide apex seals. This is less
than half what everybody else is charging. They had made some before. Andy MacQueen
amacqueen@ceradyne.com knew exactly  what I was talking about.


Paul Lamar ...No rotor no motor.

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