Hi Paul Lamar,

You expressed an interest in the Ceramic Rotary Engine. The video is now
available on YouTube to view and this is
the link:


<http://www.youtube.com/watch?v=YnfFEf7wyww&feature=youtu.be <http://www.youtube.com/watch?v=YnfFEf7wyww&feature=youtu.be


Rotary engine enthusiasts might be interested in the CRE engine. If you
would kindly send the link to them or have
it in your newsletter, it would help "spread the word". Thank you.

A second CRE Inc website has also been made:

http://www.creinc.us/


Regards.

Thevendra.



I guess on this one we have to wait and see more details. We really don't
know anything. What seals, how the running
surfaces are finished, cost, weight, fuel burn, etc. No cooling system seems
intriguing.

How far away form a ceramic Wankel on the market? The exhaust is likely to
be even hotter, possible good for turbo
compounding?

Lots of open questions.
Rolf Pfeiffer


With high temps it would act like a diesel with limited rpm.

Dave J

This guy has a few ideas on improving the rotary efficiency,
http://www.youtube.com/watch?v=m3pCLjHZmhM&feature=endscreen&NR=1
<http://www.youtube.com/watch?v=m3pCLjHZmhM&feature=endscreen&NR=1

Graeme Riley

This guy is clueless. He did not read the book "Rotary Engine" by Kenichi Yamamoto page 23 Fig. 3.12 that shows the
pressure difference across the big spark plug holes is near zero.


The book is available here for free download.

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

http://foxed.ca/index.php?page=rx7manual

REbyKenichiYamamoto-1981.pdf

There is only a slight loss across the trailing plug hole which is much
smaller.

It behooves one to avail oneself of all the available information.
Those that fail to learn from history are doomed to repeat it.

Paul Lamar



Paul,

Indeed, this guy is really clueless. I couldn't help but laugh when he spoke of "filling in" a portion of the rotor so
that the "back half" wouldn't be "pushing backwards". The back half of the rotor does indeed "push backwards", but so
does the "back half" of a piston that trails behind top dead center of the crankshaft. "Volume" has nothing whatsoever
to do with this, crank angle and eccentric angle do. However, as soon as top dead center has passed, all the pressure is
in one direction. Filling in a portion of the rotor won't change surface pressures on the rotor any more than filling in
a portion of the piston behind top dead center of the crankshaft will change surface pressure on a piston.

Tom Sash


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