Attached are a couple of files that appear to indicate progress with a
 direct injected multifuel approach.

 The first is of most interest, because if the Wankel SuperTEC KMM502 and
 KMM503 make it to production, they may instantly become a very cost
 effective source of an engine. Â More and more photos of this design
 appear to be emerging on the WWW.

 The second file was captured from a Russian web page. Of interest to me
 is the information about ceramic coatings.

 Just wanted to share this with our "Rotary" community.

 "Thinking outside the box"


 JCP

 Do you have a link for that Korean pdf John? Too big at 2.7 meg to publish
 on here.

 We have had bad luck with ceramic coatings coming off and
 destroying the rotor housings.

 ----------------------------------

 Also those engines appear to be charged cooled like the Rotamax.
 I don't know how many charged cooled engines people need to make
 before they figure it out that charge cooling is not the best way to
 design a Wankel engine. I predict this company will turn out
 to be a loser. Charge cooling is giving the Wankel rotary engine
 a bad name.

 -------------------------------------------

 I watched all the videos on the web site
 http://www.lmlkorea.com/ and it may not be charged
 cooled. It has plain journal bearings. That implies an oil
 cooled rotor like the Mazda. If they make it.... it
 might be a dream come true. It has a unique combustion chamber shape
 and
 direct injection. Who knows? They might pull
 it off.

 Paul Lamar


It's interesting that KKM502 is listed as an NSU product here:

http://cp_www.tripod.com/rotary/pg05.htm


Matt-


KKM502 *IS* a NSU Product. I was there.

WST spells it Kkm502. (copycats)

Regards
Rolf

I uploaded the video to youtube.
http://www.youtube.com/watch?v=Sw3-X6Zn3E0
Do you see any changes from the original KKM 500?

Paul Lamar

Appears to be an light weight water/oil cooled P-Port design.
Notice the oil pan in some photos.

Design also seems to be far along, as photos show die castings.
Not the crude sand castings of RotaMax.
(RotaMax scared the heck out of me at Oshkosh 2008,
as they appear to have zero engineering capability !)

Check out US patents 7234374, 7234924, 7264454 and 7491046.
US Patents are available at http://www.uspto.gov/patft/
Will need to download and install TIFF viewer available on same site

Yes a dream come true.
But only if it goes into high volume commercial production.
Not a dozen at a time for some top secret military drone project.
At a half million a copy   !

KKM is the German abbreviation for a Wankel engine.

JCP

Here is a better patent retrieval site.
http://www.pat2pdf.org/pat2pdf/foo.pl

Here are some pictures of charge cooled Wankel Gmbh engines
which this may be a follow on.


Paul Lamar