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
Hello
I worked for three years at WST as product manager, the engines
runs really! But it is hard to buy one, they love their work to
much ;-) Most of the handmade samples are dumped by
"secret-skunk-works-customers"....
One test-series is now out for trials as APU-preheater-generaterset
for diesel-railway-engines.
http://www.lr-online.de/storage/scl/xmliosimport/wir/3380184_m1t1w500q75v47964_201504281435-GHA5GIK42.1-ORG.jpg?version=1430961254
http://www.lr-online.de/nachrichten/wirtschaft/Cottbuser-Wankel-auf-Dieselloks;art1067,5016240
It is the small block-wankel, turbo carged and as diesel.
Hopefully this lil-jewel breaks out the lab and will be
manufactured in big numbers. Would be the long eagerly awaited
kerosene two rotor-LSA engine.
Claude
Unless some one with no axe to grind can buy one and test it the
claims will remain just claims.
I have my doubts.
Also I am not waiting for a carcinogenic diesel engine to fly
behind :-)
Paul Lamar
Paul, as you know some super-secret-customer invest only in diesel,
all their other stuff runs with.
the WST works very well on a wide choice of fuel, liquid and
gaseous. it is also possible to hot-switch on a running engine from
diesel to gasoline and then on LPG, H2 or alcohol. burns also good
vodka!
The smell behind your plane depend on your wallet ;-)
Claude Jaegg
Diesel exhaust scrubbers cost $15,000 in the states unless your VW
and then you lie about it :-).
If that is the case it is not running as a true Diesel.
Gasoline won't work with a 20:1 diesel compression ratio.
Wankel AG and Mistral built some engines with diesel fuel injection.
The compression ratio was less that 10:1
The fuel burn was no better than on gasoline.
Paul Lamar
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