Paul, Every time I go to a hot rod or experimental aircraft show, I
 am invariably impressed with the clever thought and ingenuity.   I
 had that feeling again when I came across this "battery replacement"
  proposal.
 http://techcrunch.com/2011/06/14/rethinking-the-battery-clarian/
 Grant Johnson


 If it rotates like a Wankel, sounds like a Wankel and smells like a
 Wankel it is a Wankel. I am surprised the patent office is so stupid
  that they gave them a patent on it.

 A Wankel by any other name is still a Wankel :-)

 Of course it stores more energy per pound than batteries as liquid
 hydro carbons are almost unbeatable in that regard. The only thing
 that comes close is rubber bands. These are pictures of the Rubber
 Bandit. Never flown.

 Paul Lamar


 The patent has been applied for, not issued. It's a Wankel with a
 generator integrated into the housing, or the eccentric.

 David Josephson

 Maybe the rotor is a magnet. That might work with aluminium end
 housings.

 I say might because aluminium has magnet properties.

 If you have a pendulum with an aluminium disk and you have a magnet
 with a slot in it at the bottom of the swing. In other words at Six
 o’clock. Now drop the pendulum from three  O-clock and it will stop
 at six o’clock. Now cut slots in the disk and it will go right
 through the magnet and back and fourth.

 I suppose they have tested this device and they are not affected by
 magnetic properties of aluminium. Maybe non magnetic SS will work
 for the end housings.

 Maybe the e-shaft is magnetic and there is an armature  section
 outside the engine proper. No different than connecting a generator
 or alternator in line.

 Cooling the side housings would be a challenge with a magnetic
 rotor.

 Interesting idea if it works. I wonder what size it is.

 The small Wankel engine is not a problem as many Wankel model
 airplane engines have been built and sold. They are usually rather
 expensive. There is one on Ebay for $410. The Nitto engine is
 slightly over one HP or 934 watts at 17,000 RPM. Trouble is it runs
 on model airplane fuel with a glow plug. I'll wager it is LOUD!!!
 :-)

 Paul Lamar


 A few years ago I was developing a Pancake generator to use in wind
 turbines as they have some major advantages over the standard set up
 when using Neodymium magnets. I had some large and at that time most
 powerful rare earth magnets available made N50.

 During the development of the generator I was very careful about
 using any magnetic tools, these particular magnets had the
 capability to do some serious damage to the fingers if you got them
 in-between the magnet and spanner.

 I noticed that passing a piece of aluminium plate through the lines
 of flux caused the aluminium to be deflected. The effect was
 substantial.

 Andrew Campbell.


maybe this helps
http://www.wired.com/images_blogs/gadgetlab/2011/06/clarianlabs_rotary_piston_generator_datasheet.pdf

Best Regards,
Aleck Romero

Ah so!!! I see the shaft does not extend through the end housing and
part of it is shaped as a alternator armature.  The generator is completely contained
with in the end housings. It is going to be hot inside that generator.

Clever idea. There are no centre main bearings anyway. Should
work great if they can cool it.

This is the best explanation and diagram of how the Wankel works
I have run across so far in 50 years. I appears to be part of the
patent application. Each step is well illustrated.

Paul Lamar

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