Message-ID: <3F68AC30.3080509@earthlink.net>
Date: Wed, 17 Sep 2003 11:47:12 -0700
From: Dale Smith <timepilot@earthlink.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Internal gearing ...
References: <list-2583018@logan.com>
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> Marko Bewersdorff wrote:
>
>> here is an animated gif from www.der-wankelmotor.de it shows the 
>> original of
>> Wankel's idea on improving a turbin. Check it out, no reciprocating 
>> parts.
>> The spark plugs where in the internal rotating part.
>> I don't know if the gif animates in your email reader - you might 
>> have to
>> save it to your PC first and then look at it with a web browser.
>
> ---
> Thanks, Marko.  That's a very interesting engine.  The current 
> configuration seems to be even better though it's easy to see Wankel's 
> progression of thought in these engines.
>
> Steve 
>
>>>  Homepage:  http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>

Au contraire, Mon Ami ...

Felix himself said that Mazda "Had made a mule of his race horse", with 
their re-design to it's current configuration.

If you look closely at that gif, it is in perfect balance at all stages 
of housing/rotor rotation. No bearing loads due to "wobble".

Prototypes were said to run 40 thousand RPM !   Current Mazda designs 
are limited to 13K or so due to exceeding rated bearing loads above 
those speeds

If I reacall, it was not practical insofar as it was similar to the old 
"Rhone" engines where the crank stood still and the engine rotated 
around it, and you had to disassemble the engine to change spark plugs, 
but what the hey, nobody's perfect.