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Author Topic: Where is the "MOST EXOTIC ENGINE"  (Read 731 times)

Offline Bill Gruby

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Where is the "MOST EXOTIC ENGINE"
« on: August 29, 2007, 10:56:44 PM »

  To all engine enthusiasts;


     After seeing the "RCV SP" In-Line engines it got me thinking, there must be others that qualify as "The Most Exotic Engine". Where are they? What do they look like?  If you know of any please post them. Here are the rules:

                 1)  It must be a production engine.  (No one ofs or proto-types)

                 2)  It must be available now.

                 3)  It can be any type, ie 4 stroke, 2 stroke. Diesel etc.

                 4)  It can be any catagory ie. Stunt. Speed, anything as long as you can buy it now.
 
                 5)  Price is no object.

      OK lets see them, if you cannot get a picture post a link to the engine so we can see it.


         "Billy G"   S?P
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Offline Bob Zambelli

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #1 on: August 30, 2007, 08:25:40 AM »
The most exotic engine I’ve ever seen: When I was at a swap meet in NJ a few years back, a fellow had some sort of cylindrical engine, Czech made as I recall. The piston moved axially but power was transmitted to the crankshaft (coaxial to the piston/cylinder) by some sort of swashplate type device that looked like a shaft, about 3/16” diameter, 1 inch long with a central pivot and a sphere at each end. The kinematics were a bit puzzling and I was not able to hang around and learn more about it.

I was, however, a 2-cycle, glow and in production – quite expensive as I recall.

Never saw one before or since.

Jog anyone’s memory??????????????????????

Bob Z.
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Offline Dick Fowler

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #2 on: August 30, 2007, 09:53:08 AM »
Technopower Radial engines.  http://www.technopower.com/products.html


John Brodak has a radial engine on a scale model airplane that he built. Don't know what make that partiular engine is  but Bob Z. was running it at one of the Fly I's a few years back. Bob would know who makes that engine.   Neat sound.

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Offline Bob Zambelli

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #3 on: August 30, 2007, 11:08:49 AM »
Yes, that's the engine I was running at the Fly-In, a Seidel 5-cylinder radial.
It's around 2.5 CID and is fed by a single OS Max .40 carburetor.

You may recall that it sounded a bit wimpy. I suspected a problem so I did what any engineer would do - I took it apart. Sure enough, the valve timing was noticeably off.

Since there were no timing marks, I studied the engine in order to determine a reasonable timing scenario.
The plate cam is driven by the ring gear a single stationary planetary system.

It now runs beautifully and is a real powerhouse. And, the sound is as realistic as it gets.
We installed it in John Brodak's Niewport and it flys like a dream.

The silicone tubing is to collect and direct the exhaust out the bottom.

Bob Z.
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Offline Marvin Denny

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #4 on: August 30, 2007, 02:59:09 PM »
  The MCC (or was it anMMC?)  engine--  Something like Migrating Combustion Chamber  if I remember correctly.  It was something like a Wankle except the rotor was triangular shaped.  I was going to buy one, but they made them in  .60 size and larger.  never heard much since.  I heard that Dave Gierke had one that he ran tests on.  He might be able to tell you where you could purchase one.

  Bigiron
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Offline Bill Gruby

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #5 on: August 30, 2007, 03:32:52 PM »
OK Marvin;

  This the one you mean. It's an Erickson.

 "Billy G"
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Offline Randy Powell

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #6 on: August 30, 2007, 03:54:30 PM »
Don't all rotary engines have a trangular rotor? I know my Mazda did. A trangle with sort of rounded sides.
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Offline Bill Gruby

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #7 on: August 30, 2007, 04:36:23 PM »
No Randy not this one, this link will explain it better than I can:

  http://findarticles.com/p/articles/mi_qa3819/is_200003/ai_n8884520


  "Billy G"   ;D
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Offline Marvin Denny

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Re: Where is the "MOST EXOTIC ENGINE"
« Reply #8 on: August 30, 2007, 09:06:43 PM »
  That is it I believe Bill.   Quite pricey if I remember correctly

  Bigiron
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