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Interesting Alternatives


xcarguy

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wemtd,

 

The Strorker should be faster. For every action, there is an equal and opposite bla, bla, bla. If the pistons are aligned horizontally with the longitudinal axis bla, bla, bla. And they are propelled rearward during the power stroke, it should propel the Storker forward at a high rate of bla, bla, bla. :D

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The last two videos appear to be the same unless there is an alternate ending that I somehow missed.

 

Corrected the first post. This shouuld have been the third video:

 

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The Dyna-Cam has an interesting history. It actually got FAA type certificate but I understand the company imploded for business reasons rather than engine related reasons.

 

I'm pretty sure the Doyle rotary would get a lot heavier when the outer shell is stress analyzed and sections sized accordingly. Oil scavenging would be an interesting system to design.

 

I've seen a lot of alternative engine proposals and a lot of them claim to overcome the problems of valve actuation and balance. If cam follower friction steals 1% of the engine power, it doesn't make sense to develop a new set of unlearned problems with a different configuration.

 

The Ecomotor is a current example. The concept is a WWII Junkers Jumo (that worked very well) and replaces one of the crankshafts with long con rods and a funny shaped head & cylinder to accommodate those rods. There's also the Gemini general aviation engine that is a scaled-down Jumo that I hope makes it to production.

 

http://www.experimentalaircraft.info/homebuilt-aircraft/aircraft-engines-3.php

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