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new engine design

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Old 07-18-2005, 10:58 PM
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new engine design

http://www.dynacam.com/Product/Desig..._overview.html

Neat looking but will it be practical.
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Old 07-19-2005, 12:13 AM
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interesting... no wasted strokes, a fourcycle type that can run like a two cycle... no more wasted strokes. I don't see why it couldn't be put to practical use, if it produces the power they claim. I can see that it should, since it can push the piston back on the exhaust stroke with a power stroke...
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Old 07-19-2005, 09:10 PM
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interesting, but looks expensive
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Old 07-19-2005, 10:04 PM
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Looks like oil control will be a problem. You've always got a cylinder on the bottom, no matter how you rotate it. If it burns oil it'll never pass emissions. Interesting idea, but I dont see it happening.

OBTW, it looks like they adapted a swash (or wobble) plate compressor to make an internal combustion engine out of it.
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Old 07-19-2005, 10:24 PM
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looks like a hydraulic motor/pump to me
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Old 07-21-2005, 10:14 PM
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For those that know aviation you understand how that validates the system to a degree- it has to perform to make it in that field- even under experimental. I'd say it sounds like a helluva product. Time will tell. wish I had money to lose in an investment- could be a rich man someday or wiser.
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Old 08-08-2005, 01:48 AM
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That thing looks almost identical to an A/C compressor, the exception being that it has opposed pistons instead of a single set operated by the cam or eccentric plate in the middle.

The valve train would be a nightmare, I can see that. I note that the Wankel engine had fewer moving parts, but it had its own developmental troubles - mainly seals that went out around 70,000 miles.

The one advantage I see is that it has no radical shapes to cut out or machine. Wankel side casings had to be difficult to machine.

That cam in the center though, I wonder how tricky the bearing setup is?

It's different, I give it that. Something it has in common with the Wankel though is that it appears to be a design adapted from a type of pump. If you think about it, most compressors are set up very similar to a piston engine.

What would be real impressive is a turbine engine based on twin-gear oil pumps!


~Wolf
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