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Atkinson cycle engine and Economic

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OKTomT:
Thanks Guys.
Chuck    Economic Motor Co. built  These under the Hopkins patents
Nick   I had no plans just a good picture. I am not sure how the original one worked .The one I built has a normal exhaust cycle with popit valve. The intake valve is atmospheric popit. On the intake stroke it sucks air and gas for about 1 to 2 inches of the stroke and then the plug fires and the rest of the stroke is the power stroke. The fuel is propane and leaves a glue like substance in the cylinder which sticks the intake valve over night.  :doh:   Tom

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