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| I did a bit of drawing, including the setup Crowbar described and it is the way they are saying. The piston does travel faster during the first 90 degrees after the end of the stroke than the last 90 degrees before the end of the stroke. I never would have thought it would have and it seems counter intuitive when the journal is making a perfect circle.
Now I also can see why opposing piston engines have an additional balancing advantage over inline engines beyond the longitudinal balancing. I imagine those big beasts of racial engines on planes likely ran fairly vibration free also with the opposing pistons.
Thanks for the explanation guys! I’ve been looking at the drawings to try to figure out why it is that way and I have no idea why though. Now, if anyone has a way to explain the reason that would be great. Lol | |
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4 cylinder engines and balancers-engine theory
