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| Gold Blend. A Coffee Jar Engine........ |
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| Dean W:
It sure looks pretty, David. Keep on with the cogitating! : ) Dean |
| stirling lad:
Well, who better for a bit of the old cogitating, :scratch: than an old codger :smart: I'm sure you'll crack it soon mate, you just need to focus....ummmm :med:ummmm. cant wait to see what you decide?? .....Mike... |
| Stilldrillin:
Well. It's been nearly a week now....... And, I'm only two crank discs further forward! ::) I really like the idea of a Ross Yoke.. Found all I could on Google, and set to with some paper, pencil, rule, calculator. :thumbup: After an hour or so of drawing lines and angles. (Sin op hyp, cos ad hyp, tan op adge). I realised I had totally lost the plot! :bang: Tried again today. 36mm between rods. Need 1" stroke..... Drew it all to scale x 2.. Or x 3.. Or x 4. I even cut out cardboard shapes. :smart: But, I don't think my dimensions are possible. I think I'm trying to change the laws of trigonometry! :palm: Unless, someone out there knows different...... Anyone got any ideas/ input? David D |
| Bluechip:
Dave SD Looked at this ??? http://www.ohio.edu/people/urieli/stirling/engines/yoke_vol.html Dave BC |
| Stilldrillin:
Thanks Dave. I've been studying that for several weeks......... :scratch: The only part which makes sense........., We now consider the minimum and maximum displacements of the compression and expansion pistons. Notice that they respectively occur when the crank arm lines up with the yoke edge. :smart: After all the faffing about with me geometry set etc. I don't think it's possible to have a stroke of more than 18mm, at 36mm centres. Unless........ David D |
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