Always a great day to introduce a new engine!
Welcome to Longboy's 'SPLIT MONO" premier.
Another use of my geared together crankshafts successful in four previous builds. In those engines, each crank segment had its own piston.
And you can gear 2-3-4 shafts together with only one of those shafts having a connecting rod and piston driving the assembly. But could one piston drive two crank segments directly?
And the answer is yes as you see here.
SPLIT MONO build started 1st week Feb. and finished up last week of Mar.
SPLIT MONO I can say ( reasonably) is the 1st model built showing bifurcated rods on one piston. It would of been great to also say this is my original idea!
That is not so. Looking through web sources like Pinterest, YouTube and such, I have found only three examples in I/C with this arrangement. One being an educational discussion module on the concept. Another, a motorcycle racing development from the '90s. The third is a current production engine from a German manufacturer. IF YOU FIND THIS ONE, post it here! Then you'll have an ideal on how long I spend cruising the internet after shop time!
Looked like it would fit my abilities and fit in with previous surprises around "something different". Maybe another machinist will try this out. It's a single. Sold in the real world. No mystery to the reciprocating assembly. Good luck with your projects and see the video now! .Dave!