kovas skrev den 16-11-2017 20:33:24
Søren.
Ja det kunne jeg også godt se ved nærmere eftertanke.Dog skal siges til mit forsvar at jeg lige havde læst dette og tænkte at den var så gammel at det kunne passe på daviden.
An inline three-cylinder engine with 180° crankshaft can be found in early examples of the Laverda Jota motorcycle made by Italian manufacturer Laverda. In these engines, the outer pistons rise and fall together like a 360° straight-two engine. The inner cylinder is offset 180° from the outer cylinders. In these engines, cylinder number one fires, then 180° later cylinder number two fires, and then 180° later cylinder number three fires. There is no power stroke on the final 180° of rotation. This unusual crank angle came to be due to lack of proper tooling at the factory, which also made vertical twin engines that utilized a 180° crankshaft.[citation needed] After 1982, this engine had the regular 120° crank angle.[citation needed]
He he. Ja, der har du lige fundet afvigelsen, der bekræfter reglen, med de 3*120 graders forskydelse på stemplerne.
Men prøv lige og tænke over hvordan en firetakts twin (2 cylindre hvor stemplerne er forskudt 180 grader på krumtappen) tænder ???