Richard Egge's
V-Twin Scotch Yoke Drive Stirling Engine

Rosinante Engine


The engine has two power cylinders and two displacer cylinders. The power cylinders are arranged 90 degrees to one another while the two displacer cylinders are vertical and parallel. The crankshaft runs front to back just above the top of the displacers, with the crank throws at the front and the fan/flywheel at the back. The linkage connecting the pistons to the crankshaft is a variation of a mechanism called a "Scotch Yoke". Both power pistons operate off of the same crank throw and since they are located 90 degrees to one another, the left piston leads the right piston by 90 degrees, (the crank rotates clockwise.) Why Rosinante you ask? Someone suggested to me that the engine reminded them of a windmill. That reminded me of the story of Don Quixote. Rosinante was the name of his horse.
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