This device is used to create a rotation out of the up and down motion of the pistons, and its use creates a smoother running engine.
Answer Crankshaft
The crankshaft converts the motion of the pistons through integrated offset shafts. The number of pistons can be changed depending on the size of an engine to improve performance. Also, counterweights may be added to improve balance.
Asked by DRay585 · Last updated 5 years ago · 10.5K views · SOURCE
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