Patent ID: 9121472
Filing Date: 2015-09-01
Classification: F16F

Abstract:
1. An internal combustion engine with a cylinder and with a crank drive comprising: a crankshaft in which the crankshaft mounted in a crankcase has an associated crankshaft throw for the cylinder; a compensation weight serving as a counterbalance for mass compensation arranged on the crankshaft on the side opposite the crankshaft throw; a piston corresponding to the cylinder connected pivotally to the crankshaft via a connecting rod, wherein the connecting rod at one end is connected pivotally to the piston via a piston bolt and at another end is mounted rotatably on a crank journal of the associated crankshaft throw of the crankshaft; wherein a longitudinal axis of the piston intersects the longitudinal axis of the crankshaft, and when the piston is at bottom dead center, a plane spanned by the two longitudinal axes forms a center plane of the compensation weight; where the distance from the peripheral surface of the outward-facing side running in the peripheral direction to the longitudinal axis of the crankshaft is given by the function s(α) and s(α)=R+R [1−cos(α)+1/λ- 1/λ, (1-