Crank drive producing pear-shaped track for connecting rod bearings in piston engines

摘要

Two crank drives (K1,K2) of the same diameter are connected by a connecting rod whose length corresponds to the mean spacing of the crank drives so that the crank drives have a different rotary direction. At least one connecting rod bearing mounted at a distance (a) from one of the two crank circle diameters is located on the connecting rod (V) and runs through a pear-shaped track instead of circular track. At least one piston is connected by a connecting rod to the bearing which runs through the pear-shaped track.