In this work, we have investigated and analysed the kinematics of an engine design in which a pair of conjugate camshafts is used instead of the conventional crankshaft, so that the power can be transmitted from the pistons to the drive shaft via connecting rods and oscillating roller followers. The influence of the different cam shapes on the kinematic functions which describe the regularities and characteristic properties of the movement of the cam mechanisms (displacement, velocity, acceleration and jerk) was investigated. In addition to the different cam shapes, the influence of the different geometric parameters of the
mechanism on the performance of the engine was also analysed. Based on the results of numerical simulations, we have shown the advantages and disadvantages of the investigated engine concept with a conjugate cam pair compared to the conventional crankshaft design.
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