Two-Stroke Cycle Engine with Flow Induction Corrected at the Intake and Transfer Phases

The implementation of a single-cylinder two-stroke engine equipped with an auxiliary cylinder is described. The purpose of such a cylinder is to modify the diagram of flow induction through the inlet and transfer ports in the main cylinder in order to make it asymmetrical relative to tdc.

Subsidiarily, the piston in the auxiliary cylinder is used to improve the balance of reciprocating forces.

This engine has been developed for specific use in trial motorcycles.