APPARATUS AND METHOD FOR CONTROLLING SWIRL IN A PORTED, TWO-STROKE, INTERNAL COMBUSTION ENGINE

摘要

An apparatus and a method for controlling swirl of air in a ported, two-stroke internal combustion engine include deflecting air into the intake port of a ported cylinder by an array of vanes disposed around the cylinder's intake port. The angle of deflection establishes the swirl of air in the cylinder. Swirl is varied by changing the angular positions of the vanes under the control of a vane drive mechanism coupled to an actuator. A swirl control mechanization controls vane angular position in response to engine operating parameters.