| 摘要 |
The port-controlled two-stroke engine includes a combustion chamber, a crankcase containing a combustible mixture, a cylinder, a piston working in the cylinder, an intake duct terminating in an intake port in the cylinder wall for delivering the combustible mixture to the engine, and at least one flywheel rotatively mounted in the crankcase about an axis of rotation. The rotation of the flywheel acts to drive the boundary layer of the combustible mixture immediately adjacent the periphery of the flywheel around the periphery. The engine further includes a transfer passage, extending from a first transfer port in the cylinder wall adjacent the crankcase to a second transfer port in the cylinder wall adjacent the combustion chamber, for conveying the combustible mixture from the crankcase to the combustion chamber, the first transfer port being substantially radially located with respect to the axis of rotation.
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