Intake distributor for two-cycle internal combustion engines

Claim 1

In combination with a two-cyclinder, two-cycle internal combustion engine, whose cylinders are substantially horizontal, and one of which lies directly above the other, each of said cylinders having a cylinder inlet port to receive air/fuel mixture to be combusted in the respective cylinder, an intake gas system comprising: only one carburetor for providing an air/fuel mixture for both of said cylinders; and a distributor comprising a conduit having a distributor inlet port receiving air/fuel mixture from said carburetor, and two branches, each leading to a respective one of said cylinder inlet ports, said distributor inlet port being disposed at an elevation nearer the upper one of the cylinder inlet ports, the cross-section of the cylinder inlet ports, the direction of flow from the distributor inlet port, and the length and cross-section of the branches being such as to provide substantially equal quantities of air/fuel mixture of substantially equal density to the two cyinder inlet ports in which the cross-section of the upper cylinder inlet port is smaller than the cross section of the lower cylinder inlet port.