FIELD: mechanical engineering; piston engines.
SUBSTANCE: proposed engine has cylinder with piston fitted in cylinder, crankshaft and lever. Upper connecting rod is hinge-connected with piston, and lower connecting rod is hinge-connected with crankshaft and upper connecting rod. According to invention, single-arm lever is hinge-connected with bracket and connecting rods, and lower connecting rod is made of length from 0.5 and less than 0.625 or more than 1.25 and up to 1.5 of piston stroke.
EFFECT: improved quality of transfer of force on piston into useful peripheral force on crankshaft.
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