INTERNAL COMBUSTION ENGINE

摘要

The invention relates to mechanical engineering, in particular to internal combustion engines. The inventive four-stroke internal combustion engine is provided with a rotary valve "FZR" which is embodied in the form of a ring-shaped gear wheel, according to a first variant, or a faceplate-shaped gear wheel according to a second variant, is provided with hole(s) is rotatable about a cylinder having hole(s) and is actuated individually (or consequently) through the gear wheels from a crankshaft by means of a drive. During the rotation of said crankshaft, said rotary valve makes it possible to provide in good time a periodical communication between the internal space of a cylinder(s) and exhaust or intake ducts or completely lock the holes, thereby providing tightness in cylinder(s).