The present invention for the internal combustion engine of a reciprocating manner, to the structure of the pure oxygen gas engine which can only use pure oxygen as an oxidizing agent instead of air is the main component nitrogen and oxygen.
According to one embodiment of the invention, comprising at least one cylinder and at least one exhaust pipe to the combustion chamber formed in the cylinder, and then the combustion exhaust to exhaust the combustion chamber is provided for combustion, air within the combustion chamber an internal combustion engine intake manifold is not provided for supplying the piston assembly to reciprocate between top dead center and bottom dead center of the combustion chamber; At least one exhaust pipe which is located to one side of the upper cylinder; Pure oxygen supply line for supplying pure oxygen to the inside of the combustion chamber; Gas supply line for supplying a predetermined gas into the combustion chamber as the oxidizing agent in the blood pure oxygen; And pure oxygen to a control unit for controlling the internal combustion chamber the fluid mixing rate in accordance with the stroke motion of the piston assembly - provides a gas internal combustion Authorities.