Patent ID: 8640659

Claim:
An internal combustion engine ( 1 ) comprising: a chamber ( 3 ) designed to receive a working fluid intended to undergo combustion within said chamber ( 3 ); a first piston ( 4 ), which contributes to delimiting the volume of said chamber ( 3 ); a first passageway ( 5 ) provided through said first piston ( 4 ) in order to bring the inside of the chamber ( 3 ) into communication with the outside, said first passageway ( 5 ) being designed to supply the chamber ( 3 ) with working fluid and/or to discharge, out of the chamber ( 3 ), the burnt fluid resulting from the combustion of the working fluid; a first valve ( 6 ) mounted on the first piston ( 4 ) in order to control the opening and closing of said first passageway ( 5 ); and an output shaft ( 8 ) mounted coaxially with said first piston ( 4 ), the output shaft ( 8 ) and the first piston ( 4 ) cooperating so as to convert the motion of the first piston ( 4 ) into rotational motion of the output shaft ( 8 ), characterized in that the output shaft ( 8 ) and the first valve ( 6 ) are kinetically coupled so as to convert the rotational motion of the output shaft ( 8 ) into motion of the first valve ( 6 ) relative to the first piston ( 4 ), and characterized in that the engine further comprises, on the one hand, a first guide path ( 9 ) integral with the output shaft ( 8 ) and, on the other hand, a first guiding element ( 10 ) integral with the first piston ( 4 ), said first guiding element ( 10 ) being mounted so as to move along the first guide path ( 9 ), in order to convert the motion of the first piston ( 4 ) into rotational motion of the output shaft ( 8 ).