Abrégé

An internal combustion engine (10) includes at least one cylinder (12) having a piston, and a cylinder head containing an inlet duct (3) incorporating an inlet valve 1 to allow flow in only one direction and an exhaust duct incorporating no mechanical flow restricting device and at least one chamber valve (2) through which both inlet and exhaust fluids pass from the ducts (3,4) into and out of the cylinder (12), and a combustion chamber (6) in the cylinder (12) that allows the chamber valve (2) to be significantly open when the piston (5) is at top dead centre enabling a transfer of fluid, fluid flow pressure and pressure waves between the cylinder, and the inlet (3) and exhaust ducts (4).

Classes IPC  ?

• F02B 29/02 - Autres caractéristiques de la dynamique des fluides propres aux systèmes d'admission pour améliorer le volume de la charge
• F01L 1/28 - Systèmes de distribution à soupapes, p. ex. à soupapes de levage caractérisés par des soupapes coaxialesSystèmes de distribution à soupapes, p. ex. à soupapes de levage caractérisés par des soupapes travaillant à la fois avec l'orifice d'admission et d'échappement