초록 ▼

An improved internal combustion engine includes a rotary valve member fitted into a cylinder head with cylindrical openings formed therein. The rotary valve is driven to bring working fluid delivery and evacuation ports into and out of registry with ports leading to the combustion chamber. A sealing

An improved internal combustion engine includes a rotary valve member fitted into a cylinder head with cylindrical openings formed therein. The rotary valve is driven to bring working fluid delivery and evacuation ports into and out of registry with ports leading to the combustion chamber. A sealing member is provided intermediate the valve member and a combustion chamber to prevent the fuel/air mixture or exhaust gases from blowing into the area intermediate the valve member and the cylinder head and into regions intermediate individual cylinders.

대표청구항 ▼

[ I claim:] [1.] In an internal combustion engine having an engine block defining a plurality of cylindrical chambers therein with a plurality of pistons reciprocally disposed in the chambers, with a combustion chamber defined adjacent the pistons for combustion of a fuel/air mixture therein, the pi

[ I claim:] [1.] In an internal combustion engine having an engine block defining a plurality of cylindrical chambers therein with a plurality of pistons reciprocally disposed in the chambers, with a combustion chamber defined adjacent the pistons for combustion of a fuel/air mixture therein, the pistons being connected to a crankshaft for power take off therefrom, the engine having an assembly for supplying a fuel/air mixture for combustion in the combustion chambers and an exhaust system for removal of exhaust gases resulting from combustion, the improvement comprising:a cylinder head formed with a cylindrical opening extending longitudinally therethrough and having a plurality of first ports formed therein, said first ports being in communication with the fuel/air mixture supply assembly and the exhaust system, and a plurality of second ports, said second ports being in communication with the combustion chambers;a valve member formed as an elongate cylinder and rotatably disposed within said cylindrical opening, said valve member having a plurality of passageways extending radially therethrough at predetermined locations for selective alignment with said ports in said cylinder head for passage of the fuel/air mixture and exhaust gases therethrough;a gear attached to an end of said valve member for rotation thereof by the crankshaft at a rate for selective alignment with said ports in said cylinder head according to a predetermined timed sequence for passage of the fuel/air mixture into the combustion chamber for combustion and exhaust gases from the combustion chamber after combustion; andat least one sealing member having a body and a sealing surface formed thereon, said sealing member being slidably disposed intermediate the combustion chamber and said valve member, said sealing member having a passageway formed therein for passage of the fuel/air mixture and exhaust gases therethrough, said passageway being coincident with at least one of said second ports in said cylinder head, said sealing member being movable between a first position whereat said sealing surface is in sealing abutment with said valve member and a second position whereat said sealing member is spaced from said valve member and is out of sealing abutment with said valve member.