초록 ▼

A valveless four-stroke internal combustion engine employs an intake piston and an exhaust piston that reciprocate within intake and exhaust cylinders disposed adjacent the combustion chamber of the engine. A power piston reciprocates within a cylinder that defines a portion of the combustion chambe

A valveless four-stroke internal combustion engine employs an intake piston and an exhaust piston that reciprocate within intake and exhaust cylinders disposed adjacent the combustion chamber of the engine. A power piston reciprocates within a cylinder that defines a portion of the combustion chamber. An intake port opens into the intake cylinder, and an exhaust port opens into the exhaust cylinder. Upon reciprocation of the intake and exhaust pistons, the exhaust ports will be covered and uncovered. By coordinating movement of the intake and exhaust pistons with reciprocation of the power piston, a combustible fuel-air mixture will be drawn into the combustion chamber, ignited, and exhausted. The timing and extent of movement of the intake and exhaust pistons can be controlled by a crankshaft or cams.

대표청구항 ▼

An internal combustion engine, comprising: a first cylinder; a first piston disposed in the first cylinder for reciprocating movement therein; a second cylinder, the second cylinder being in fluid communication with the first cylinder; a second piston disposed in the second cylinder for reciprocatin

An internal combustion engine, comprising: a first cylinder; a first piston disposed in the first cylinder for reciprocating movement therein; a second cylinder, the second cylinder being in fluid communication with the first cylinder; a second piston disposed in the second cylinder for reciprocating movement therein; an intake port opening into the second cylinder, the intake port being covered and uncovered by the reciprocating movement of the second piston; a third cylinder, the third cylinder being in fluid communication with the first cylinder; a third piston in the third cylinder for reciprocating movement therein; an exhaust port opening into the third cylinder, the exhaust port being covered and uncovered by reciprocating movement of the third piston; means for igniting a fuel-air mixture introduced into the first cylinder through the intake port; and means for reciprocating the second and third pistons in coordination with the first piston to draw a combustible fuel-air mixture into the first cylinder, to compress the fuel-air mixture in the first cylinder, to ignite the fuel-air mixture in the first cylinder, and to exhaust the combusted fuel-air mixture from the first cylinder.