초록 ▼

An internal combustion engine having a cylinder and piston located therein has a charge motion control valve for controlling kinetic energy within an air charge flowing through an intake runner and into the cylinder of the engine. The charge motion control valve includes an actuator for controlling

An internal combustion engine having a cylinder and piston located therein has a charge motion control valve for controlling kinetic energy within an air charge flowing through an intake runner and into the cylinder of the engine. The charge motion control valve includes an actuator for controlling the position of the valve and an aerodynamic, wing-shaped valve disc being rotatable from a closed position to one or more open positions. The valve disc has leading and trailing segments. The leading segment masks airflow at small opening values of the valve and the trailing segment acts to prevent flow separation when the valve is in a wide-open throttle position.

대표청구항 ▼

[ What is claimed is:] [1.] An internal combustion engine comprising: at least one cylinder;at least one intake runner for providing charge air to the cylinder;a poppet valve, located in one end of the intake runner, for admitting charge air into the cylinder;a charge motion control valve for contro

[ What is claimed is:] [1.] An internal combustion engine comprising: at least one cylinder;at least one intake runner for providing charge air to the cylinder;a poppet valve, located in one end of the intake runner, for admitting charge air into the cylinder;a charge motion control valve for controlling the kinetic energy within charge air flowing through the intake runner, with the charge motion control valve comprising:an actuator for controlling the position of the charge motion control valve;an aerodynamic, wing-shaped valve disc being rotatable from a closed position to one or more open positions, with the valve disc being operatively connected with the actuator, and with the valve disc comprising:a leading segment, facing upstream when the valve disc is in its open position, with the leading segment being configured such that at small openings of the charge motion control valve, flow past the leading segment is masked; anda trailing segment, facing downstream when the valve disc is open, with the trailing segment being configured such that when the valve disc is in a fully open position, airflow past the valve disc remains attached to the valve disc.