Patent ID: 7055497
Filing Date: 2006-06-06
Classification: F02D,F02M

Abstract:
1. A multi-cylinder internal combustion engine comprising: a plurality of cylinders; a cylinder array including two or more of the cylinders disposed in series; a throttle body assembly including a predetermined number of throttle bodies formed with air-intake channels in communication with air-intake ports formed for each cylinder in a cylinder head; and throttle valves disposed in the respective air-intake channels; wherein the respective throttle valves are opened and closed by electric motors provided independently for the respective throttle valves, the air-intake ports belonging to end cylinders located at the ends of the cylinder array in a direction of an arrangement of the cylinders of the cylinder array being formed to approach a plane positioned at the center of the cylinder array in the direction of the arrangement, which is a center plane orthogonal to the direction of the arrangement, as they approach an entrance thereof, and wherein an entrance of a respective air-intake port is formed in the cylinder head.