| 摘要 |
An intake port of an internal combustion engine having an intake passage curved to a certain direction and communicated with a combustion chamber of the engine to send air into the combustion chamber, provided with a groove provided in a wall at a side near a center of curvature of said intake passage in the wall defining the intake passage and extending along the flow of air in the intake passage, at least one long edge formed by one side wall of the wall defining said groove and the wall adjoining said side wall in the wall defining the intake passage, extending along the flow of air in the intake passage, and projecting out toward the inside of the intake passage, and a bent part provided at the wall of the side near the center of curvature of the intake passage in the wall defining the intake passage in proximity to a line connecting the intake passage and combustion chamber and extending in a horizontal direction with respect to the flow of air in the intake passage. <IMAGE>An intake port of an internal combustion engine having an intake passage curved to a certain direction and communicated with a combustion chamber of the engine to send air into the combustion chamber, provided with a groove provided in a wall at a side near a center of curvature of said intake passage in the wall defining the intake passage and extending along the flow of air in the intake passage, at least one long edge formed by one side wall of the wall defining said groove and the wall adjoining said side wall in the wall defining the intake passage, extending along the flow of air in the intake passage, and projecting out toward the inside of the intake passage, and a bent part provided at the wall of the side near the center of curvature of the intake passage in the wall defining the intake passage in proximity to a line connecting the intake passage and combustion chamber and extending in a horizontal direction with respect to the flow of air in the intake passage. <IMAGE>
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