Importance

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Abstract

An internal combustion engine having in the piston crown or cylinder head a combustion chamber in the shape of a body of revolution with a constricted throat. At the end of the compression stroke, the combustion chamber accommodates substantially all of the air for combustion which is imparted a rotation about the longitudinal axis of the combustion chamber. Taking into account the respectively specified combustion chamber volume, the maximum combustion chamber diameter, the combustion chamber depth, the inclination or curvature of the combustion chamber wall, and the inclination or curvature of the transition from the combustion chamber wall to the combustion chamber bottom are matched in such a way that, utilizing the friction occurring between the combustion chamber wall and the rotating air, a boundary layer or interface flow is produced, resulting in velocity components of a predetermined intensity extending in a direction at least substantially perpendicular to the rotating motion of the air, the velocity components in turn generating secondary turbulence.

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First Claim