Liquid-cooled cylinder head

Abstract

The invention relates to a liquid-cooled cylinder head for an internal combustion engine with a top-down cooling concept, having a lower cooling chamber adjoining a fire deck and an upper cooling chamber which is separated from the lower cooling chamber by an intermediate deck and which is largely further away from the fire deck than the lower cooling chamber, wherein the lower cooling chamber and the upper cooling chamber are connected fluidically together in the region of a receiving sleeve, arranged centrally with respect to the cylinder, for a component leading centrally into a combustion chamber, via at least one annular overflow channel, formed by an overflow opening and the receiving sleeve, in the intermediate deck, wherein a diameter of the substantially circular overflow opening is larger than an outside diameter of the receiving sleeve, having an inlet channel arrangement with at least two inlet openings leading into the combustion chamber and an outlet channel arrangement with at least two outlet openings leading into the combustion chamber. In order to achieve optimal cooling of thermally critical regions, the invention provides that the overflow opening is arranged eccentrically with respect to the receiving sleeve, wherein a central axis of the overflow opening, extending through a center of the overflow opening, is spaced apart from the sleeve axis of the receiving sleeve.

Dependencies are inferred from the claim text.