Internal combustion engine with liquid cooling

摘要

Example embodiments for reducing thermal load in one or more exhaust gas lines are provided. One embodiment includes an internal combustion engine with liquid cooling, comprising at least one exhaust gas line, at least one coolant jacket, and a common boundary wall separating the at least one exhaust gas line and the at least one coolant jacket, wherein the common boundary wall includes a surface structure provided on sides of the coolant jacket in at least one locally limited region. In this way, the surface structure on the sides of the coolant jacket may increase heat transfer to reduce thermal loading.

主权项

1. A method for cooling a cylinder head, comprising:
providing a coolant jacket in the cylinder head, the coolant jacket separated from at least one exhaust line by a boundary wall, wherein a turbine is coupled to an exhaust outlet; and providing a plurality of elements projecting from the boundary wall into the coolant jacket, the plurality of elements positioned along the boundary wall only in thermally loaded regions, wherein the thermally loaded regions comprise regions of the coolant jacket adjacent to a confluence of two or more exhaust gas lines.