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. An internal combustion engine with liquid cooling, comprising:
at least one exhaust gas line; at least one coolant jacket; 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, and a turbine including a turbine casing for utilizing enthalpy of hot exhaust gases, the turbine including at least one flow duct for carrying the exhaust gas through the casing, wherein the at least one coolant jacket comprises at least one coolant jacket integrated in the turbine casing and the at least one exhaust gas line comprises the at least one flow duct, wherein the surface structure includes at least one knob-shaped element, the at least one knob-shaped element projecting from the common boundary wall into the at least one coolant jacket.