Patent ID: 8443768

Claim:
A cylinder liner for an internal combustion engine, comprising: a cylindrical body configured to receive a piston assembly, the cylindrical body including a main body portion configured for selective engagement with an engine bore; and an upper flange configured to support the cylindrical body within the engine bore; wherein the cylindrical body defines an undulating cooling gallery adjacent the upper flange, the undulating cooling gallery defining a coolant flow path extending about at least a portion of a perimeter of the cylindrical body; wherein the coolant flow path is defined in part by a radially inner surface of the cooling gallery delimiting the coolant flow path between an axially upper surface and an axially lower surface such that coolant is forced to flow between the axially upper and lower surfaces about the portion of the perimeter of the cylindrical body; and wherein at least one of the axially upper and lower surfaces traverses axially in a first direction, axially in a second direction opposite the first direction, and axially in the first direction again with respect to the cylindrical body about the portion of the perimeter of the cylindrical body.