Patent ID: 7373911

Claim:
An engine oil return device for an engine having a cylinder head and a cylinder block, comprising: an oil pan; and an oil return path for returning oil that is supplied to the cylinder head, to the oil pan, wherein the oil return path includes at least one oil return main path and at least one oil return extension path; wherein the at least one oil return main path is disposed at a first side surface of the cylinder block; and wherein the at least one oil return extension path includes an upstream end and a downstream end; wherein the upstream end of the at least one oil return extension path is connected to the at least one oil return main path and wherein the downstream end of the at least one oil return extension path is positioned at a distance from the first side surface of the cylinder block such that the oil return extension path extends in a direction of a second side surface of the cylinder block, and wherein at least a portion of said at least one oil return extension path is defined by a portion of the oil pan.