Patent ID: 8015966

Claim:
An oil circulation device for an internal combustion engine comprising: a separator/decanter device configured to extract oil contained in an oil/gas mixture; a cylinder housing in which at least one combustion chamber is formed; a pressurized oil supply duct configured to carry pressurized oil to movable portions of the engine; and an oil return circuit forming a siphon, the oil return circuit comprising at least one canula having a top end that opens into an oil outlet of the separator/decanter device to collect decanted oil therein and a bottom end that is immersed in an oil reservoir having an aperture opening freely into a plane situated between the top end and the bottom end of the canula, wherein the reservoir is made in an insert inserted in a sealed manner into a passageway formed through a wall of the pressurized oil supply duct, the insert simultaneously forming a plug to close off the oil supply duct and an oil reservoir.