Abstract: A method for manufacturing an electro-filter for separating a mixture of gas and oil drops including: at least one body including at least one oil/gas separation chamber, at least one emitter electrode, and at least one collector electrode made of an electrically-conductive plastic material. The manufacturing method includes at least the following steps: implementation of a first injection cycle having at least one step of injecting the collector electrode, implementation of an overmolding cycle having at least the following steps: displacement of the injected collector electrode into a second cavity of the same mold or into the cavity of another mold, overmolding at least the oil/gas separation chamber of the body at least on the collector electrode, with an electrically-insulating plastic material.

Abstract: A method for manufacturing an electro-filter for separating a mixture of gas and oil drops including: at least one body including at least one oil/gas separation chamber, at least one emitter electrode, and at least one collector electrode made of an electrically-conductive plastic material. The manufacturing method includes at least the following steps: implementation of a first injection cycle having at least one step of injecting the collector electrode, implementation of an overmolding cycle having at least the following steps: displacement of the injected collector electrode into a second cavity of the same mold or into the cavity of another mold, overmolding at least the oil/gas separation chamber of the body at least on the collector electrode, with an electrically-insulating plastic material.

Abstract: The inventive oil separator provided for de-oiling a gas exhausted from a crankshaft case (1) comprises oil collecting means (11) associated with a siphon (12) whose inlet inside the oil separator (7) is encompassed by an oil recovery chamber (13) provided with a perforated wall, at least a small oil recovery hole (14) arranged in the lowest part of the chamber (13) at the exit of the collecting means (11) and at least one depressurising small hole (15) which is arranged in the highest part of the chamber (13) above a clarified oil surface and is connected to the chamber (13) at a depressurising point (16). Said invention is usable for internal combustion engines.