Method for manufacturing an electro-filter

A method for manufacturing an electro-filter for separating a mixture of gas and oil drops originating from an internal combustion engine, said electro-filter comprising:

• 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 comprising:
• implementation of a first injection cycle comprising injecting the at least one collector electrode with the electrically-conductive plastic material into a first cavity of a mold,
• implementation of an overmolding cycle comprising:
• displacing the at least one injected collector electrode into a second cavity of the same mold or into a cavity of another mold;
• and
• overmolding the at least one oil/gas separation chamber of the at least one body at least on the at least one injected collector electrode with an electrically-insulating plastic material.