Apparatus for the treatment of gases in a positive crankcase ventilation system

An apparatus for the treatment of gases in a positive crankcase ventilation system of an internal combustion engine, in which said gases, containing unburned, usefully combustible hydrocarbon materials, and pollutant matter, are drawn from said crankcase of said engine, and directed to an air intake portion of said engine for recirculation through and further combustion in said engine, said apparatus for the treatment of gases in a positive crankcase ventilation system comprising:

• a housing, sealably enclosing a gas treatment chamber;
• a source of gas filtering media, capable of separating said pollutant matter from said gases, upon exposure of said gases to said gas filtering media;
• first inlet means operably arranged in said housing for directing flow of said gas filtering media from said source into said gas treatment chamber;
• first outlet means operably arranged in said housing for directing flow of said gas filtering media back toward said source from said gas treatment chamber, after treatment of said gases;
• means for cleaning said gas filtering media after said gas filtering media has been exposed to and has filtered said gases, to remove said pollutant matter from said gas filtering media;
• second inlet means operably arranged in said housing for directing flow of said gases from said crankcase into said gas treatment chamber;
• second outlet means operably arranged in said housing for directing flow of said treated gases, after exposure to said gas filtering media, from out of said gas treatment chamber toward said air intake portion of said engine;
• and
• means for directing flow of said gases through said gas filtering media, while said gases and said gas filtering media are in said gas treatment chamber.