Abstract: A unique cylindrical filter assembly (10) having a flow path in one end (31) through a filter media (18) and out the other end with the inlet (12) and the outlet (14) disposed on the longitudinal center line of the cylindrical filter assembly (10) and with the filter media (18) having an elongated annular shape and being disposed around a center chamber (34). Filter assembly (10) includes a pressure relief valve (22) positioned in the center chamber (34) near the inlet port (12) so when the pressure relief valve (22) opens liquid flows directly into the center chamber (34). A housing member (40) can be provided which covers the outlet end (14) and includes louvers (42) for dispersing the liquid as it exits the filter (10).

Abstract: An engine induction air filter element and a positive crankcase ventilation breather element are combined into a single discardable cartridge which is received within an air cleaner housing in a vehicle induction air system. The induction air filter media is comprised of an array of pleats, the tips of which respectfully define the upstream and downstream planes of the filter. A sealant material circumscribes the perimeter of the downstream plane of the induction air filter, and the sealant material on one end thereof includes a projecting portion which supports the breather air filtering media on the one side of the induction air filtering media, with a gap therebetween which receives a partition which is a part of the air cleaner housing. The partition includes a flow restricting aperture, which is closed by the transverse surface of one of the end pleats of the induction air filtering media.