Patent ID: 6261333
Filing Date: 2001-07-17
Classification: B01D,F02M,Y10S

Abstract:
An air filter for an internal combustion engine comprising:a) a housing having an upstream end, a substantially open downstream end, at least one primary air intake hole and at least one secondary air intake hole;b) primary air region disposed within said housing for receiving primary air from said at least one primary air intake hole;c) a secondary air region disposed within said housing for receiving secondary air from said secondary air intake hole;d) a barrier disposed within said housing, said barrier separating said primary air region from said secondary air region, said barrier separating primary air flow from secondary air flow wherein said barrier is insertable into and removable from said housing;e) a filter element disposed within said primary air region, said filter element filtering out particles in said primary air as it passed from said at least one primary air intake hole to said substantially open downstream end; andf) a venturi disposed within said housing adjacent to said downstream end, so that when primary air flows past said venturi there is a pressure drop in this primary air creating a vacuum pull of air from said secondary air region.