Patent ID: 8052768
Filing Date: 2011-11-08
Classification: F02M

Abstract:
1. An air filter assembly for removing dust in air entering the filter with an internal combustion engine fuel system, comprising: a housing having: an air inlet formed in an upper portion of the housing; and an air outlet; a plurality of vertically extending baffles disposed within the housing between the upper portion of the housing and a bottom portion of the housing, such baffles forming a plurality of vertically extending channels interconnected horizontally through horizontally interconnecting channels disposed adjacent the upper portion of the housing and an opposing bottom portion of the housing, a first one of the vertically extending channels receiving the air entering the housing from the air inlet, such air then passing laterally outwards in the housing from the first one of the vertically extending channels successively to other ones of the vertically extending channels in a serpentine flow successively upwards and downwardly and through the horizontally interconnecting channels and then finally exiting the housing through the air outlet; and wherein the bottom of the housing extends across a bottom of each one of the plurality of channels for retaining dust within the housing; and a filter disposed in one of the plurality of vertically extending channels in a path of the serpentine flow of the air passing through such one of the vertically extending channels.