Patent ID: 6787033
Filing Date: 2004-09-07
Classification: B01D,Y10S

Abstract:
A filter, comprising:a housing; an inlet port; an outlet port; a first filter element contained inside of the housing, the first filter element comprising a tubular shaped first filtering media; a bypass filter element comprising a tubular shaped bypass filtering media, the bypass filtering media disposed radially inside of the first filtering media with the bypass filtering media extending through an area between opposed axial ends of the first filtering media; a venturi conduit extending at least partially through the bypass filter element, the venturi conduit having a first entrance port and a second entrance port, the second entrance port being proximate a narrowed neck section of the of the venturi conduit for creating a venturi effect for drawing fluid through the bypass filtering media; a first collection chamber between the bypass filter element and the first filter element; a second collection chamber between the venturi conduit and the bypass filter element; wherein the filter defines a first flow path for fluid running from the inlet port, through the first filter element, through the first collection chamber to the first entrance port, and through the venturi conduit to the outlet port; and wherein the filter defines as second flow path for fluid running from the inlet port, through the first filter element to the first collection chamber, through the bypass filter element to the second collection chamber through the second entrance port and to the outlet port.