Return line filter

Details Return line filter Return line filter

B - Operations, Transporting

01

D

182/65

B01D 27/10 (2006.01) B01D 29/00 (2006.01) B01D 35/027 (2006.01) B01D 35/147 (2006.01)

Patent

CA 1138782

Abstract of the Disclosure An improved return line filter is provided for use with a fluid system having a fluid reservoir which is at least partly filled with a fluid. The return line filter comprises an elongated housing having an open top and a partially open bottom and in which the housing is positioned within the reservoir so that the lower end of the housing is submerged in the reservoir fluid. A fluid inlet is formed on the lower end of the housing. A filter assembly is provided for use with the housing and comprises a tubular filter element open at each end and a holder assembly which is detachably secured to one axial end of the filter element. The entire filter assembly is insertable through the open top of the housing so that the tubular filter element is positioned co- axially around and spaced radially outwardly from a portion extending upwardly from the housing thus forming an annular chamber therebetween. Fluid seals sealingly connect both axial ends of the filter element with the housing portion while a fluid passageway fluidly connects the housing inlet with the annular inlet chamber. In addition, a deflection and antifoam tube secured to the holder assembly is positioned coaxially around and spaced radially outwardly from the filter element so that fluid flow from the filter element is deflected downwardly toward the partially open bottom of the housing. This construction for the filter assembly creates a reverse fluid flow in which the fluid must first flow upwardly from the bottom of the housing, out through the filter element and subsequently down through the lower open end of the housing.

341692

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