Patent ID: 7998346
Filing Date: 2011-08-16
Classification: B01D,B01F,F01M,Y10T

Abstract:
1. An additive cartridge for dispersing an additive within a filter housing, the additive cartridge comprising: an additive cartridge housing having a top, a bottom and an outer peripheral wall extending therebetween, the outer peripheral wall defining an exterior surface of the additive cartridge housing, the additive cartridge housing defining a receiving area for receipt of the additive therein; a fluid inlet path through the outer peripheral wall of the additive cartridge housing, the fluid inlet path providing a means for increasing a pressure within the receiving area, the fluid inlet path having an inlet opening disposed adjacent the outer peripheral wall of the additive cartridge housing; and a fluid outlet path through the outer peripheral wall of the additive cartridge housing, the fluid outlet path providing a means for dispersing the additive from the receiving area when the pressure within the receiving area exceeds a predetermined value, the fluid outlet path having an outlet opening disposed adjacent to the outer peripheral wall of the additive cartridge housing, the outlet opening being covered by a canopy on the exterior surface of the outer peripheral wall and extending over the outlet opening, the canopy configured to deflect fluid flowing in a first direction from the top to the bottom and along the outer peripheral wall of the additive cartridge housing away from the outlet opening, the canopy defining an exit opening facing in the direction of the first direction and wherein the inlet opening of the fluid inlet path is positioned to receive fluid flowing in the first direction, wherein the outlet opening of the fluid outlet path and the inlet opening of the fluid inlet path are each located in an inlet flow path of the fluid flowing into the filter housing; and wherein fluid flow of the additive through the fluid outlet path is controlled by varying an inlet opening of the fluid outlet path.