Patent ID: 6431461
Filing Date: 2002-08-13
Classification: B01D,F04D,F24D

Abstract:
An air purging circulator for a hydronic heating system, comprising:a motor; a pump housing having an inlet aperture and an outlet aperture, said pump housing having a horizontal frustoconical shape tapering from said inlet end to said outlet aperture, said inlet aperture connecting to an air purging reservoir, said air purging reservoir having a horizontal frusto-conical shape conforming with said horizontal frustoconical shape of said pump housing, said air purging reservoir being on a suction side of an impeller chamber, an outlet from said air purging reservoir connecting to said impeller chamber, said impeller chamber connecting to said outlet aperture in said pump housing; impeller means for pumping water in said hydronic heating system operably connected to said motor and located within said impeller chamber; said air purging reservoir being sized to permit reduction of velocity of circulating water in the hydronic system through said air purging reservoir, air contained in the circulating water separating from the circulating water while passing through said air purging reservoir and collecting in an upper portion of said air purging reservoir, said air purging reservoir having an air vent provided in said upper portion thereof to release air collected in said reservoir.