Patent ID: 7462016
Filing Date: 2008-12-09
Classification: A01K,F04F,Y02A

Abstract:
1. A pump for transporting liquid by induced flow, said pump comprising a housing having a primary intake for primary flow said primary intake having an inlet diameter, a secondary intake for induced flow, said secondary intake forming a pump bore diameter formed by an internal surface and an external surface, an internal pump chamber for intermixing said primary flow and said induced flow, and an outlet for discharge, said primary intake and said secondary intake terminating in said internal pump chamber, an orifice forming a primary flow path for said primary flow circumferentially with respect to an induced flow path of said induced flow, said primary flow and said induced flow intermixing in said internal pump chamber, said orifice having an orifice diameter having a circumferential gap between said primary intake and said housing directing said primary flow into said pump chamber at an acute angle to an axis defined by said induced flow, said orifice including flutes defined by spaced apart surface depressions formed in said external surface of said secondary intake, wherein said depressions do not extend through said secondary intake to the internal surface thereof, an enlarged mouth extending a distance within said internal surface of said secondary intake, said mouth having a constant diameter forming said secondary flow with a constant diameter whereby reduced swirl formation is achieved subsequent to intermixing of said primary flow and said secondary flow.