Abstract A low-pressure nozzle for atomizing and dispersing a viscous fluid comprising a housing having a chamber and a diverging-wall mixing section. The chamber has inlets for the introduction of a dispersing fluid and an area of reduced cross section communicating with the mixing section. A conduit for the viscous fluid extends through the chamber to the diverging mixing section forming at the reduced cross section of the chamber a discharge outlet for the dispersing fluid. A spiral groove member is positioned in the conduit with one end of this member extending into the diverging mixing section with the grooves terminating in the mixing section by a reduction of depth of the grooves for deflecting outwardly fluid flowing in said grooves. A deflection plate is positioned in the mixing section to form an annulus between the edge of the deflection plate and the walls of the mixing section.
A nozzle according to claim 1 wherein the deflection plate is circular, having a serrated edge.
Claim 2
Dependent Claim
29 words
A nozzle according to claim 1 wherein said spirally grooved member is a square rod groove longitudinally on each face of the rod and twisted to provide the spiral.
Claim 3
Dependent Claim
37 words
A nozzle according to claim 3 wherein said grooves terminate in portion of the member extending into the diverging section by reduction of depth of said grooves to form a concaved curved surface at end of grooves.
Claim 4
Dependent Claim
41 words
A nozzle according to claim 4 wherein the conduit is flanged and is attached to the housing to seat the flanged portion of the conduit to the housing and an upper section of the conduit in the chamber in the housing.