US 4,795,095 A · Rotary atomizer

Abstract

A rotary atomizer includes a generally circular integrated fan/cone assembly coupled to an hydraulic motor to effect the rotation thereof. The hydraulic motor is positioned upon and extends through a generally circular fixed shroud which is downwardly divergent and includes a center hub with air intake apertures. The integrated fan/cone assembly is positioned immediately below and within the shroud and further includes a disc-shaped base on the upper surface of which are disposed a plurality of spaced curvilinear blades and within the center portion thereof is located a truncated cone having an upper center hub and a plurality of spaced radial grooves around the lower inner surface thereof. Each of the grooves is defined by a pair of spaced, tapered ribs each of which, in turn, terminates in a respective generally rectangular tooth which extends downward from and beyond the lower lip of the cone. Fluid is introduced onto the upper center hub of the cone and flows downward through apertures therein onto an upper, inner smooth portion of the cone and then into the spaced radial grooves therein to exit the cone via the teeth on the lower peripheral edge thereof. The fluid is thus formed into small uniform droplets in a relatively turbulence-free zone with the thus formed droplets then directed outwardly into the radial airflow generated above the cone by the curvilinear fan blades for dispersal of the droplets in a generally circular pattern.

Claims18

Dependent claims

A rotary atomizer comprising:

rotational drive means;
air displacement means coupled to said rotational drive means and rotated about a central axis for directing air radially outward therefrom;
a hollow cone positioned beneath said air displacement means and aligned along said central axis, wherein said cone is coupled to and rotationally displaced by said rotational drive means for forming a fluid provided to an upper, inner portion of said cone into a plurality of uniform sized drip lets and for discharging the thus formed droplets in an outward radial direction from a lower, peripheral edge thereof;
isolation means positioned between said air displacement means and the lower, peripheral edge of said cone for separating the radially directed air from the fluid droplets as they are discharged from said cone, wherein said isolation means includes a generally flat disc having a center aperture defined by said cone and wherein said air displacement means is positioned on an upper surface of said disc;
an extension lip disposed on said cone and positioned between the lower edge of said cone and said isolation means for providing displacement therebetween and reducing any turbulence generated by said isolation means to which the newly formed droplets may be subject;
and
fixed deflector means for directing the radially outward flowing air onto the radially outward directed fluid droplets in forming a uniform, continuous circular spray pattern.

4 more elements

Dependencies are inferred from the claim text.

Rotary atomizer

Life of this patent

Rotary atomizer

Life of this patent

Abstract

Claims18