Rotary disc atomizer
AssigneeSpraying Systems Co.
InventorJames Haruch
Life of this patent
Estimating the term…
Abstract
A rotary disc atomizer adapted to generate relatively precisely controlled, uniformly sized spray droplets whether mounted in a vertical position or in significantly tilted positions. The atomizer includes a power driven rotary disc having a tapered fluid dispensing surface, a liquid supply whirl chamber in coaxial relation to the disc, and a liquid feed arrangement adapted to tangentially feed liquid into the whirl chamber so that it is rapidly moved in a relatively uniform thin sheet about the chamber and then exits in an annular uniform flow centrally onto the dispensing surface of the disc. The centrifical forces of the swirling feed liquid permit the atomizer to be mounted in substantially tilted positions without effecting the uniformity of the spray output or droplet size.
Claims19
A rotary liquid atomizer comprising of a disc mounted for rotational movement about a central axis and defining a fluid dispensing surface that terminates at the outer periphery of said disc, means for rotatably driving said disc, said disc being formed with a central annular fluid supply chamber having an annular discharge opening in communication with said dispensing surface, means extending into said supply chamber for feeding a controlled uniform thin sheet of liquid whirling in a tangential direction such that said liquid accumulates in rapidly moving uniform fashion about the periphery of said chamber, said annular discharge opening having a diameter less than the diameter of said supply chamber such that when liquid accumulates in said supply chamber to the level of said discharge opening the liquid will exit from said discharge opening centrally onto said dispensing surface in a uniform annular flow for movement in the form of a thin film to the outer periphery thereof by centrifugal forces resulting from the rotation of said disc, said dispensing surface of said disc being formed with a plurality of closely spaced radial grooves extending outwardly from the center of said dispensing surface to the peripheral edge thereof for guiding movement of the liquid to said peripheral edge, whereby said liquid film is discharged from said disc in substantially uniform sized droplets.
A rotary liquid atomizer comprising of a disc mounted for rotational movement about a central axis and defining a fluid dispensing surface that terminates at the outer periphery of said disc, means for rotatably driving said disc, means defining a liquid supply chamber in coaxial relation to the rotary axis of said disc, said supply chamber having an annular discharge opening, means including a liquid passage with an outlet in the peripheral wall of said supply chamber for tangentially feeding a controlled pressurized stream of liquid into said supply chamber such that liquid accumulates in rapidly moving uniform fashion about the peripheral wall of said supply chamber, said annular discharge opening having a diameter less than the diameter of said supply chamber such that when liquid accumulates in said supply chamber to the level of said discharge opening the liquid will exit from said discharge opening centrally onto said dispensing surface in a uniform annular flow for movement in the form of a thin film to the outer periphery thereof by centrifugal forces resulting from rotation of said disc, whereby said liquid film is discharged from said disc in substantially uniform sized droplets.
A rotary liquid atomizer comprising of a disc mounted for rotational movement about a central axis and defining a fluid dispensing surface that terminates at the outer periphery of said disc, means for rotatably driving said disc, said disc being formed with annular liquid supply chamber centrally in the top thereof, said supply chamber having a closed bottom and an upper annular discharge opening communicating with said fluid dispensing surface, means for tangentially feeding a pressurized stream of liquid to be atomized into said supply chamber as said disc is rotated such that said liquid accumulates in rapidly moving fashion about the periphery of said chamber, said annular discharge opening having a diameter less than the diameter of said supply chamber such that when liquid accumulates in said supply chamber to the level of said discharge opening the liquid will exit from said discharge opening in a controlled uniform annular flow onto said dispensing surface for movement in the form of a thin film to the outer periphery thereof by centrifugal forces resulting from rotation of said disc, said dispensing surface of said disc being formed with a plurality of closely spaced radial grooves extending outwardly from the center of said dispensing surface to the peripheral edge thereof for guiding movement of the liquid to said peripheral edge, whereby said liquid film is discharged from said disc in substantially uniform sized droplets.
Dependencies are inferred from the claim text.