US 2010/0140375 A1 · ROTARY ATOMIZER

Abstract

In a rotary atomizer (10) including a rotating bell (92) secured to a rotating shaft (20a) of an air motor (20) held in an atomizer body, the rotating bell having a plurality of orifices (92a) for supplying paint to an object to be painted, the rotating bell being rotated to spray the paint toward the object to be painted, the rotary atomizer comprises a paint passage (102a) with a paint port (112c) at an end thereof fluidly communicating with the orifices of the rotating bell, and a water passage (108) arranged outside of the paint passage and having a water port at an end of the water passage leading to the orifices of the rotating bell. A needle (94) for opening and closing the paint port may be provided.

Claims10

Dependent claims

A rotary atomizer including a rotating bell secured to a rotating shaft of an air motor held in an atomizer body, the rotating bell defining a plurality of orifices for dispensing a paint toward an object to be painted, the rotation of the rotating bell atomizing the paint so as to spray the paint toward the object to be painted, the rotary atomizer comprising:

a paint passage having a paint port, at a distal end thereof, fluidly communicating with the orifices of the rotating bell;
a water passage, disposed outside of the paint passage, having a water port, at a distal end thereof, fluidly communicating with the orifices of the rotating bell;
and
the paint and water being simultaneously dispensed through the orifices.

1 more element

A rotary atomizer, comprising:

a manifold defining a paint supply passage, an air supply passage and a supply water passage;
an air motor held in a front part of the manifold, the air motor having a rotating shaft rotatable about a predetermined axis, the rotating shaft being rotationally driven by air supplied through the air supply passage;
a double tube assembly including an inner tube extending through the rotating shaft along the axis and a concentric outer tube having a inner diameter larger than the outer diameter of the inner tube, the outer tube extending through the rotating shaft along the axis so as to define a passage between the outer surface of the inner tube and the inner surface of the outer tube;
a rotating bell secured to the rotating shaft to rotate therewith, and defining a plurality of orifices for dispensing a paint toward an object to be painted;
the inner tube of the double tube assembly fluidly communicating with the paint supply passage of the manifold and the orifices of the rotating bell;
the passage between the inner and outer tubes of the double tube assembly fluidly communicating with the water supply passage of the manifold and the orifices of the rotating bell;
and
the paint and water being simultaneously dispensed through the orifices.

5 more elements

A rotary atomizer, comprising:

a manifold defining a paint supply passage, an air supply passage and a supply water passage;
an air motor held in a front part of the manifold, the air motor having a rotating shaft rotatable about a predetermined axis, the rotating shaft being rotationally driven by air supplied through the air supply passage;
a double tube assembly including an inner tube extending through the rotating shaft along the axis and a concentric outer tube having a inner diameter larger than the outer diameter of the inner tube, the outer tube extending through the rotating shaft along the axis so as to define a passage between the outer surface of the inner tube and the inner surface of the outer tube;
a rotating bell secured to the rotating shaft to rotate therewith, and defining a plurality of orifices for dispensing a paint toward an object to be painted;
a pneumatic trigger valve attached to the manifold, the trigger valve including a valve stem movable along the axis of the rotating shaft of the air motor between an open position and a closed position, a needle attached to the valve stem and extending through the inner tube of the double tube assembly;
and
the needle defining a valve body, at the distal end thereof, extendable beyond the distal end of the inner tube of the double tube assembly.

4 more elements

Dependencies are inferred from the claim text.

Rotary atomizer

Life of this patent

Rotary atomizer

Life of this patent

Abstract

Claims10