Methods and systems for delivering fluid through horns for applying multiple component material

摘要

Embodiments of a spray gun incorporating techniques for delivering a spray fluid between, next to, or inside of horn holes of an air atomization cap are provided. In accordance with certain embodiments, the spray gun includes a fluid delivery tip assembly. The spray gun also includes an air atomization cap disposed coaxially around the fluid delivery tip assembly, wherein the air atomization cap comprises one or more shaping air horns configured to deliver shaping air, and each shaping air horn comprises a first spray fluid passage configured to deliver a first spray fluid between, next to, or inside of one or more shaping air streams from the shaping air horn. The spray gun also includes a second spray fluid passage configured to deliver a second spray fluid to a fluid tip exit of the fluid delivery tip assembly.

主权项

1. A spray coating gun, comprising:
a fluid delivery tip assembly; an air atomization cap disposed coaxially around the fluid delivery tip assembly, wherein the air atomization cap comprises one or more shaping air horns configured to deliver shaping air, and each shaping air horn comprises a first spray fluid passage configured to deliver a first spray fluid inside of one or more shaping air streams from the shaping air horn, wherein each shaping air horn comprises a shaping air horn orifice on an inner wall of the shaping air horn, the first spray fluid passage comprises a tube extending through the shaping air horn orifice, and a shaping air stream of the one or more shaping air streams flows around the tube through the shaping air horn orifice; and a second spray fluid passage configured to deliver a second spray fluid to a fluid tip exit of the fluid delivery tip assembly.