Voltage assisted painting system

Patent metadata

Field	Value
Publication number	US-12383914-B2
Application number	US-202217710907-A
Country	US
Kind code	B2
Filing date	Mar 31, 2022
Priority date	Mar 31, 2022
Publication date	Aug 12, 2025
Grant date	Aug 12, 2025

Abstract

A voltage assisted painting system includes a housing, at least one nozzle, and at least one electrode. The housing has a conduit for receiving paint from an external source into the housing. The at least one nozzle is disposed in the housing. The at least one nozzle has an inlet that is fluidly connected to the conduit to receive paint from the conduit. The at least one nozzle has an outlet that dispenses paint. The at least one electrode is provided at the housing at a location downstream of the inlet with respect to the conduit. The at least one electrode is configured to generate a magnetic field in the vicinity of the outlet.

First claim

What is claimed is:

1. An voltage assisted painting system comprising:
a housing having a conduit for receiving paint from an external source into the housing;
at least one nozzle disposed in the housing, the at least one nozzle having an inlet that is fluidly connected to the conduit to receive paint from the conduit, the at least one nozzle having an outlet that dispenses paint, the nozzle inlet being larger than the nozzle outlet, the inlet and the outlet being continuously connected by a sidewall of the nozzle tapering from the nozzle inlet to the nozzle outlet; and
at least one first electrode provided at the housing at a location downstream of the inlet with respect to the conduit, the at least one first electrode being provided on the at least one nozzle or the at least one nozzle defining the at least one first electrode, the at least one first electrode being configured to generate a magnetic field in the vicinity of the outlet to induce droplet formation in the paint dispensed from the nozzle outlet.

2. The voltage assisted painting system according to claim 1 , wherein
at least one second electrode is provided adjacent to the at least one outlet of the at least one nozzle.

3. The voltage assisted painting system according to claim 2 , wherein
the at least one second electrode includes a plurality of electrodes that are arranged in a symmetrical array around the at least one outlet.

4. The voltage assisted painting system according to claim 1 , wherein
the at least one nozzle includes a metallic body capable of conducting electricity.

5. The voltage assisted painting system according to claim 4 , wherein
the metallic body has the at least one first electrode.

6. The voltage assisted painting system according to claim 5 , wherein
the at least one first electrode is formed as part of the metallic body.

7. The voltage assisted painting system according to claim 6 , wherein
the metallic body includes a first section and a second section that is electrically connected to the first section so that the first and second sections together define the first electrode of the metallic body.

8. The voltage assisted painting system according to claim 7 , wherein
the metallic body further includes a third section and a fourth section that is electrically connected to the third section so that the third and fourth sections together define a second electrode of the metallic body.

9. The voltage assisted painting system according to claim 8 , wherein
the metallic body further includes a fifth section and a sixth section that is electrically connected to the fifth section so that the fifth and sixth sections together define a third electrode of the metallic body.

10. The voltage assisted painting system according to claim 9 , wherein
the first and second sections are disposed on opposite sides of the nozzle with respect to each other,
the third and fourth sections are disposed on opposite sides of the nozzle with respect to each other, and
the fifth and sixth sections are disposed on opposite sides of the nozzle with respect to each other.

11. The voltage assisted painting system according to claim 1 , wherein
the at least one nozzle includes a plurality of nozzles, each of the plurality of nozzles having a respective inlet that is fluidly connected to the conduit that receives paint.

12. The voltage assisted painting system according to claim 11 , wherein
the plurality of nozzles are arranged in an array of successive rows and columns within the housing.

13. The voltage assisted painting system according to claim 12 , wherein
the plurality of nozzles are made of metallic material capable of conducting electricity.

14. The voltage assisted painting system according to claim 13 , wherein
each of the plurality of nozzles are in electric communication with each other.

15. The voltage assisted painting system according to claim 14 , further comprising
a voltage regulator that is electrically connected to each of the plurality of nozzles to regulate electric current to the nozzles.

16. The voltage assisted painting system according to claim 11 , wherein
the housing includes a paint reservoir that receives paint from the conduit.

17. The voltage assisted painting system according to claim 16 , wherein
the housing includes a first airflow channel extending through the plurality of channels in a first direction to enable external air to flow through the plurality of channels in the first direction.

18. The voltage assisted painting system according to claim 17 , wherein
the housing includes a second airflow channel extending through the plurality of channels in a second direction that is transverse to the first direction to enable external air to flow in the second direction.

Assignees

• Nissan North America Inc

Inventors

• Patil Sandeep
• Gumeci Cenk

Classifications

• B05B5/0533

  Electrodes specially adapted therefor; Arrangements of electrodes · CPC title

• B05B5/03

  characterised by the use of gas {, e.g. electrostatically assisted pneumatic spraying (B05B5/04, B05B5/043, B05B5/047 take precedence)} · CPC title

• B05B7/0483

  with gas and liquid jets intersecting in the mixing chamber · CPC title

• B05B7/0884

  the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being aligned · CPC title

• B05B5/043

  using induction-charging · CPC title