Vaporizers and apparatuses for forming glass optical fiber preforms comprising the same

US11649186B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Stephen Mitchell Carlton · Rue Perrin Frères, US
• Paul Andrew Chludzinski · Berlin, US
• Jonathan Robert Greveling · Concord, US
• Nikolaos Pantelis Kladias · Horseheads, US
• Robert Walter Nason · Wilmington, US
• Abhijit Rao · Bengaluru, IN

Key dates

• Filing date: Feb 5, 2020
• Grant date: May 16, 2023
• Expiry date: Nov 10, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03B2207/85
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Vaporizers and systems for vaporizing liquid precursor for forming glass optical fiber preforms are provided. The vaporizer includes an expansion chamber at least partially enclosed by a side wall, the expansion chamber comprising an upper end and a lower end with the side wall disposed between the upper end and the lower end. The vaporizer further includes a closed-loop liquid delivery conduit positioned in the expansion chamber proximate to the upper end of the expansion chamber, wherein the closed-loop liquid delivery conduit comprises a plurality of nozzles oriented to direct a spray of liquid precursor onto an inner surface of the side wall. Further, the vaporizer includes at least one supply conduit positioned proximate the upper end of the expansion chamber and coupled to the closed-loop liquid delivery conduit, and a vapor delivery outlet coupled to the expansion chamber and configured to direct vaporized liquid precursor from the expansion chamber.