Heat exchanger with aluminum alloy clad tube and method of manufacture

US12050067B2 · kind B2 · utility

Assignee

• CARRIER CORPORATION · US

Inventors

• Mary Teresa Lombardo · Windsor, US
• Ruoshuang Huang · Farmington, US
• Jefferi J. Covington · Baldwinsville, US
• Matthew Patterson · Syracuse, US
• Anais Espinal · Burlington, US
• Mark R. Jaworowski · Sarasota, US
• Aaron T. Nardi · Town of East Granby, US
• Catherine Thibaud · Cork, IE
• Tobias H. Sienel · Manchester, US
• Luis Felipe Avila

Key dates

• Filing date: Dec 19, 2019
• Grant date: Jul 30, 2024
• Expiry date: Jan 14, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F2260/02
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A heat exchanger is disclosed. The heat exchanger includes a hollow tube extending from a tube inlet to a tube outlet. The hollow tube includes a wall that includes a core of a first aluminum alloy, and a cladding over the core of a second aluminum alloy. The second aluminum alloy is less noble than the first aluminum alloy and includes an alloying element selected from tin, indium, or gallium, or combinations thereof. A first fluid flow path is disposed along an inner surface of the wall from the tube inlet to the tube outlet, and a second fluid flow path is disposed across an outer surface of the wall.