Method of making a heat exchanger
US12422197B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Mar 26, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2275/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of making a heat exchanger that includes providing a plurality of tubes. Each of the plurality of tubes has exterior cladding on an exterior surface, interior cladding on an interior surface, and a weld seam extending along the length of the plurality of tubes. The method further includes arranging the plurality of tubes such that each of the plurality of tubes is inserted into a corresponding header slot with the weld seams of each of the plurality of tubes oriented downward with respect to gravity, and brazing each of the plurality of tubes and the header after each tube has been inserted into a corresponding header slot. The brazing causes the interior cladding to melt and pool inside the plurality of tubes and along an interior side of the weld seams to form a clad cover portion encases debris generated while forming the weld seams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.