Heat exchanger assembly with magnesium barrier
US6234243A · kind A · utility
10Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Dec 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12764
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention involves a heat exchanger assembly comprising at least one aluminum based tube including magnesium, an aluminum based cladding, and at least one aluminum based component disposed adjacent the cladding. A brazing flux is applied to a joint between the cladding and the component to facilitate brazing in an ambient atmosphere. An aluminum based lithium enriched layer is disposed between the tube and the cladding to scavenge sufficient oxygen from the ambient atmosphere to form an effective barrier against the defusion of magnesium from the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.