Aluminum heat exchanger
US4368776A · kind A · utility
19Cited by
3References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 11, 1981 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Jun 11, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12736
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An aluminum heat exchanger with excellent corrosion resistance and particularly suited for adaptation as radiator for automobiles, the heat exchanger having a 2- or 3-layer coating film structure consisting of a zinc-diffused layer formed on the surface of an aluminum base and a waterproof organic film formed on the zinc-diffused layer with or without a phosphoric acid-chromate coating therebetween, whereby the surface of the aluminum base is not directly contacted with at least the water-containing heat exchange medium is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.