Transformer with a liquid cooled case and a method for making the liquid cooled case
US4172243A · kind A · utility
4Cited by
15References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1977 |
| Grant date | Oct 23, 1979 |
| Priority date | — |
| Expiry date | Jun 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49988
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is an electrical transformer having a core and coil assembly mounted in a hollow case and a method of manufacturing the case. The hollow case has cast at least one cooling duct within it. Each cooling duct is a hollow tube, formed into a loop, with its ends brazed into a manifold. The manifold has nipples brazed into it which provide a connecting passage for the flow of coolant through the nipples into the manifold and through the tubes that have been cast within the transformer case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.