Method for manufacturing a heat exchanger
US5088193A · kind A · utility
20Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Nov 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49393
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A heat exchanger includes a pair of headers, a plurality of flattened oval heat exchange tubes, and a plurality of fins positioned between the headers over the length of the heat exchange tubes. The tubes are connected to the headers through a plurality of elongated holes in the header that have tapered lips. The lip taper forms an annular depression around the tube upon insertion that provides a good structural integrity. The connector holes are formed in each of the headers by a pressing method that eliminates header warping and produces dimensionally accurate hole shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.