Heat exchanger with oval or oblong tubes, and a method of assembly of such a heat exchanger
US5901784A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1996 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53122
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger, especially a heating or cooling radiator for a motor vehicle, has a tube bundle consisting of oval or oblong tubes which extend through a matrix of cooling fins. End portions of the tubes are introduced into holes in a header plate, with a compressible sealing gasket being interposed, the gasket having collar portions surrounding the tube end portions, and the latter having an oval or oblong cross section. The major axis of each tube end is equal to the major axis of the body of the tube, while the minor axis of the tube end is greater than the minor axis of the body of the tube as a result of the tube having been expanded or flared during the assembly of the heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.