Heat exchanger, in particular exhaust gas heat exchanger for motor vehicles
US8002022B2 · kind B2 · utility
8Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2006 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4935
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a heat exchanger, in particular an exhaust gas heat exchanger for motor vehicles, having tubes (3) through which a gas can flow, which are arranged in a housing casing (2) and around which a liquid coolant can flow, wherein the tubes (3) have tube ends which are held by tube bases. It is proposed according to the invention that the tubes are embodied as flat tubes (3), and that, at least one side of the tubes (3), the tube ends (3a, 3b) are flared to form an approximately rectangular cross section and can be soldered to the tube bases (7, 8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.