Patent · US Expired

Waste gas heat exchanger

US7543471B2 · kind B2 · utility

3Cited by

10References

18Claims

0Family size

Assignee

Behr GmbH & Co. · DE

Inventors

Arndt Birkert · Bretzfeld, DE
Hans Glockl · Stuttgart, DE
Knut Haarscheidt · Stuttgart, DE

Key dates

Filing date	Feb 21, 2006
Grant date	Jun 9, 2009
Priority date	—
Expiry date	Feb 21, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4935
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to a heat exchanger, especially a heat exchanger for motor vehicles, comprising a bank of tubes through which a gaseous medium flows and around which a liquid coolant flows. The ends of said tubes are received in tube plates and are connected to the same in a material fit. The inventive heat exchanger also comprises a housing jacket which surrounds the bank of tubes and is connected, at the end thereof, to the tube plates. A coolant flows through said housing jacket. The tubes, tube plates and housing jacket are produced from a heat-resistant and corrosion-resistant metallic alloy. According to the invention, the housing jacket comprises at least one surrounding expansion flange.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.