Patent · US Active

Exhaust gas heat transfer device

US9927183B2 · kind B2 · utility

0Cited by

8References

3Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Eberhard Pantow · Stuttgart, DE
Martin Bauer · Birkenfeld, DE
Peter Geskes · Esslingen am Neckar, DE

Key dates

Filing date	Mar 18, 2015
Grant date	Mar 27, 2018
Priority date	—
Expiry date	Oct 10, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F9/0236
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

The invention relates to an exhaust gas heat exchanger (1) with a housing (2), in which a tube bundle (3) with multiple tubes (4) is held via headers (5, 6), wherein in the tubes (4) a first flow path for exhaust gas (7) and between the tubes (4) and the housing (2) a second flow path for coolant (8) runs, wherein the first longitudinal ends of the individual tubes (4) of the tube bundle (3) are incorporated in a first header (5) in a fixed manner, in particular welded or brazed. It is substantial to the invention that at least one of the tubes (4) is axially moveable in the region of a second longitudinal end relative to the second header (6) and captive therein.

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