Patent · US Active

Flat tube for an exhaust gas cooler

US11421949B2 · kind B2 · utility

0Cited by

32References

20Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Jens Holdenried · Ditzingen, DE
Achim Herber · Oberaichen, DE
Steffen Brunner · Backnang, DE

Key dates

Filing date	Dec 20, 2018
Grant date	Aug 23, 2022
Priority date	—
Expiry date	Apr 17, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F2001/027
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A flat tube for an exhaust gas cooler including two flat wide sides and two rounded narrow sides. The flat tube further including a plurality of moulded turbulence projections arranged on the two wide sides in two flow rows and projecting from a respective one of the two wide sides toward the other of the two wide sides. The plurality of turbulence projections are respectively structured in an elongated manner and arranged at an angle relative to a longitudinal direction. The flat tube also including a plurality of moulded support projections projecting from a respective one of the two wide sides away from the other of the two wide sides. The plurality of support projections are arranged between the two flow rows. The two narrow sides each have an elongated flat region that merges into the two wide sides via a plurality of rounded corner regions.

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