Patent · US Expired

Heat exchanger for motor vehicles

US7347254B2 · kind B2 · utility

7Cited by

12References

20Claims

0Family size

Assignee

Behr GmbH & Co. · DE

Inventors

Eberhard Pantow · Stuttgart, DE
Arnoldt Rehm · Ditzingen, DE
Rainer Richter · Munich, DE
Lubens Simon · Stuttgart, DE

Key dates

Filing date	Jul 21, 2004
Grant date	Mar 25, 2008
Priority date	—
Expiry date	Jul 21, 2024

Classification

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

Abstract

The invention relates to a heat exchanger for motor vehicles, having a large number of flat tubes through which a liquid cooling medium can flow, and having corrugated fins which are associated with these flat tubes and to which environmental air or other media can be applied. The flat tubes having indentations pointing inward on at least one of their flat faces. Heat transfer between the core flow of the cooling medium and the flat tube walls is improved, and the power density of the heat exchanger is thus increased. The indentations are preferably in the form of elongated vortex generators.

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