Plate type heat exchanger for exhaust gas

US10837708B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Ulrich Maucher · Ditzingen, DE
• Jürgen Barwig · Lambach, DE
• Steffen Ensminger · Notzingen, DE
• Eberhard Pantow · Stuttgart, DE
• Claudia Lang · Abstatt, DE
• Timo Peifer · Stuttgart, DE
• Matthias Schmid · Baden, CH
• Jürgen Steimer · Eßlingen, DE

Key dates

• Filing date: Sep 22, 2015
• Grant date: Nov 17, 2020
• Expiry date: Oct 20, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F9/0221
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A heat exchanger, in particular exhaust-gas cooler, is described herein. The heat exchanger includes tubes of unipartite form or formed from two plates. The tubes form a first and a second fluid duct, and the respective fluid ducts are arranged adjacent to one another. The first fluid duct is designed to be open at at least one of its ends for the inflow and/or outflow of a first fluid. The second fluid ducts are closed at an end side of the tubes by way of an inward or outward step. The step has a greater extent T in the tube longitudinal direction in the corner regions of the tube than between the corner regions. Several non-limiting descriptive embodiments are disclosed herein.