Exhaust heat exchanger

US6269870A · kind A · utility

Assignee

• Behr GmbH & Co. · DE

Inventors

• Matthias Banzhaf · Heilbronn, DE
• Martin Bauer · Birkenfeld, DE
• Claus Beck · Eßlingen, DE
• Martin Bott · Niefern, DE
• Steffen Brunner · Backnang, DE
• Frank Buche · Bad Säckingen, DE
• Guido Domke · Stuttgart, DE
• Markus Esslinger · Fellbach, DE
• Stefan Felber · Schwieberdingen, DE
• Bernd Grünenwald · Jeffery Road, DE
• Bert Hiller · Waiblingen, DE
• Wolfgang Knödler · Waiblingen, DE
• Rainer Lutz · Steinheim, DE
• Joachim Schemel · Großenhain, DE
• Albert Schmitz · Basel, CH
• Peter Schwartz · Livermore, US
• Rainer Trankle · Esslingen am Neckar, DE

Key dates

• Filing date: Apr 22, 1999
• Grant date: Aug 7, 2001
• Expiry date: Apr 22, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

In a heat exchanger used especially as an exhaust heat exchanger, provision is made for tube sheets, the tubes of a tube bundle, and a housing to be shaped from stainless steel sheets. The tube sheets are formed as deep-drawn and stamped parts, each of which has a circumferential wall that projects outward beyond the ends of the tubes in the tube bundle. The walls are welded to the housing, and each of the walls is abutted by a diffuser.