Heat exchanger for gases of greatly varying temperatures

US4036293A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Eggert Tank · Wernau, DE
• Manfred Stute

Key dates

• Filing date: Jun 7, 1974
• Grant date: Jul 19, 1977
• Expiry date: Jun 7, 1994

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F19/002
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A heat-exchanger for gases of greatly varying temperatures, especially for use in gas turbines, which essentially consists of a collective space, for example, of a pipe-shaped collective space for the cold gas and of a metal recuperator which is formed by a large number of preferably U-shaped pipes which are welded or brazed into the collective chamber, whereby the hotter gases flow through between the pipes of the recuperator to give off some of their heat to the compressor air flowing through these pipes; one or several protective sheet metal members are arranged within the area of the connecting places between the pipes of the recuperator and the collective chamber which protect the welded or brazed joints against the hot gases.