METHOD FOR PRODUCING HEAT EXCHANGER TUBES, WHICH CONSIST OF HALF TUBES OR COMPLETE TUBES AND WHICH ARE PROVIDED FOR A RECUPERATIVE EXHAUST GAS HEAT EXCHANGER

Title:

METHOD FOR PRODUCING HEAT EXCHANGER TUBES, WHICH CONSIST OF HALF TUBES OR COMPLETE TUBES AND WHICH ARE PROVIDED FOR A RECUPERATIVE EXHAUST GAS HEAT EXCHANGER

Document Type and Number:

WIPO Patent Application WO2004058430

Kind Code:

A3

Abstract:

The invention relates to a method for producing half tubes (24, 26) or complete tubes and of a recuperative exhaust gas heat exchanger (10) involving the use of an investment casting process. The half tubes (24, 26)/complete tubes, which are made of a high-temperature resisting metallic material, have a multitude of ellipsoidal openings (22) that pass through the tubes' lateral surfaces (20).

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Inventors:

STEINHAUSER LUDWIG (DE)

Application Number:

PCT/DE2003/003917

Publication Date:

October 14, 2004

Filing Date:

November 26, 2003

Export Citation:

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Assignee:

MTU AERO ENGINES GMBH (DE)
STEINHAUSER LUDWIG (DE)

International Classes:

B22C7/02; B22C9/04; B22D15/02; F28D7/00; B22D; (IPC1-7): B22C9/04; B22C7/02

Foreign References:

US4321010A	1982-03-23
EP0331026A2	1989-09-06

Other References:

PATENT ABSTRACTS OF JAPAN vol. 1999, no. 13 30 November 1999 (1999-11-30)

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