The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 14, 2026

Filed:

Jul. 13, 2021
Applicant:

Sms Group Gmbh, Düsseldorf, DE;

Inventors:

Hans-Jürgen Odenthal, Mettmann, DE;

Andreas Kemminger, Düsseldorf, DE;

Peter Starke, Duisburg, DE;

Ralf Nörthemann, Sprockhövel, DE;

Assignee:

SMS group GmbH, Düsseldorf, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C 5/46 (2006.01); C21C 5/32 (2006.01); C21C 5/52 (2006.01); F27B 3/22 (2006.01); F27D 3/16 (2006.01); F27D 99/00 (2010.01);
U.S. Cl.
CPC ...
C21C 5/4606 (2013.01); C21C 5/32 (2013.01); C21C 5/5217 (2013.01); F27B 3/225 (2013.01); F27D 3/16 (2013.01); F27D 99/0033 (2013.01); F27D 2003/164 (2013.01); F27D 2003/165 (2013.01); F27D 2003/168 (2013.01);
Abstract

A burner comprises a primary nozzle for injecting an oxygen-rich gas. The primary nozzle is designed as a supersonic nozzle. A coaxial nozzle having an annular outlet opening is provided for injecting a fuel gas. The coaxial nozzle is designed as a subsonic nozzle and is coaxial to the primary nozzle. The primary nozzle has a convergent portion and a divergent portion, which adjoin each other at a radius of the narrowest cross-section. The annular outlet opening is located at an end face of the burner. The fuel gas, in the form of hydrogen or a mixture of hydrogen and a hydrocarbon-containing gas, is injected at a fixed inlet pressure and a fixed inlet volumetric flow rate, with respect to a planned thermal power of the burner. In contrast, the inlet pressure and the inlet volumetric flow rate of the oxygen-rich gas are varied according to the application.


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