Method and device for acoustic modulation of a flame produced by a hybrid burner

US6202401A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jorg Seume · Berlin, DE
• Nicolas Vortmeyer · Essen, DE
• Stephan Gleis · Stephanskirchen, DE
• Jakob Hermann · Fürstenfeldbruck, DE
• Dieter Vortmeyer · Bocholt, DE

Key dates

• Filing date: Mar 5, 1999
• Grant date: Mar 20, 2001
• Expiry date: Mar 5, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method and a device for acoustic modulation of a flame through the use of an acoustically modulated feeding of a fuel. The flame is produced by burning the fuel in a hybrid burner including a premixing burner and a pilot burner associated with the latter. The fuel is fed to the premixing burner in a main flow and to the pilot burner in a pilot flow. The pilot flow is modulated and the main flow is not modulated. The invention is of particular interest for suppressing combustion oscillations in a combustion chamber to which the hybrid burner is connected.