Patent · US Expired

Burner with damper for attenuating thermo acoustic instabilities

US6490864B1 · kind B1 · utility

16Cited by

6References

6Claims

0Family size

Assignee

ALSTOM (Switzerland) Ltd · CH

Inventors

Franz Joos · Waldshut-Tiengen, DE
Alexander Ni · Baden, CH
Wolfgang Polifke · Windisch, CH

Key dates

Filing date	Oct 10, 2000
Grant date	Dec 10, 2002
Priority date	—
Expiry date	Oct 27, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23R2900/00014
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a combustion apparatus (10), in particular for driving gas turbines, in which combustion apparatus (10) a gaseous fuel in a burner (11) is sprayed through a plurality of separate fuel-injection devices (15, 16) into a gas flow containing combustion air, and the resulting mixture flows into a combustion chamber (12) for combustion and burns there, the acoustic impedance or stiffness of the fuel-injection devices (15, 16) is selected to be different in order to avoid thermoacoustic combustion instabilities.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.