Patent · US Active

Near-wall roughness for damping devices reducing pressure oscillations in combustion systems

US9261058B2 · kind B2 · utility

1Cited by

3References

25Claims

0Family size

Assignee

ALSTOM Technology Ltd · CH

Inventors

Michael Maurer · Bad Säckingen, DE
Andreas Huber · Holzgerlingen, DE
Lothar Schneider · Biebertal, DE
Urs Benz · Gipf-Oberfrick, CH
Diane Lauffer · Wettingen, CH

Key dates

Filing date	Jul 25, 2013
Grant date	Feb 16, 2016
Priority date	—
Expiry date	Jun 20, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23R2900/03045
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A damping device for reducing pressure oscillations in a combustion system includes at least a portion provided with a first, outer wall, a second, inner wall, an intermediate plate interposed between the first wall and the second wall. This intermediate plate forms a spacer grid to define at least one chamber between said first wall and said second wall, first passages connecting each of said at least one chamber to the inner of the combustion system, and second passages connecting each of said at least one chamber to the outer of the combustion system. The second passages open at the same side of said chambers as the first passages, the second passages have a portion extending parallel to the inner wall. This parallel portion of said second passages is equipped with heat transfer enhancing means.

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