Patent · US Active

Burner including non-uniformly cooled tetrahedron vortex generators and method for cooling

US8850788B2 · kind B2 · utility

1Cited by

5References

21Claims

0Family size

Assignee

ALSTOM Technology Ltd · CH

Inventors

Adnan Eroglu · Untersiggenthal, CH
Andrea Ciani · Zürich, CH
Johannes Buss · Ohlsbach, DE
Michael Düsing · Rheinfelden (Baden), DE
Urs Benz · Gipf-Oberfrick, CH

Key dates

Filing date	Mar 10, 2010
Grant date	Oct 7, 2014
Priority date	—
Expiry date	May 20, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23D2209/20
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The burner (1) for a gas turbine includes a duct (2) housing a plurality of tetrahedron shaped vortex generators (3) and a lance (4) to inject a fuel to be combusted. Within the duct (2), a plurality of vortex generators (3) are provided with a plurality of holes (9) for injecting cooling air. The cooling holes (9) define passing through areas that are non-uniformly distributed on a top wall (11) of the vortex generators (3). A method for locally cooling a hot gases flow passing through a burner includes non-uniformly injecting cooling air from a vortex generator into the hot gas flow in the duct, which can reduce the occurrence of flashback in the burner.

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