Patent · US Active

Pilot burner for gas turbine engine

US8499564B2 · kind B2 · utility

2Cited by

9References

8Claims

0Family size

Assignee

SIEMENS ENERGY, INC. · US

Inventors

Scott M. Martin · Marquette, US
Robert Bland · Oviedo, US
Anil Gulati · Cincinnati, US

Key dates

Filing date	Sep 19, 2008
Grant date	Aug 6, 2013
Priority date	—
Expiry date	Jun 6, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23R2900/03343
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pilot burner (150, 350) for a gas turbine engine delivers an inner non-swirling fuel-oxidant mixture surrounded by an outer swirling fuel-oxidant mixture, thereby providing enhanced mixing with no recirculation zone. At least one fluid-restricting inlet port (166, 366) provides an oxidant to an inner mixing passage (160, 360). The inner mixing passage (160, 360) includes a plurality of fuel outlets (168). An outer annular mixing passage (180) receives oxidant from an upstream port (181) surrounding the inner mixing passage and includes at least one swirler element (186, 386) and fuel outlets (188).

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