LEAN BURN COMBUSTOR

LEAN BURN COMBUSTOR

A lean burn combustor (16) comprises a plurality of lean burn fuel injectors (50), each comprising a fuel feed arm (52) and a lean burn fuel injector head (54) with a lean burn fuel injector head tip (72), wherein the lean burn fuel injector head tip has a lean burn fuel injector head tip diameter (...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Tentorio, Luca, Bagchi, Imon-Kalyan
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:A lean burn combustor (16) comprises a plurality of lean burn fuel injectors (50), each comprising a fuel feed arm (52) and a lean burn fuel injector head (54) with a lean burn fuel injector head tip (72), wherein the lean burn fuel injector head tip has a lean burn fuel injector head tip diameter (d), the lean burn fuel injector head comprising a pilot fuel injector and a main fuel injector, the main fuel injector being arranged coaxially and radially outwards of the pilot fuel injector; and a combustor chamber (60) extending along an axial direction (62) and comprising a radially inner annular wall (64), a radially outer annular wall (66), and a meter panel (68) defining the size and shape of the combustor chamber, wherein the combustor chamber comprises a primary combustion zone (80) with a primary combustion zone depth (D) and a secondary combustion zone (82). A ratio D/d of the primary combustion zone depth to the lean burn fuel injector head tip diameter is less than 2.4.