Anti-nox combustion chamber with annular fuel injection

Details Anti-nox combustion chamber with annular fuel injection Anti-nox combustion chamber with annular fuel injection

F - Mech Eng,Light,Heat,Weapons

23

R

F23R 3/46 (2006.01) F23R 3/10 (2006.01) F23R 3/28 (2006.01) F23R 3/50 (2006.01)

Patent

CA 2206184

The invention relates to an anti-NOx combustion chamber with annular fuel injection. The back of the chamber is comprised of two annular separators (16, 17) connected by spacers (30) which form between them arc-shaped openings (31) in which arc-shaped injector bars (42) are located. The injector bars (42), with the interior separators (16) and external separators (17), form annular spaces (50, 51) in which the fuel and the oxidizing agent are injected to form mixtures swirling about the axis of symmetry in opposite directions. Almost perfect circumferential homogeniety with respect to fuel is thus achieved. This reduces NOx emissions and improves the temperature profile. Figure 2

Abrégé L'invention concerne une chambre de combustion anti-Nox à injection de carburant de type annulaire. Le fond de chambre comporte deux viroles annulaires (16, 17) reliées par des entretoises (30) qui délimitent entre elles des ouvertures arquées (31) dans lesquelles sont disposées des lampes d'injection (42) arquées. Les rampes d'injection (42) délimitent avec les viroles interne (16) et externe (17) des espaces annulaires (50, 51) dans lesquels le carburant et le comburant sont injectés pour former des mélanges tourbillonnant autour de l'axe de symétrie dans des sens opposées. On réalise ainsi une homogénéité circonférentielle quasi parfaite du carburant. Ceci diminue les émissions de Nox et améliore le profil des températures. Figure 2

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