Fuel injection system for combustion chamber

摘要

The invention relates to a fuel injection system comprising first (30) and second (13-19) injection assemblies, and a "flame-catching" device (14), the first injection assembly being placed on an axis (6) of the combustion chamber and surrounded by a sleeve, and the second injection assembly being arranged beyond the sleeve in relation to the axis between the end (12) of the sleeve and the bottom (4). According to the invention, A) the second assembly comprises a plurality of radial rows (13) of injection holes (19) extending in one and the same plane perpendicular to the axis (6) and arranged in a star shape; and B) the "flame-catching" device comprises "flame-catching" arms (14) which extend axially at least as far as the plane (P12) of the end (12) of the sleeve and radially from the external face (11) of the sleeve, being interposed between the rows (13) of holes (19). One application is making a turbomachine with a low rate of emission of nitrogen oxide. <IMAGE>