Patent ID: 6595000
Filing Date: 2003-07-22
Classification: F23D,F23R,Y10T

Abstract:
A method of assembling an end portion of an injector of a turbomachine combustion chamber, the injector comprising a first fuel passage means for delivering primary fuel, said first fuel passage means comprising a first feed tube connected to an annular injection piece having first injection orifices for discharging the primary fuel into said combustion chamber, and second fuel passage means for delivering a secondary fuel, said second fuel passage means comprising a second feed tube surrounding said first feed tube and connected to a cylindrical endpiece surrounding said annular injection piece and having secondary injection orifices for discharging the secondary fuel into said combustion chamber, wherein said cylindrical endpiece and said annular injection piece are provided with radial wells for receiving a brazing metal, the method comprising:filling the radial wells with said brazing metal; fitting the annular injection piece in said cylindrical endpiece to form a first subassembly; fitting the first subassembly on said first and second tubes for feeding primary and secondary fuel, and to an outer wall of the injector to form a second subassembly; and placing the second subassembly in an enclosure where it is heated so as to cause the brazing metal to melt and unite the annular injection piece, the cylindrical endpiece, the first and second tubes, and the outer wall.