COMBUSTOR NOZZLE, GAS TURBINE COMBUSTOR, GAS TURBINE, COVER RING, AND METHOD FOR MANUFACTURING COMBUSTOR NOZZLE

摘要

A combustor nozzle, a gas turbine combustor, a gas turbine, a cover ring, and a method for manufacturing a combustor nozzle, wherein there are provided: a nozzle body (71) to which a fuel channel (72) is provided; a cover ring (75) disposed on the outside of the nozzle body (71) to form air channels (76, 77) capable of discharging air forwards; and fuel injection nozzles (79) provided at the tip section of the nozzle body (71) so as to penetrate the cover ring (75) at predetermined intervals around the circumferential direction, whereby the fuel injection nozzles (79) are capable of injecting fuel in the fuel channel (72) forwards. The cover ring (75) is provided with an outer circumferential surface cover (75a) covering the outer circumferential surface of the nozzle body (71), a tip surface cover (75b) covering the tip surface of the nozzle body (71), and a plurality of inclined channels (101) penetrating the tip surface cover (75b) in the thickness direction and inclining in a predetermined direction relative to the direction of the center axis (C).