Injection nozzle assembly for a gas turbomachine

摘要

An injection nozzle assembly (60) includes a nozzle body (64) having an outer surface (66) and an inner surface (67) that defines a flow passage (70), and a center body (74) arranged within the nozzle body (64) and extending along the flow passage (70). The center body (74) includes a first end (78) that extends to a tip portion (79) through an intermediate portion (80) that defines a fluid passage (82). The intermediate portion (80) includes a first outer dimension (84) and the tip portion (79) includes a second outer dimension (85) that is distinct from the first outer dimension (84). The center body (74) includes a plurality of grooves (100) that extend axially along the tip portion (79).