INTEGRATED COMBUSTOR NOZZLE

An integrated combustor nozzle (100) includes a combustion liner (110) that extends radially between an inner liner segment (106) and an outer liner segment (108). The combustion liner (110) includes a forward end portion (112), an aft end portion (114), a first side wall (116), and a second side wall (118). The integrated combustor nozzle (100) further includes an impingement cooling apparatus (300) positioned within the cavity (126). The impingement cooling apparatus (300) includes a flange (310, 311). The impingement cooling apparatus (300) further includes a plurality of impingement members (302) that each extend from a respective opening (313) defined in the flange (310, 311) to a respective closed end (312). Each impingement member (302) defines a plurality of impingement apertures (304) that direct air to impinge upon one of the first side wall (116) and the second side wall (118). The impingement cooling apparatus (300) further includes stand-offs (356, 358) extending from each impingement member (302) of the plurality of impingement members (302). The stand-offs (356, 358) space apart each impingement member (302) of the plurality of impingement members (302) from surrounding surfaces.