Patent ID: 6170266
Filing Date: 2001-01-09
Classification: F23R

Abstract:
A wall structure for a gas turbine engine combustor which at least in part defines a combustion chamber, the wall structure comprising at least one outer wall and one inner wall which are spaced apart to define a space therebetween, the outer wall having a means for the ingress of air into the space between the outer and inner walls, the inner wall comprising a number of wall elements, each of said wall elements having a plurality of inclined apertures defined therein to facilitate the exhaustion of air into the combustion chamber, each wall element also comprising a plurality of raised lands, the raised lands arranged in staggered rows so that the lands of adjacent rows are offset from one another and the inclined apertures are disposed between the raised lands, the arrangement of the raised lands providing in particular directions unobstructed channels between the raised lands, and the inclined apertures being orientated such that the axes of the inclined apertures lie along the unobstructed channels between the raised lands.