Patent ID: 7121095

Claim:
A combustor dome assembly for a gas turbine engine having a longitudinal centerline axis extending therethrough, comprising: (a) an annular dome plate having an inner portion, an outer portion, a forward surface, and a plurality of circumferentially spaced openings formed therein, wherein a radial section defined between each of said openings includes a cooling trough formed therein; and, (b) an outer cowl connected to said dome plate outer portion at a downstream end thereof; (c) an inner cowl connected to said dome plate inner portion at a downstream end thereof; and, (d) a deflector plate connected to and positioned aft of each said opening in said dome plate, each deflector plate further comprising: (1) an annular section at an upstream end thereof having a forward end, an aft end, an inner surface and an outer surface; (2) a substantially planar flange connected to said aft end of said annular section, said planar flange including an outer circumferential surface, an inner circumferential surface, a first radial surface, a second radial surface, and an opening therein sized to said inner surface of said annular section so as to form opposing first and second radial sections; (3) a first flange connected to said outer circumferential surface of said planar flange at a predetermined angle thereto; and, (4) a second flange connected to said inner cicumuferential surface of said planar flange at a predetermined angle thereto; wherein said first and second radial sections of said deflector plate planar flange are configured so at least a portion of each said dome plate cooling trough is in flow communication with a combustion chamber aft of said dome plate.