Patent ID: 7415826

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 is defined between each adjacent opening; (b) a mixer assembly located upstream of and in substantial alignment with each of said openings in said dome plate, said mixer assembly including a an upstream portion and a downstream portion; (c) a mechanism to prevent rotation of each said mixer assembly, said mechanism further comprising; (1) a first pair of tab members extending upstream from said forward surface of said dome plate adjacent each said opening; and (2) a second pair of tab members extending outwardly from said downstream portion of each said mixer assembly, wherein said dome plate tab members interface with said mixer assembly tab members to prevent rotation of each said mixer assembly; wherein each said mixer assembly is retained in a manner so as to be movable in a radial and axial direction without obstructing said radial sections of said dome plate.