Combustor dome assembly

Claim 1

In a combustor assembly including a pair of combustor liners radially spaced from one another and adapted to form a combustion zone therebetween, a dome assembly adapted to be positioned between said liners and to cooperate therewith to form the upstream end of said combustion zone, and a pair of snout rings adapted to surround said dome assembly and to define an inlet plenum upstream of said combustion zone, the improvement comprising: said dome assembly includes a dome plate having an upstream end, a downstReam end, which forms a generally annular-shaped opening which lies in fluid flow communication with said combustion zone, and at least one mounting ring extending from said downstream end of said dome plate, said mounting ring includes means for removably connecting said dome plate to at least one of said liners, wherein said connecting means are characterized in that they are positioned completely outside of said combustion zone, and wherein said mounting ring includes means for delivering a coolant from said inlet plenum to the inner side of at least one of said liners as a substantially uniform circumferential film at the intersection of said dome assembly and said liner wherein said connecting means comprise a plurality of bolts at least a portion of which extend into said inlet plenum upstream of said coolant delivery means such that said bolts do not interfer with said coolant film, and said mounting ring includes a wiggle strip connected to said dome plate in such a manner as to surround said dome plate at said intersection of said dome assembly and said liner.