Patent ID: 6910336

Claim:
An attachment and sealing system for securing a combustor cap assembly to a combustion chamber, said attachment and sealing system comprising: a combustion chamber having a first generally annular wall and a plurality of first cooling holes located about said first generally annular wall; a combustor cap assembly having a forward end, an aft end, and a center axis, said combustor cap assembly located radially within said first generally annular wall, and comprising: a generally annular seal having a plurality of raised ridges extending radially outward and in sealing contact with said first generally annular wall; a second generally annular wall fixed to and radially within said generally annular seal; a generally annular dome plate having a thickness, a plurality of openings located about said center axis, and a plurality of second cooling holes, said dome plate fixed to said second generally annular wall at a joint region and located radially within said generally annular seal; a plurality of nozzle tubes, said nozzle tubes fixed to said dome plate at said plurality of openings, for receiving a plurality of fuel nozzles; a plurality of pins extending from radially outward of said combustion chamber, through said first generally annular wall, through said generally annular seal, and through said second generally annular wall such that said cap assembly is fixed to said combustion chamber; wherein said plurality of first cooling holes are located proximate said cap assembly aft end in order to direct a cooling medium towards said joint region.