Brazeless combustor dome assembly

摘要

A dome assembly for a gas turbine engine combustor includes an annular combustor dome with a substantially annular flat dome plate and at least one circular opening in the dome plate. A seal plate flange with a flat aft facing surface has a central ring circumscribed about a centerline axis and extends aftwardly from the seal plate flange. The central ring is disposed through the circular opening in the dome plate and the central ring includes a central bore coaxially aligned with the circular opening. A baffle has a cylindrical tubular mounting portion extending upstream through the central bore and is fixedly joined to the seal plate and a flare portion extending aft from the seal plate flange. A carburetor including an air swirler having an annular exit cone is joined to the baffle with the exit cone disposed within the cylindrical tubular mounting portion of the baffle. An aft end of the central ring is joined to the dome plate by a swage joint. The seal plate flange is preferably flat and has a rounded corner triangular shape with three wings having radially outer arcuate edges with respect to the centerline axis. Legs extend axially aftwardly from the aft facing surface of the seal plate flange wherein each of the legs is located about midway between each two of the three wings and the seal plate flange is joined to the dome plate by second tack welds between the legs and the dome plate.