Patent attributes
Combustor assemblies having heat shields and features for attaching the heat shields are provided. For example, a combustor assembly includes a combustor dome defining an aperture, and a heat shield defining an opening and including a cup extending about the opening that extends toward the aperture of the combustor dome. The combustor assembly also includes a collar comprising a first piece and a second piece that each surround a portion of the heat shield cup. The collar may include a first arm, a second arm, and a body connecting the first and second arms such that the collar defines a recess between the first and second arms. The combustor assembly also may include an attachment piece with a flange that is positioned in the recess with a heat shield flange; the attachment piece attaches to the combustor dome to couple the heat shield and the combustor dome.
