Patent ID: 9657948
Date: 2017-05-23
CPC Classifications: F23M,F23R

Claim:
1. A retaining element for retaining a heat shield tile on a support structure of a gas turbine engine component, the retaining element comprising: the support structure of the gas turbine engine component, a fastening section configured to be fastened on the support structure in a fastening groove, the fastening section comprises at least one tile retaining section with a retaining head configured for engaging the heat shield tile, the fastening section further comprises an elongated baseplate, the at least one tile retaining section is arranged toward one end of the elongated baseplate, and the fastening section having an adjoining end region facing away from the at least one tile retaining section, and an upper side of the fastening section located to face a cold side of the heat shield tile; the fastening section in the adjoining end region on the upper side of the fastening section comprises a projection, and the projection projects from the elongated baseplate in a direction perpendicular to a surface of the support structure towards the heat shield tile and away from the at least one tile retaining section; at least one cooling air passage arranged in the fastening section in a region of the projection, the at least one cooling air passage comprising an inlet opening communicating into at least one discharge opening which is arranged in at least one of a lateral face of and at the upper side of the fastening section; the at least one cooling air passage configured for supplying cooling air flow in an outflow direction and the cooling air flow flows through the at least one discharge opening, wherein the outflow direction comprises a velocity component which is parallel to the cold side of the tile and avoids impingement cooling of the heat shield tile wherein the heat shield is retained by the at least one tile retaining section; and the fastening section is arranged on the support structure of the gas turbine component such that the inlet opening of the at least one cooling air passage aligns with a cooling air channel in a bottom of the fastening groove.