Conical-flat heat shield for gas turbine engine combustor dome

A gas turbine engine combustor comprising:

• a domeplate coupled to combustor outer and inner liners,
• one or more concentric circular rows of conical-flat heat shields mounted on or coupled to the domeplate,
• each of the conical-flat heat shields including a conical section extending upstream or forward from and integral with a flat section of the conical-flat heat shield;
• the flat section including radially outer and inner edges,
• at least one of the outer and inner edges being circular and circumscribed about a centerline of a gas turbine engine,
• the flat section including circumferentially spaced apart radial edges having an origin on the centerline;
• and
• film cooling means for cooling a downstream facing conical surface of the conical-flat heat shield upstream or forward of the flat section.

A combustor of a gas turbine engine, the combustor comprising:

• two or more concentric circular rows of conical-flat outer and inner heat shields coupled to or mounted on a domeplate of the combustor,
• the two or more concentric circular rows including at least one pair of radially adjacent outer and inner circular rows of the conical-flat outer and inner heat shields,
• the conical-flat outer and inner heat shields including outer and inner conical sections extending upstream or forward from and integral with outer and inner flat sections of the conical-flat outer and inner heat shields respectfully;
• and
• flat downstream facing surfaces of the outer and inner flat sections perpendicular to or canted at a face angle with respect to a centerline of the gas turbine engine,
• the flat downstream facing surface of a first one of the outer and inner flat sections canted at a first face angle towards the centerline and the flat downstream facing surface of a second one of the outer and inner flat sections canted at a second face angle away from the centerline.

A combustor of a gas turbine engine, the combustor comprising:

• two or more concentric circular rows of conical-flat outer and inner heat shields coupled to or mounted on a domeplate of the combustor,
• the two or more concentric circular rows including at least one pair of radially adjacent outer and inner circular rows of the conical-flat outer and inner heat shields, and
• the conical-flat outer and inner heat shields including annular outer and inner conical sections extending upstream or forward from and integral with outer and inner flat sections of the conical-flat outer and inner heat shields respectfully, and
• flat downstream facing surfaces of the outer and inner flat sections perpendicular to or canted at a face angle with respect to a centerline of the gas turbine engine,
• the flat downstream facing surface of a first one of the outer and inner flat sections canted at a first face angle with respect to the centerline and the flat downstream facing surface of a second one of the outer and inner flat sections canted at a second face angle with respect to the centerline.