Gas turbine component with ejection circuit for removing debris from cooling air supply

A gas turbine component having an ejection circuit for removing debris from cooling air flowing through a component of a gas turbine system, the gas turbine component comprising:

• an impingement insert disposed within a cavity in the gas turbine component, the impingement insert including an end wall and a plurality of distribution holes for directing cooling air against a wall of the cavity;
• and
• a debris ejection circuit, including:
• a bypass aperture defined in the end wall of the impingement insert, the bypass aperture fluidly coupling an interior of the impingement insert and an end section of the cavity;
• and
• an ejection channel defined in an aft section of the gas turbine component, the ejection channel fluidly coupling the impingement insert and a hot gas path at an exterior of the gas turbine component via the bypass aperture;
• wherein a pressure differential between the interior of the impingement insert and the exterior of the gas turbine component directs debris in the cooling air through the bypass aperture and the ejection channel to the hot gas path at the exterior of the gas turbine component.