Abstract: Various embodiments of the present disclosure address problems associated with non-uniform flow of cooling air by providing a turbine engine including a cooling air chamber in fluid communication with a cooling air source, a turbine chamber, and multiple conduits fluidly connecting the cooling air chamber and the turbine chamber. The system is configured such that, when cooling air is flowing from a cooling air source the static pressure within the cooling fluid chamber is substantially uniform and such that the mass flow rates of cooling air through the conduits and into the turbine chamber are substantially uniform.

Abstract: Various embodiments of the present disclosure provide a turbine engine cooling system configured to provide cooling air to a particular region of the engine to cool that region of the engine. The cooling system is configured to modulate the flow of cooling air to reduce the amount of cooling air flowing to that region of the engine during periods in which less cooling is needed. The cooling system includes a flow limiter configured to choke the mass flow rate of the cooling air provided to the region during modulation to avoid providing more cooling air than is needed to adequately cool that region of the engine.

Abstract: Various embodiments of the present disclosure address problems associated with non-uniform flow of cooling air by providing a turbine engine including a cooling air chamber in fluid communication with a cooling air source, a turbine chamber, and multiple conduits fluidly connecting the cooling air chamber and the turbine chamber. The system is configured such that, when cooling air is flowing from a cooling air source the static pressure within the cooling fluid chamber is substantially uniform and such that the mass flow rates of cooling air through the conduits and into the turbine chamber are substantially uniform.

Abstract: Various embodiments of the present disclosure provide a turbine engine cooling system configured to provide cooling air to a particular region of the engine to cool that region of the engine. The cooling system is configured to modulate the flow of cooling air to reduce the amount of cooling air flowing to that region of the engine during periods in which less cooling is needed to avoid providing more cooling air than is needed to adequately cool that region of the engine. The cooling system is configured to determine when to modulate the flow of cooling air based on temperature readings obtained from within the cooled region.

Abstract: Various embodiments of the present disclosure provide a turbine engine cooling system configured to provide cooling air to a particular region of the engine to cool that region of the engine. The cooling system is configured to modulate the flow of cooling air to reduce the amount of cooling air flowing to that region of the engine during periods in which less cooling is needed. The cooling system includes a flow limiter configured to choke the mass flow rate of the cooling air provided to the region during modulation to avoid providing more cooling air than is needed to adequately cool that region of the engine.