System and method for turbine nozzle cooling
AssigneeGeneral Electric Company
InventorsBenjamin Paul Lacy, David Edward Schick, Sandip Dutta
Life of this patent
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Abstract
A system having an impingement sleeve configured to receive a cooling flow is provided. The impingement sleeve includes a column of ports extending from an outer surface of the impingement sleeve, wherein each port of the column of ports is configured to direct an impingement stream toward a heated structure, and each impingement stream includes a portion of the cooling flow. Further, one or more pins are disposed outside the outer surface relative to the cooling flow, wherein each pin of the one or more pins is coupled between pairs of ports of the column of ports.
Claims20
A system comprising:
- an impingement sleeve configured to receive a cooling flow, wherein the impingement sleeve comprises:
- a shell having an inner surface and an outer surface, the inner surface defining a cavity;
- a plurality of ports extending radially outward from the outer surface of the impingement sleeve, the plurality of ports being arranged in a column, wherein each port of the plurality of ports is configured to direct an impingement stream from the cavity toward a heated structure, and each impingement stream comprises a portion of the cooling flow;
- and
- one or more pins disposed outside the outer surface, wherein each pin of the one or more pins is coupled to at least one port of the plurality of ports.
A system comprising:
- an additively manufactured impingement sleeve configured to receive a cooling flow, wherein the impingement sleeve comprises:
- a build axis substantially perpendicular to a plurality of layers forming the additively manufactured impingement sleeve;
- a plurality of ports extending from an outer surface of the impingement sleeve, wherein the plurality of ports comprises a plurality of port columns, each port of the plurality of ports is configured to direct an impingement stream toward a heated structure, and each impingement stream comprises a portion of the cooling flow;
- and
- a plurality of pins disposed outside the outer surface relative to the cooling flow, wherein each port column comprises one or more pins of the plurality of pins coupled to at least one port of the plurality of ports along the respective port column to support the respective port column during additive manufacturing, and each pin of the plurality of pins is disposed along a respective pin axis within a threshold support angle of the build axis.
A method comprising:
- additively manufacturing an impingement sleeve in a build direction, wherein the impingement sleeve comprises:
- an outer surface;
- a plurality of ports extending from the outer surface at angles greater than 45 degrees relative to the build direction, wherein each port of the plurality of ports is configured to direct an impingement stream toward a heated structure;
- and
- a plurality of pins, wherein each pin of the plurality of pins is disposed along a respective pin axis within a threshold support angle of the build direction, each pin of the plurality of pins is coupled to at least one port of the plurality of ports, and each pin of the plurality of pins is configured to support the at least one port during additive manufacturing;
- and
- inserting the additively manufactured impingement sleeve in a nozzle of a gas turbine.
Dependencies are inferred from the claim text.