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A multiple-impingement cooled structure, such as for use as a turbine shroud assembly. The structure includes a plurality of baffles which define with an element to be cooled, such as a shroud, a plurality of cavities. Impingement cooling air is directed through holes in one of the baffles to imping

A multiple-impingement cooled structure, such as for use as a turbine shroud assembly. The structure includes a plurality of baffles which define with an element to be cooled, such as a shroud, a plurality of cavities. Impingement cooling air is directed through holes in one of the baffles to impinge upon only the portion of the shroud in a first cavity. That cooling air is then directed to impinge again upon the portion of the shroud in a second cavity.

대표청구항 ▼

A multiple-impingement cooled structure for defining a boundary of a gas flowpath comprising: (a) an element including an inner surface and an outer surface facing toward and away from said gas flowpath, respectively, and further including upstream and downstream edges and at least one rib extending

A multiple-impingement cooled structure for defining a boundary of a gas flowpath comprising: (a) an element including an inner surface and an outer surface facing toward and away from said gas flowpath, respectively, and further including upstream and downstream edges and at least one rib extending from said outer surface and generally parallel to said downstream edge; (b) an upstream flange and a downstream flange disposed on opposite sides of said rib and extending from said outer surface of said element near said upstream and downstream edges, respectively, thereof; (c) a first baffle and a second baffle, said first baffle extending between said upstream and said downstream flanges and spaced from said element, from said rib and from said second baffle for defining therewith a first cavity, said second baffle extending between said rib and said downstream flange and spaced between said first baffle and said element for defining therewith a second cavity, said first baffle and said second baffle each including a plurality of impingement holes therethrough for together directing cooling air from a source thereof to impinge sequentially upon the portion of said element within said first cavity and then upon the portion of said element within said second cavity; and (d) fluid communication means between at least one of the cavities and the exterior of said structure.