Vernier duct blocker
AssigneeUnited Technologies Corporation
InventorsTimothy Swanson, James Jones
Life of this patent
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Abstract
A vernier duct blocker comprising a plurality of vanes each having a width and comprising a forward portion and an aft portion defining a plurality of gas paths each of the plurality of vanes being separated by a plurality of widths, and a rotatably movable ring interposed between the forward portion and the aft portion comprising a plurality of openings each having a width, wherein the width of one of the plurality of vanes differs from the width of another one of the plurality of vanes.
Claims10
A vernier duct blocker comprising:
- a plurality of vanes each having a width and comprising a forward portion and an aft portion defining a plurality of gas paths each of said plurality of vanes being separated by a plurality of widths;
- and
- a rotatably movable ring interposed between said forward portion and said aft portion comprising a plurality of openings each having a width;
- wherein said width of one of said plurality of vanes differs from said width of another one of said plurality of vanes.
The flow blocker of claim 9 wherein said flowpath is a secondary flowpath.
A method of controlling gas flow through a gas flowpath comprising the steps of:
- providing a plurality of vanes each having a width and comprising a forward portion and an aft portion defining a plurality of gas paths each of said plurality of vanes being separated by a plurality of widths;
- providing a rotatably movable ring interposed between said forward portion and said aft portion comprising a plurality of openings each having a width wherein said width of one of said plurality of vanes differs from said width of another one of said plurality of vanes;
- and
- rotating said rotatably movable ring about a central axis to at least partially block a flow of a gas through said plurality of gas paths.
Dependencies are inferred from the claim text.