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US 9,810,148 B2Granted
Self-cooled orifice structure
AssigneeUnited Technologies Corporation
InventorsTracy A. Propheter-Hinckley, Dominic J. Mongillo, Jr., Mark F. Zelesky
Life of this patent
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Abstract
A self-cooled orifice structure, that may be for a combustor of a gas turbine engine includes a hot side panel, a cold side panel spaced from the hot side panel, and a continuous first wall extending axially between the hot and cold side panels and spaced radially outward from a centerline. The structure may further include a first plurality of helical vanes projecting laterally, radially, inward from the first wall for flowing cooling air in a spiraling fashion through the cold side panel, then through the hot side panel.
Claims15
A self-cooled orifice structure comprising:
- a hot side panel;
- a cold side panel spaced from the hot side panel;
- a continuous first wall extending axially between the hot and cold side panels and spaced radially outward from a centerline;
- a continuous second wall having an outward face and an opposite inward face, wherein the inward face defines an orifice that is a dilution hole of a combustor;
- and
- a first plurality of helical vanes projecting laterally, radially, inward from the first wall;
- the outward face extending axially between the hot and cold side panels and spaced radially inward from the first wall;
- wherein a plurality of helical channels are defined radially between the outward face and the first wall and defined laterally between respective adjacent vanes of the first plurality of helical vanes, and communicate through the hot and cold side panels.
5 more elements
A self-cooled orifice structure comprising:
- a hot side panel;
- a cold side panel spaced from the hot side panel;
- a continuous first wall extending axially between the hot side panel and the cold side panel and spaced radially outward from a centerline;
- a first plurality of helical vanes projecting laterally, radially, inward from the first wall;
- and
- an outward face extending axially between the hot and cold side panels and spaced radially inward from the first wall;
- wherein a plurality of helical channels are defined radially between the outward face and the first wall and defined laterally between respective adjacent vanes of the first plurality of helical vanes, and communicate through the hot and cold side panels;
- and
- wherein the outward face is carried by a combustor igniter projecting through the hot and cold side panels.
6 more elements
A self-cooled orifice structure comprising:
- a hot side panel;
- a cold side panel spaced from the hot side panel;
- a continuous first wall extending axially between the hot side panel and the cold side panel and spaced radially outward from a centerline;
- a continuous second wall having an outward face and an opposite inward face, wherein the inward face defines an orifice, and wherein the first and second walls are generally flush with the hot side panel and project axially beyond the cold side panel;
- and
- a first plurality of helical vanes projecting laterally, radially, inward from the first wall;
- the outward face extending axially between the hot and cold side panels and spaced radially inward from the first wall;
- wherein a plurality of helical channels are defined radially between the outward face and the first wall and defined laterally between respective adjacent vanes of the first plurality of helical vanes, and communicate through the hot and cold side panels;
- and
- wherein each one of the plurality of helical channels communicate through a respective inlet in the first wall beyond the cold side panel and a common annular outlet generally defined between the hot side panel and the second wall.
7 more elements
A self-cooled orifice structure comprising:
- a continuous first wall spaced radially outward from a centerline;
- a continuous second wall spaced radially outward from the first wall;
- a hot side panel;
- a cold side panel spaced axially from the hot side panel with the first and second walls extending axially between the hot and cold side panels;
- and
- a plurality of helical vanes with each vane extending radially between the first and second walls and axially between the hot and cold side panels;
- wherein a plurality of helical passages are defined at least between the first and second walls and respective adjacent vanes of the plurality of helical vanes;
- and
- wherein the plurality of helical passages communicate between at least one inlet generally defined between the first wall and a continuous lip of the cold side panel, and an outlet communicating through the hot side panel proximate to the second wall.
6 more elements
Dependencies are inferred from the claim text.