Flex seal for gas turbine expansion joints
AssigneeGeneral Electric Company
InventorsJames Giles Eignor, Nicholas Philip Poccia, Leroy Omar Tomlinson
Life of this patent
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Abstract
An expansion joint seal between a gas turbine exhaust duct and an axially adjacent exhaust ductwork comprising plural layers of axially adjacent layers of flexible seal plates, each layer comprising a plurality of arcuate segments which together form a 360.degree. annulus; and further wherein the plural layers of flexible seal plates are secured at one end to the gas turbine exhaust duct, with opposite ends of the seal plates slidably engaged with at least one surface of the exhaust ductwork.
Claims10
A flex seal for an expansion joint between a gas turbine exhaust duct and an axially adjacent exhaust ductwork comprising plural axially adjacent layers of flexible seal plates, each layer comprising a plurality of said seal plates each having an arc length such that said seal plates together form a 360.degree. annulus in each layer;
- and further wherein said plural layers of flexible seal plates are secured at first ends to the gas turbine exhaust duct, with opposite second ends of said seal plates slidably engaged across a free edge of said exhaust ductwork.
A flex seal for an expansion joint between a gas turbine exhaust duct and an axially adjacent exhaust ductwork comprising plural axially adjacent layers of flexible seal plates, each layer comprising a plurality of said seal plates each having an arc length such that said seal plates together form a 360.degree. annulus in each layer;
- and further wherein said plural layers of flexible seal plates are secured at first ends to the gas turbine exhaust duct, with opposite second ends of said seal plates slidably engaged with at least one surface of said exhaust ductwork, and further wherein said at least one surface of said exhaust ductwork comprises a plurality of axially spaced, circumferentially arranged flanges defining an annular radial groove therebetween in which said opposite ends of said seal plates are slidably received.
A flex seal for an expansion joint in a gas turbine exhaust system, the joint including a gas turbine duct and an adjacent exhaust ductwork, the flex seal comprising plural axially adjacent layers of annularly arranged flexible seal plates secured at first ends to an annular mounting flange on the gas turbine duct, with second free ends of the flexible seal plates slidably engaged within an annular radial groove in said exhaust ductwork to thereby accommodate relative axial and radial movement between said gas turbine duct and said exhaust ductwork.
Dependencies are inferred from the claim text.