Segmented turbine flowpath assembly
AssigneeGeneral Electric Company
InventorsRobert P. Czachor, Christopher C. Glynn
Life of this patent
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Abstract
A turbine flowpath assembly includes a plurality of circumferentially spaced apart airfoils disposed within an annular outer casing. Each of the airfoils includes outer and inner integral bands. A plurality of flowpath outer and inner panels are disposed between adjacent ones of the bands and circumferentially overlap the bands. The panels and bands are joined together at the respective overlaps for allowing circumferential movement therebetween while providing sealing.
Claims10
A gas turbine annular flowpath assembly located about a longitudinal centerline axis for channeling combustion gases comprising:
- an annular outer casing;
- a plurality of circumferentially spaced apart, radially extending airfoils each having a radially outer band extending axially and circumferentially therefrom and a radially inner band extending axially and circumferentially thereform;
- a plurality of flowpath radially outer panels, each forming a circumferential segment of said annular flowpath assembly and having a radially outwardly extending member fixedly joined to said outer casing, each outer panel extending circumferentially between and circumferentially overlapping adjacent ones of said outer bands radially thereover;
- a plurality of flowpath radially inner panels, each forming a circumferential segment of said annular flowpath assembly and, each inner panel extending circumferentially between and circumferentially overlapping adjacent ones of said inner bands radially thereover;
- means for joining together said outer bands and panels, and said inner bands and panels, respectively, at said respective overlaps thereof for restraining radial movement while allowing circumferential movement therebetween;
- and
- said outer and inner panels being disposed in pairs between adjacent ones of said airfoils to define a flow duct therebetween for channeling said combustion gases, said flow duct being supported and suspended from said outer casing by said outer panel.
Dependencies are inferred from the claim text.