Variable guide vane sealing
AssigneeGeneral Electric Company
InventorsAlexander Martin Sener, Brian David Keith, David Alan Frey, Jamil Darnell Grant
Life of this patent
Estimating the term…
Abstract
A variable guide vane assembly is provided for a turbine defining a core air flowpath. The variable guide vane assembly includes an airfoil band defining a flowpath surface and a cavity. The variable guide vane assembly further includes an airfoil including a first end extending at least partially into the cavity of the airfoil band and an opposite second end, the airfoil extending generally along an axis between the first end and the second end and being moveable generally about the axis relative to the airfoil band. The variable guide vane assembly further includes a sealing element operable to form a seal between the first end of the airfoil and the airfoil band.
Claims20
A variable guide vane assembly for a machine defining a core air flowpath, the variable guide vane assembly comprising:
- an airfoil band defining a surface exposed to the core air flowpath and a cavity, the airfoil band including an airfoil band flange defining a first side facing the core air flowpath and an opposing second side facing the cavity;
- an airfoil comprising a first end and an opposite second end and an airfoil flange disposed in the cavity of the airfoil band radially outward of the airfoil band flange, the airfoil extending along an axis between the first end and the second end and being moveable about the axis relative to the airfoil band;
- and
- a sealing element positioned at the first end to contact and to form a seal between the airfoil flange at the first end of the airfoil and the second side of the airfoil band flange.
A gas turbine engine comprising:
- a compressor section;
- a combustion section;
- and
- a turbine section,
- the compressor section, the combustion section, and the turbine section in serial flow order and defining at least in part a core air flowpath, the turbine section comprising a variable guide vane assembly comprising:
- an airfoil band defining a surface exposed to the core air flowpath and a cavity, the airfoil band including an airfoil band flange defining a first side facing the core air flowpath and an opposing second side facing the cavity;
- an airfoil comprising a first end and an opposite second end and an airfoil flange disposed in the cavity of the airfoil band radially outward of the airfoil band flange, the airfoil extending along an axis between the first end and the second end and being moveable about the axis relative to the airfoil band;
- and
- a sealing element positioned at the first end to contact and to form a seal between the airfoil flange at the first end of the airfoil and the second side of the airfoil band flange.
Dependencies are inferred from the claim text.