Endwall Contouring for Airfoil Rows With Varying Airfoil Geometries
First Claim
1. An airfoil array for a gas turbine engine comprising:
- a plurality of airfoils spaced circumferentially apart from each other about an engine center axis, each airfoil being associated with a platform;
an endwall extending circumferentially about the engine center axis, the endwall being defined by adjacent platforms, and wherein each pair of adjacent platforms are separated from each other by a gap; and
an endwall contour shape defined to extend from a first location on one side of the gap to a second location on an opposite of the gap, and wherein the endwall contour shape is the same for all adjacent platforms.
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Accused Products
Abstract
An airfoil array for a gas turbine engine comprises a plurality of airfoils spaced circumferentially apart from each other about an engine center axis. Each airfoil is associated with a platform. An endwall extends circumferentially about the engine center axis, and is defined by adjacent platforms. Each pair of adjacent platforms are separated from each other by a gap. An endwall contour shape extends from a first location on one side of the gap to a second location on an opposite of the gap. The endwall contour shape is the same for all adjacent platforms. A gas turbine engine and a method of forming an airfoil array for a gas turbine engine are also disclosed.
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Citations
20 Claims
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1. An airfoil array for a gas turbine engine comprising:
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a plurality of airfoils spaced circumferentially apart from each other about an engine center axis, each airfoil being associated with a platform; an endwall extending circumferentially about the engine center axis, the endwall being defined by adjacent platforms, and wherein each pair of adjacent platforms are separated from each other by a gap; and an endwall contour shape defined to extend from a first location on one side of the gap to a second location on an opposite of the gap, and wherein the endwall contour shape is the same for all adjacent platforms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A gas turbine engine comprising:
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a compressor section; a combustor section downstream of the compressor section; and a turbine section downstream of the combustor section, and wherein at least one of the combustor section, the turbine section, or a fan exit guide vane section, include an airfoil array that is comprised of a plurality of airfoils spaced circumferentially apart from each other about an engine center axis, each airfoil being associated with a platform, an endwall extending circumferentially about the engine center axis, the endwall being defined by adjacent platforms, and wherein each pair of adjacent platforms are separated from each other by a gap, and wherein the plurality of airfoils includes at least a first airfoil on a first platform and a second airfoil on a second platform with the first and second platforms being separated from each other by the gap; and an endwall contour shape defined to extend from a first location on the first platform to a second location on the second platform, and wherein the endwall contour shape is the same for all adjacent platforms. - View Dependent Claims (12, 13, 14, 15)
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16. A method of forming an airfoil array for a gas turbine engine comprising the steps of:
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spacing a plurality of airfoils circumferentially apart from each other about an engine center axis, each airfoil being associated with a platform; forming an endwall that extends circumferentially about the engine center axis, the endwall being defined by adjacent platforms, and wherein each pair of adjacent platforms are separated from each other by a gap; wherein the plurality of airfoils includes at least a first airfoil on a first platform and a second airfoil on a second platform with the first and second platforms being separated from each other by the gap; and shaping an endwall contour to extend from a first location on the first platform to a second location on the second platform, wherein the endwall contour is shaped to be the same for all adjacent platforms regardless of airfoil type. - View Dependent Claims (17, 18, 19, 20)
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Specification