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US 11,933,193 B2Granted
Turbine engine with an airfoil having a set of dimples
AssigneesGE Avio S.r.l., General Electric Company
InventorsPratish Patil, Amit Goyal, Mahendran Manoharan, Francesco Bertini, Jaikumar Loganathan
Life of this patent
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Abstract
A gas turbine engine comprising a set of circumferentially adjacent airfoils, the airfoils having an outer wall defining a pressure side and a suction side extending between a leading edge and a trailing edge to define a stream-wise direction, and between a root and a tip to define a span-wise direction, and a set of dimples provide on the outer wall of at least one of the airfoils, the set of dimples spaced in at least one of the stream-wise or span-wise directions.
Claims19
An airfoil comprising:
- an outer wall defining a pressure side and a suction side extending between a leading edge and a trailing edge to define a stream-wise direction, and between a root and a tip to define a span-wise direction;
- and
- a set of dimples provided on the outer wall, with each dimple of the set of dimples having a non-perforated section including:
- a dimple leading edge;
- a dimple trailing edge provided aft of the dimple leading edge in the stream-wise direction;
- and
- at least one lateral edge extending between the dimple leading edge and the dimple trailing edge, the at least one lateral edge converging from the dimple leading edge and towards the dimple trailing edge.
4 more elements
A gas turbine engine comprising:
- a first airfoil including:
- a pressure side, a suction side, a leading edge, a trailing edge, a root, and a tip, wherein the leading edge and the trailing edge define a stream-wise direction, wherein the root and the tip define a span-wise direction, and wherein a throat is defined by a minimum distance between the suction side of the first airfoil and a trailing edge of a second airfoil adjacent the suction side of the first airfoil, the throat defining a span-wise direction throat line on the suction side;
- and
- a set of dimples on the suction side, each of the dimples of the set of dimples having a non-perforated section, wherein the set of dimples have a first density in an area between the span-wise direction throat line and the trailing edge, wherein the set of dimples have a second density in an area between the span-wise direction throat line and the leading edge, wherein the first density is greater than the second density.
1 more element
Dependencies are inferred from the claim text.