ROTOR BLADE TIP
First Claim
Patent Images
1. A rotor blade, comprising:
- an airfoil, the airfoil comprising;
a leading edge;
a trailing edge downstream of the leading edge;
a root extending between the leading edge and the trailing edge;
a tip spaced radially outward from the root, the tip including a tip floor;
a pressure side wall extending between the root and the tip and extending between the leading edge and the trailing edge;
a suction side wall extending between the root and the tip and extending between the leading edge and the trailing edge, the suction side wall opposing the pressure side wall;
a pressure side tip rail that extends radially outwardly from the tip floor between the leading edge and the trailing edge along the pressure side wall;
a suction side tip rail that extends radially outwardly from the tip floor between the leading edge and the trailing edge along the suction side wall;
a tip cavity defined by the tip floor, the pressure side tip rail and the suction side tip rail, the tip cavity defining a radial extent outward of the tip floor; and
a slot formed in an aft portion of the suction side tip rail;
wherein gas flows from the tip cavity via the slot and the opening, and the gas flow from the tip cavity inhibits formation of a vortex flow proximate to the suction side wall.
2 Assignments
0 Petitions
Accused Products
Abstract
A rotor blade includes an airfoil. The airfoil includes a leading edge and a trailing edge downstream of the leading edge. The airfoil also includes a radially outer tip with a pressure side tip rail and a suction side tip rail. A slot is formed in an aft portion of the suction side tip rail and an opening is positioned between the suction side tip rail and the pressure side tip rail at the trailing edge. Gas flows from the tip via the slot and the opening to inhibit formation of a vortex flow proximate to the suction side of the airfoil.
-
Citations
23 Claims
-
1. A rotor blade, comprising:
an airfoil, the airfoil comprising; a leading edge; a trailing edge downstream of the leading edge; a root extending between the leading edge and the trailing edge; a tip spaced radially outward from the root, the tip including a tip floor; a pressure side wall extending between the root and the tip and extending between the leading edge and the trailing edge; a suction side wall extending between the root and the tip and extending between the leading edge and the trailing edge, the suction side wall opposing the pressure side wall; a pressure side tip rail that extends radially outwardly from the tip floor between the leading edge and the trailing edge along the pressure side wall; a suction side tip rail that extends radially outwardly from the tip floor between the leading edge and the trailing edge along the suction side wall; a tip cavity defined by the tip floor, the pressure side tip rail and the suction side tip rail, the tip cavity defining a radial extent outward of the tip floor; and a slot formed in an aft portion of the suction side tip rail; wherein gas flows from the tip cavity via the slot and the opening, and the gas flow from the tip cavity inhibits formation of a vortex flow proximate to the suction side wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
16. A gas turbine, comprising;
-
a compressor; a combustor disposed downstream from the compressor; a turbine disposed downstream from the combustor, the turbine including a rotor shaft extending axially through the turbine, an outer casing circumferentially surrounding the rotor shaft to define a hot gas path therebetween and a plurality of rotor blades interconnected to the rotor shaft and defining a stage of rotor blades, wherein each rotor blade comprises; a mounting portion including a mounting body, the mounting body being interconnectable with the rotor shaft; and an airfoil coupled to the mounting portion, the airfoil comprising; a leading edge; a trailing edge downstream of the leading edge; a root extending between the leading edge and the trailing edge; a tip spaced radially outward from the root, the tip including a tip floor; a pressure side wall extending between the root and the tip and extending between the leading edge and the trailing edge; a suction side wall extending between the root and the tip and extending between the leading edge and the trailing edge, the suction side wall opposing the pressure side wall; a pressure side tip rail that extends radially outwardly from the tip floor between the leading edge and the trailing edge along the pressure side wall; a suction side tip rail that extends radially outwardly from the tip floor between the leading edge and the trailing edge along the suction side wall; a tip cavity defined by the tip floor, the pressure side tip rail and the suction side tip rail, the tip cavity defining a radial extent outward of the tip floor; and a slot formed in an aft portion of the suction side tip rail; wherein gas flows from the tip cavity via the slot and the opening, and the gas flow from the tip cavity inhibits formation of a vortex flow proximate to the suction side wall. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
Specification