AIRFOIL SHAPE FOR A COMPRESSOR

• US 20170067357A1
• Filed: 09/04/2015
• Published: 03/09/2017
• Est. Priority Date: 09/04/2015
• Status: Active Grant

• Current Assignee: GE Infrastructure Technology, LLC (General Electric Company)
• Original Assignee: General Electric Company
• Inventors: Fang, Chih, Chiu, Ya-Tien
• Granted Patent: US 10,041,370 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F01D 17/14 varying effective cross-sectional area of nozzles or guide conduits
• CPC Class Codes: F01D 5/141 Shape, i.e. outer, aerodynamic form F01D5/148 - F01D5/20 take precedence; blade construction F01D5/147
• CPC Class Codes: F01D 9/041 using blades F01D5/148 takes precedence
• CPC Class Codes: F04D 29/544 Blade shapes
• CPC Class Codes: F05D 2220/32 in gas turbines
• CPC Class Codes: F05D 2240/12 Fluid guiding means, e.g. vanes
• CPC Class Codes: F05D 2250/74 given by a set or table of xyz-coordinates

Abstract

An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in a scalable TABLE 1, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.

Claims

1. An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in scalable TABLE 1, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.

2. The article of manufacture according to claim 1, wherein the article of manufacture comprises an airfoil.

3. The article of manufacture according to claim 1, wherein the article of manufacture comprises a variable stator vane configured for use with a compressor.

4. The article of manufacture according to claim 1, wherein the airfoil shape lies in an envelope within at least one of:

+/−

5% of a chord length in a direction normal to an airfoil surface location and +/−

0.25 inches (about 6.36 millimeters) in a direction normal to an airfoil surface location.

5. The article of manufacture according to claim 1, wherein the number, used to convert the non-dimensional values to dimensional distances, is at least one of a fraction, a decimal fraction, an integer, and a mixed number.

6. The article of manufacture according to claim 1, wherein a height of the article of manufacture is about 1 inch to about 30 inches (about 2.54 centimeters to about 76.2 centimeters).

7. An article of manufacture having a suction-side nominal airfoil profile substantially in accordance with suction-side Cartesian coordinate values of X, Y, and Z set forth in scalable TABLE 1, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete suction-side airfoil shape, the X, Y, and Z coordinate values being scalable as a function of the number to provide at least one of a non-scaled, scaled-up, and scaled-down airfoil profile.

8. The article of manufacture according to claim 7, wherein the article of manufacture comprises an airfoil.

9. The article of manufacture according to claim 7, wherein the article of manufacture comprises a variable stator vane configured for use with a compressor.

10. The article of manufacture according to claim 7, wherein the suction-side airfoil shape lies in an envelope within at least one of:

+/−

5% of a chord length in a direction normal to a suction-side airfoil surface location and +/−

0.25 inches (about 6.36 millimeters) in a direction normal to a suction-side airfoil surface location.

11. The article of manufacture according to claim 7, wherein the number, used to convert the non-dimensional values to dimensional distances, is at least one of a fraction, a decimal fraction, an integer, and a mixed number.

12. The article of manufacture according to claim 7, wherein a height of the article of manufacture is about 1 inch to about 30 inches (about 2.54 centimeters to about 76.2 centimeters).

13. The article of manufacture according to claim 7, further comprising the article of manufacture having a pressure-side nominal airfoil profile substantially in accordance with pressure-side Cartesian coordinate values of X, Y, and Z set forth in the scalable table, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete pressure-side airfoil shape, the X, Y, and Z values being scalable as a function of the number to provide at least one of a non-scaled, scaled-up, and scaled-down airfoil.

14. A compressor comprising a plurality of variable stator vanes, each of the variable stator vanes including an airfoil having a suction-side airfoil shape, the airfoil having a nominal profile substantially in accordance with suction-side Cartesian coordinate values of X, Y, and Z set forth in scalable TABLE 1, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete suction-side airfoil shape.

15. The compressor according to claim 14, wherein the suction-side airfoil shape lies in an envelope within at least one of:

+/−

5% of a chord length in a direction normal to a suction-side airfoil surface location and +/−

0.25 inches (about 6.36 millimeters) in a direction normal to a suction-side airfoil surface location.

16. The compressor according to claim 14, wherein the number, used to convert the non-dimensional values to dimensional distances, is at least one of a fraction, a decimal fraction, an integer, and a mixed number.

17. The compressor according to claim 14, wherein a height of each variable stator vane is about 1 inch to about 30 inches (about 2.54 centimeters to about 76.2 centimeters).

18. The compressor according to claim 14, further comprising each of the plurality of variable stator vanes having a pressure-side nominal airfoil profile substantially in accordance with pressure-side Cartesian coordinate values of X, Y, and Z set forth in the scalable table, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by the number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete pressure-side airfoil shape.

19. The compressor according to claim 18, wherein the pressure-side airfoil shape lies in an envelope within at least one of:

+/−

5% of a chord length in a direction normal to a pressure-side airfoil surface location and +/−

0.25 inches (about 6.36 millimeters) in a direction normal to a pressure-side airfoil surface location.

20. The compressor according to claim 18, wherein the number, used to convert the non-dimensional values to dimensional distances, is at least one of a fraction, a decimal fraction, an integer, and a mixed number.