Airfoil shape for a compressor

• US 8,961,119 B2
• Filed: 06/19/2012
• Issued: 02/24/2015
• Est. Priority Date: 06/19/2012
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: McKeever, Matthew John, Liu, Gang
• Primary Examiner(s): Look, Edward
• Assistant Examiner(s): Flores, Juan G
• Application Number:
  US13/526,941
• Publication Number:
  US 20130336780A1
• Time in Patent Office: 980 Days
• Field of Search: 416/191, 416/223.R, 416/223.A, 416/242, 416/243, 416/DIG.2, 415/191
• US Class Current: 415/191
• 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: F04D 29/544 Blade shapes
• 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 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 smoothly 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 smoothly 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 exit guide vane configured for use with a compressor.

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

+/−

5% of a chord length in a direction normal to an airfoil surface location.

4. 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, decimal fraction, integer and mixed number.

5. The article of manufacture according to claim 1, wherein a height of the article of manufacture is about 1 inch to about 15 inches.

6. 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 smoothly 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.

7. The article of manufacture according to claim 6 wherein the article of manufacture comprises an exit guide vane configured for use with a compressor.

8. The article of manufacture according to claim 6, wherein the suction-side airfoil shape lies in an envelope within:

+/−

5% of a chord length in a direction normal to a suction-side airfoil surface location.

9. The article of manufacture according to claim 6, wherein the number, used to convert the non-dimensional values to dimensional distances, is at least one of a fraction, decimal fraction, integer and mixed number.

10. The article of manufacture according to claim 6, wherein a height of the article of manufacture is about 1 inch to about 15 inches.

11. The article of manufacture according to claim 6, 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 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 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 smoothly 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.

12. A compressor comprising a plurality of exit guide vanes, each of the exit guide 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 smoothly with one another to form a complete suction-side airfoil shape.

13. The compressor according to claim 12, wherein the suction-side airfoil shape lies in an envelope within:

+/−

5% of a chord length in a direction normal to a suction-side airfoil surface location.

14. The compressor according to claim 12, wherein the number, used to convert the non-dimensional values to dimensional distances, is at least one of a fraction, decimal fraction, integer and mixed number.

15. The compressor according to claim 12, wherein a height of each exit guide vane is about 1 inch to about 15 inches.

16. The compressor according to claim 12, further comprising each of the plurality of exit guide 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 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 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 smoothly with one another to form a complete pressure-side airfoil shape.

17. The compressor according to claim 16, wherein the pressure-side airfoil shape lies in an envelope within:

+/−

5% of a chord length in a direction normal to a pressure-side airfoil surface location.

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