Airfoil shape for a compressor

• US 8,215,917 B2
• Filed: 08/31/2010
• Issued: 07/10/2012
• Est. Priority Date: 08/31/2010
• Status: Active Grant

• Current Assignee: GE Infrastructure Technology, LLC (General Electric Company)
• Original Assignee: General Electric Company
• Inventors: LaMaster, Christopher Edward, Aaron, Kelvin Rono
• Primary Examiner(s): Edgar, Richard
• Application Number:
  US12/872,176
• Publication Number:
  US 20120051928A1
• Time in Patent Office: 679 Days
• Field of Search: None
• US Class Current: 416/223.A
• 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 9/02 Nozzles; Nozzle boxes; Stator blades; Guide conduits , e.g. individual nozzles nozzle boxes F01D9/047
• CPC Class Codes: F05D 2250/74 given by a set or table of xyz-coordinates

Abstract

An article of manufacture having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in TABLE A. X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z in inches. The profile sections at the Z distances can be joined smoothly with one another to form a complete airfoil shape.

Claims

1. An article of manufacture, the article having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in TABLE A, and wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z in inches, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape.

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

3. An article of manufacture according to claim 2, wherein said airfoil shape lies in an envelope within +/−

0.160 inches in a direction normal to any article surface location.

4. An article of manufacture according to claim 1, wherein the airfoil shape comprises a rotor blade.

5. A compressor comprising a compressor wheel having a plurality of blades, each of said blades cooperating with a plurality of rotor vanes, the plurality of rotor vanes comprising an airfoil having an airfoil shape, said airfoil shape having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in TABLE A, wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define the airfoil profile sections at each distance Z in inches, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape.

6. A compressor comprising a compressor wheel having a plurality of vanes, the plurality of rotor vanes comprising an airfoil having an uncoated nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in TABLE A, wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z in inches, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape, the X and Y distances being scalable as a function of the same constant or number to provide at least one of a scaled up airfoil and scaled down airfoil.

7. A compressor according to claim 6 wherein the plurality of rotor blades comprise a Stage 4 rotor vane.

8. A compressor according to claim 6 wherein said airfoil shape lies in an envelope within +/−

0.160 inches in a direction normal to any airfoil surface location.