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A compressor impeller includes a hub, main blades and splitter blades. The main blades are equally spaced around the circumference of the hub. Each splitter blade is equally spaced between two adjacent main blades. Each main blade and splitter blade has suction and pressure surfaces formed in substa

A compressor impeller includes a hub, main blades and splitter blades. The main blades are equally spaced around the circumference of the hub. Each splitter blade is equally spaced between two adjacent main blades. Each main blade and splitter blade has suction and pressure surfaces formed in substantial compliance with normalized Cartesian coordinate values of X, Y, and Z set forth in Tables 1-4. When connected by smooth, continuing arcs, the normalized Cartesian coordinates form complete main blade and splitter blade shapes that are substantially matched by the main blade and splitter blade shapes of the compressor impeller.

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1. A compressor impeller comprising: a hub having a radius;a plurality of main blades connected to the hub, wherein each of the main blades is equally spaced around the circumference of the hub, each of the main blades comprising: a suction surface formed in substantial conformance with normalized C

1. A compressor impeller comprising: a hub having a radius;a plurality of main blades connected to the hub, wherein each of the main blades is equally spaced around the circumference of the hub, each of the main blades comprising: a suction surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 1; anda pressure surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 2; anda plurality of splitter blades connected to the hub, wherein each of the splitter blades is equally spaced around the circumference of the hub, and wherein each of the splitter blades is further equally spaced between two main blades, the two main blades being adjacent on the hub, each of the splitter blades comprising: a suction surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 3; anda pressure surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 4;wherein the normalized Cartesian coordinates, when connected by smooth, continuing arcs, form complete main blade and splitter blade shapes that are substantially matched by the main blade and splitter blade shapes of the compressor impeller. 2. The compressor impeller of claim 1, wherein each of the main blade and splitter blade surfaces are defined by scaling the set of Cartesian coordinates for the suction surface and the pressure surface to the radius R. 3. The compressor impeller of claim 2, wherein radius R is between 0.5 inches and 1.5 inches (or between 12.7 mm and 38.1 mm). 4. The compressor impeller of claim 2, wherein radius R is between 1.0 inches and 1.2 inches (or between 25.4 mm and 30.5 mm). 5. The compressor impeller of claim 2, wherein radius R is about 1.06±0.015 inches (or about 26.9±0.4 mm). 6. The compressor impeller of claim 1, wherein the plurality of main blades consists of eleven main blades and the plurality of splitter blades consists of eleven blades. 7. The compressor impeller of claim 1, wherein the suction and pressure surfaces of the main blade and the suction and pressure surfaces of the splitter blade are formed by machining, the machining employing a computer-controlled machining system capable of positioning control in five independent axes. 8. The compressor impeller of claim 1, wherein the compressor impeller is comprised of a single piece of forged titanium. 9. A compressor impeller blade set comprising: a main blade, the main blade comprising: a suction surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 1; anda pressure surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 2; anda splitter blade, the splitter blade comprising: a suction surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 3; anda pressure surface formed in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Table 4;wherein the normalized Cartesian coordinates, when connected by smooth, continuing arcs, form complete main blade and splitter blade shapes that are substantially matched by the main blade and splitter blade shapes of the compressor impellor blade set. 10. The compressor impeller blade set of claim 9, wherein the suction and pressure surfaces of the main blade and the suction and pressure surfaces of the splitter blade are formed by machining, the machining employing a computer-controlled machining system capable of positioning control in five independent axes. 11. The compressor impeller blade set of claim 9, wherein the blade set is comprised of forged titanium. 12. A method of manufacturing a compressor impeller, the method comprising: machining a single piece of metal to a near net shape of the compressor impeller;drilling the near net shaped metal piece to define a hub;machining the drilled, near net shaped metal piece with a computer-controlled machining system capable of positioning control in five independent axes to form main blades and splitter blades in substantial conformance with normalized Cartesian coordinate values of X, Y, and Z set forth in Tables 1-4.