Patent ID: 9085984
Filing Date: 2015-07-21
Classification: F01D,F05D

Abstract:
1. An airfoil comprising: a. a leading edge; b. a trailing edge downstream from the leading edge; c. a pressure surface between the leading and trailing edges; d. a suction surface between the leading and trailing edges and opposite the pressure surface; e. a first convex section on the suction surface, wherein the first convex section decreases in curvature downstream from the leading edge; f. a throat on the suction surface downstream from the first convex section; g. a second convex section on the suction surface downstream from the throat; h. a first convex segment of the second convex section, wherein the first convex segment of the second convex section increases in curvature; and i. a first concave section on the pressure surface and a second concave section on the pressure surface downstream from the first concave section, wherein the first concave section increases in curvature downstream from the leading edge and the second concave section increases in curvature downstream from the first concave section.