Patent ID: 8333559
Filing Date: 2012-12-18
Classification: F04D

Abstract:
1. An axial fan outlet guide vane comprising: pressure and suction surfaces, extending radially between inner and outer end walls and axially between leading and trailing edges; a spanwise stacking line defining the three dimensional distribution of airfoil mid-chord points of said vane; said stacking line originating at said inner end wall and being approximately straight, while leaning circumferentially toward the incoming swirl over the majority of the radial span, and forming the radially inner portion of said vane; said stacking line being curved abruptly in the opposite direction over the radially outboard spanwise portion, so as to lean away from the incoming swirl; wherein said radially outboard portion of said vane includes a gradual increase in vane stagger angle, vane camber angle, and vane chord.