A blade has an airfoil extending radially outwardly of a dovetail. The dovetail has edges that will be at circumferential sides of the blade when the blade is mounted within a rotor. A bottom surface of the dovetail will be radially inward when the rotor blade is mounted in a rotor, and is formed such that a circumferentially central portion of the bottom surface is radially thicker than are circumferential edges. A fan and a gas turbine engine are also described.
申请公布号
WO2014014539(A3)
申请公布日期
2014.03.27
申请号
WO2013US38573
申请日期
2013.04.29
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
WHITEHURST, SEAN A.;MCKAVENEY, CHRISTOPHER S.;MCCOMB, PATRICK JAMES