公开(公告)号：US20130121834A1

公开(公告)日：2013-05-16

申请号：US13297300

申请日：2011-11-16

Applicant: BARRY BARNETT

Inventor： BARRY BARNETT

IPC: F01D5/02

CPC classification number: F01D5/30 ,  F01D5/02 ,  F01D5/14 ,  F02K3/06 ,  F05D2220/32 ,  F05D2240/20 ,  F05D2260/941

Abstract: A fan rotor has a fan web and a plurality of circumferentially spaced-apart fan blades extending radially outwardly from an outer rim of the fan web. The outer rim is integrally connected to an inner rim through an axially facing web section. The web section has an inward concavature and extends aft of the center of gravity of the fan blades to shift the center of gravity of the hub rearwards while maintaining airfoil stress below critical levels. The rim section may have an inwardly projecting annular channel formed in a leading edge thereof and tuned to the 2M3ND mode of the fan hub.

Abstract translation: 风扇转子具有风扇腹板和从风扇腹板的外缘径向向外延伸的多个周向间隔开的风扇叶片。 外缘通过轴向面对的腹板部分整体连接到内缘。 腹板部分具有向内的凹陷并且延伸到风扇叶片的重心的后方，以使桨毂的重心向后移动，同时保持翼型压力低于临界水平。 边缘部分可以具有形成在其前缘中的向内突出的环形通道并且被调谐到风扇轮毂的2M3ND模式。