公开(公告)号：WO2017058329A2

公开(公告)日：2017-04-06

申请号：PCT/US2016/041167

申请日：2016-07-06

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONS

Inventor： LINCH, Jonathon J. ,  RAHRIG, Kyle M.

IPC: B64C11/00

CPC classification number: B64C11/001 ,  B64C39/024 ,  B64C39/10 ,  B64C2039/105 ,  B64C2201/028 ,  B64C2201/104 ,  B64C2201/165

Abstract: A propeller includes a hub coaxially surrounding a longitudinal axis. A ring shroud coaxially surrounds the longitudinal axis and is spaced radially from the hub. The ring shroud includes an inner ring surface and a radially spaced, oppositely facing outer ring surface. At least one propeller blade is fixedly attached to both the hub and the inner ring surface and extends radially therebetween for mutual rotation therewith. At least one extending blade has a first extending blade end radially spaced from a second extending blade end. The first extending blade end is fixedly attached to the outer ring surface. The second extending blade end is cantilevered from the first extending blade end and is radially spaced from the ring shroud.

Abstract translation: 螺旋桨包括同轴地围绕纵向轴线的轮毂。 环形护罩同轴地围绕纵向轴线并与轮毂径向间隔开。 环形护罩包括内环表面和径向间隔开的相对的外环表面。 至少一个螺旋桨叶片固定地附接到轮毂和内环表面并且在其间径向延伸以与其相互旋转。 至少一个延伸叶片具有与第二延伸叶片端部径向间隔开的第一延伸叶片端部。 第一延伸叶片端固定地附接到外环表面。 第二延伸叶片端部从第一延伸叶片端部悬臂并且与环形护罩径向间隔开。