公开(公告)号：US3682128A

公开(公告)日：1972-08-08

申请号：US3682128D

申请日：1970-09-10

申请人： WAYNE DUNHAM

发明人： DUNHAM WAYNE

IPC分类号： B63H1/12 ,  B63H5/08

CPC分类号： B63H23/34 ,  B63H2001/045 ,  B63H2001/185

摘要： A propeller assembly comprises a plurality of hubs mounted for rotation on an axis which is transverse to the direction of movement of the boat, each hub haVing a plurality of radially extending blades which are curved and present crowned, convex surfaces to the water. The assembly is disposed, either within the boat or attached to the rear transom, so that when the boat is in motion the hubs are tangent to the surface of the water and press down on the surface of the water, and the blades slide into, and out of, the water endwise. The blades on the hubs of a paIr of hubs are opposed and angularly related one to the other so that they impel water inwardly toward one another and back, or outwardly away from one another and back, but not upwardly.

摘要翻译： 螺旋桨组件包括多个轮毂，其安装成在横向于船的运动方向的轴线上旋转，每个轮毂具有多个径向延伸的叶片，所述多个径向延伸的叶片是弯曲的并且呈现凸起的凸面到水面。 组件设置在船内或附接到后横梁上，使得当船运动时，轮毂与水表面相切，并向下压在水面上，并且叶片滑入， 并从水中流出。