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1. 发明授权

US06764280B2 Multi-bladed tail rotor hub design for coriolis relief 有权
标题翻译：用于科里奥利浮雕的多叶尾转子轮毂设计
公开(公告)号：US06764280B2
公开(公告)日：2004-07-20
申请号：US10090359
申请日：2002-03-04
申请人： Ajay Sehgal , Cecil Covington , David Haynie , Joseph Zierer , Eric Boyle
发明人： Ajay Sehgal , Cecil Covington , David Haynie , Joseph Zierer , Eric Boyle
IPC分类号： B64C2735
CPC分类号： B64C27/35 , B64C27/48 , B64C27/82
摘要： A multi-bladed tail rotor assembly is disclosed that provides higher aerodynamic performance, damage tolerant design with 10,000-hour life expectancy, and which requires low maintenance through the use of composites and elastomerics. The tail rotor hub assembly includes two stacked yoke assemblies having multi-bladed teetering rotors, each mounted on a single drive mast. Each yoke assembly includes a yoke hub having a transverse bore therethrough, a bearing assembly disposed within the bore, and retention means for aligning and securing the bearing assembly within the bore. Each bearing assembly includes a trunnion portion having trunnion arms that extend outwardly from a trunnion body portion, and an elastomeric bearing disposed about each trunnion arm. The tail rotor assembly utilizes a composite twist strap flexure to accommodate collective pitch control integral with each rotor blade.
摘要翻译：公开了一种多叶片尾转子组件，其提供更高的空气动力性能，具有10,000小时寿命的损伤容限设计，并且其需要通过使用复合材料和弹性体的低维护。尾部转子轮毂组件包括两个堆叠的轭组件，其具有多叶片旋转转子，每个安装在单个驱动桅杆上。每个轭组件包括具有穿过其中的横向孔的轭架，设置在孔内的轴承组件和用于使轴承组件对准并固定在孔内的保持装置。每个轴承组件包括具有从耳轴本体部分向外延伸的耳轴臂的耳轴部分和围绕每个耳轴臂设置的弹性体轴承。尾部转子组件利用复合扭曲带弯曲以适应与每个转子叶片成一体的总体俯仰控制。

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