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Drag reducing fairing for landing gear

机译:用于起落架的减阻整流罩

摘要

A drag-reducing construction adapted for use with a non- retractable landing gear for aircraft which includes an oleo strut and two torque links. The improvement involves placing an aerodynamically streamlined afterbody behind the cyindrical oleo strut, and the afterbody enveloping the torque links so as to shield them from the airstream during flight. The afterbody may be one- piece or several pieces, and it is rigidly attached to one or both of the torque links; it rotates out of the way when the oleo strut is stroked--such as during landing. In a specific embodiment having a relatively short stroke (e.g., approx. 5 inches), a single afterbody in the form of a hollow shell is rigidly attached to one of the torque links; and the aterbody is relatively tall so that it at least partially envelopes the other torque link. In another embodiment, two V-shaped shells are rigidly attached to the two torque links, with one of the shells being slightly narrower than the other so that it will fold within the other when the oleo strut is stroked. If mechanical interference during folding of the torque links would preclude making the entire afterbody out of rigid materials, a sponge-like body may be used for some small portions of the afterbody. The afterbody may be an appendage which is firmly attached to a respective torque link with mechanical fasteners or bonding a agent such as glue; or, the afterbody may be integrally formed with the torque link. Auxiliary fairings may be added in the vicinity of the landing gear and/or a wheel fairing to merge with the drag-reducing construction so as to provide a smooth aerodynamic surface over the entire landing gear during flight.
机译:一种适于与飞机的不可缩回起落架一起使用的减阻构造,其包括油压支柱和两个扭矩连杆。改进包括将空气动力学精简的尾管放置在圆筒形油油撑的后面,尾管将扭矩连杆包裹起来,以便在飞行过程中将其与气流隔离。尾架可以是一件或几件,并且牢固地连接到一个或两个扭矩连杆上。当油杆被抚摸时,它会旋转(例如在着陆时)。在具有相对短的行程(例如,大约5英寸)的特定实施例中,中空壳形式的单个后车身刚性地附接到扭矩连杆之一上。车体相对较高,因此它至少部分包裹了另一个扭矩杆。在另一个实施例中,两个V形壳刚性地附接到两个扭矩连杆,其中一个壳比另一个壳稍窄,使得当油压撑杆被行程时,它将在另一个壳内折叠。如果扭矩链节折叠期间的机械干扰会阻止整个后车身用刚性材料制成,则可以在后车身的一些小部分使用海绵状车身。尾部可以是一个附件,该附件通过机械紧固件牢固地连接到相应的扭力链上,或粘结诸如胶的试剂。或者,后车身可以与扭矩连杆一体地形成。可以在起落架和/或轮罩附近添加辅助整流罩,以与减阻结构合并,以便在飞行过程中在整个起落架上提供光滑的空气动力学表面。

著录项

  • 公开/公告号US4027836A

    专利类型

  • 公开/公告日1977-06-07

    原文格式PDF

  • 申请/专利权人 SEIBEL;JULIA K.;

    申请/专利号US19760662425

  • 发明设计人 JULIA K. SEIBEL;

    申请日1976-03-01

  • 分类号B64C25/32;

  • 国家 US

  • 入库时间 2022-08-22 23:32:30

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