Aircraft propeller blade retention
    1.
    发明授权
    Aircraft propeller blade retention 失效
    飞机螺旋桨叶片保留

    公开(公告)号:US4850801A

    公开(公告)日:1989-07-25

    申请号:US135779

    申请日:1987-12-21

    IPC分类号: B64C11/06 F16C19/18 F16C25/06

    CPC分类号: B64C11/06 F16C19/18 F16C25/06

    摘要: Preloading and retention of an aircraft propeller blade (12) are achieved by a preloading mechanism (85) received within an outer portion of a hub barrel(30) within which the blade is received. The preloading mechanism comprises an annular fastener (90) threaded into the barrel. A splined lock ring (125) prevents loosening or disengagement of the fastener from the barrel. Location of the preloading mechainsm at an outer location of the barrel allows the primary centrifugal load path from the blade into the barrel to be free from discontinuities and attendant stress concentrations.

    摘要翻译: 飞机螺旋桨叶片(12)的预加载和保持通过容纳在其中接收叶片(12)的轮毂筒(30)的外部部分内的预加载机构(85)来实现。 预压机构(85)包括螺纹连接到筒体(30)中的环形紧固件(90)。 花键锁环(125)防止紧固件(90)从筒体(30)松开或脱开。 在筒(30)的外部位置处的预加载机构(85)的位置允许从叶片(12)进入筒体(90)的初级离心载荷路径没有不连续性和伴随的应力集中。

    Flexible composite coupling
    2.
    发明授权
    Flexible composite coupling 失效
    柔性复合耦合

    公开(公告)号:US5551918A

    公开(公告)日:1996-09-03

    申请号:US843671

    申请日:1992-02-28

    IPC分类号: F16D3/72 F16D3/50

    CPC分类号: F16D3/725

    摘要: A flexible composite coupling (20) wherein a wound filament or roving is wound between two attachment members (22) and (24) and is fully or partially impregnated with a resin matrix such as urethane to form a flexible element (32). The attachment members (22) and (24) include radially extending flanges (26) and (28) which have a radiused periphery (30) formed on them, over which the flexible element (32) is wound. The flexible element (32) diverges inwardly from the flanges' (26) and (28) radiused periphery (30) to form opposed diaphragm portions (34) and (35) of the flexible element (32) which smoothly meet at a minimum diameter (36). Hoop winds (38) of a material with high strain capacity wrapped about this minimum diameter (36) pretension the filaments or roving within the flexible element (32).

    摘要翻译: 一种柔性复合联接器(20),其中缠绕的细丝或粗纱缠绕在两个附接构件(22)和(24)之间,并且完全或部分地浸渍有诸如聚氨酯的树脂基质以形成柔性元件(32)。 附接构件(22)和(24)包括径向延伸的凸缘(26)和(28),其上形成有形成在其上的圆角的周边(30),柔性元件(32)被缠绕在凸缘上。 柔性元件(32)从凸缘(26)和(28)向外扩散到圆周(30),以形成柔性元件(32)的相对的隔膜部分(34)和(35) (36)。 围绕该最小直径(36)缠绕的具有高应变能力的材料的缠绕风(38)预先将柔性元件(32)内的长丝或粗纱预紧。

    Locomotive engine inlet air apparatus and method of controlling inlet air temperature
    3.
    发明授权
    Locomotive engine inlet air apparatus and method of controlling inlet air temperature 有权
    机车发动机入口空气装置及其控制入口空气温度的方法

    公开(公告)号:US06327980B1

    公开(公告)日:2001-12-11

    申请号:US09515459

    申请日:2000-02-29

    IPC分类号: B61C502

    摘要: Automatic control of the temperature of the inlet air being supplied to the engine (12) of a locomotive (10) in order to optimize the performance of the engine (12) under a variety of ambient air temperatures and pressures. One or more valves (38) is utilized to control the flow of warm air from the engine compartment (14) into the air inlet path (20). The position of valve (38) is controlled by controller (42) in response to at least one of an ambient air temperature signal TA, an ambient atmospheric pressure signal PA, and an inlet air temperature signal TI. The temperature of the air flowing through the warm air flow path 28 may be controlled by selecting from among a plurality of possible inlets (30, 32, 50). By varying the volume and temperature of the air flowing through the warm air flow path (28), the temperature and density of the air supplied at the engine inlet (18) may be moderated across a broad range of ambient air temperatures and pressures.

    摘要翻译: 自动控制供应到机车(10)的发动机(12)的入口空气的温度,以便在各种环境空气温度和压力下优化发动机(12)的性能。 使用一个或多个阀(38)来控制从发动机室(14)进入空气入口路径(20)的暖空气的流动。 响应于环境空气温度信号TA,环境大气压力信号PA和入口空气温度信号TII中的至少一个,阀(38)的位置由控制器(42)控制。 可以通过从多个可能的入口(30,32,50)中的选择来控制流过暖风流路28的空气的温度。 通过改变流过暖空气流动路径(28)的空气的体积和温度,在发动机入口(18)处供应的空气的温度和密度可以在宽的环境空气温度和压力范围内缓和。