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    • 1. 发明授权
    • Braze-free connector utilizing a sealant coated ferrule
    • 无铅连接器,采用密封剂涂覆的套圈
    • US07419192B2
    • 2008-09-02
    • US11180382
    • 2005-07-13
    • Jeffrey T. BenoitRobert H. DoldSivakumar GopalnarayananLee A. Hoffman
    • Jeffrey T. BenoitRobert H. DoldSivakumar GopalnarayananLee A. Hoffman
    • F16L19/06
    • F16L19/061F16L19/065
    • A braze-free connector suitable for use in a refrigeration system that includes a connector body having a circular opening passing therethrough. The opening has a converging section that tapers downwardly from the entrance to the opening toward the back of the opening. A ferrule is slidably mounted upon a refrigerant tube which is inserted into the opening to place a tapered collapsible section of the ferrule in contact with the tapered section of the opening. The non-collapsible section of the ferrule is keyed to a nut which in turn is mated with a male thread formed on the connector body whereby the collapsible section of the ferrule is forced into engagement with the refrigerant tube. A pressure sensitive sealant is pre-coated upon at least the collapsible section of the ferrule which is activated as the ferrule is forced into engagement with the refrigerant tube.
    • 适用于制冷系统的无钎焊连接器,其包括具有通过其的圆形开口的连接器主体。 开口具有从入口到开口向开口向后逐渐变细的会聚部分。 套圈可滑动地安装在制冷剂管上,该制冷剂管被插入到开口中以使套圈的锥形可折叠部分与开口的锥形部分接触。 套圈的不可折叠部分被键合到螺母,螺母又与形成在连接器主体上的外螺纹配合,由此套圈的可折叠部分被迫与制冷剂管接合。 压敏密封剂至少预先涂覆在套圈的可折叠部分上,当套圈被迫与制冷剂管接合时,其被激活。
    • 6. 发明授权
    • High torque actuation system for an active rotor control system
    • 用于主动转子控制系统的高扭矩驱动系统
    • US06196796B1
    • 2001-03-06
    • US09296737
    • 1999-04-22
    • Steven A. LozyniakPeter Frederick LorberFred W. KohlheppLee A. HoffmanRobert MortonRichard B. Ferraro
    • Steven A. LozyniakPeter Frederick LorberFred W. KohlheppLee A. HoffmanRobert MortonRichard B. Ferraro
    • B64C900
    • B64C27/615B64C2027/7272Y02T50/34
    • An actuation system for pivoting a flap on a helicopter rotor blade to reduce the interaction of the blade with the preceding blade vortex. The actuation system includes a fluid supply which is connected to first and second fluid supply lines. The fluid supply lines convey flows of pressurized fluid from the fluid supply to an actuator. The actuator includes a housing mounted within the rotor blade and having a channel formed in it. A butterfly shaft is pivotally mounted within the channel and has laterally extending arms which separate the channel into four lobes. A first port connects the first fluid supply line with two diametrically opposed lobes in the channel. A second port connects the second fluid supply line with the other two diametrically opposed lobes in the channel. A torque coupling is attached to the butterfly shaft and engaged with the flap such that rotation of the torque coupling produces concomitant rotation of the flap. The pressurization of the first fluid supply line causes the torque coupling to rotate in a first direction. The pressurization of the second supply fluid line causes the torque coupling to rotate in the opposite direction.
    • 一种致动系统,用于使直升机转子叶片上的翼片枢转,以减小叶片与前一叶片涡流的相互作用。 致动系统包括连接到第一和第二流体供应管线的流体供应源。 流体供应管线将加压流体从流体供给流向致动器。 致动器包括安装在转子叶片内并具有形成在其中的通道的壳体。 蝶形轴枢转地安装在通道内并具有横向延伸的臂,其将通道分成四个凸角。 第一端口将第一流体供应管线与通道中的两个直径相对的叶片连接。 第二端口将第二流体供应管线与通道中的另外两个直径相对的叶片连接。 扭矩联轴器连接到蝶形轴并与翼片接合,使得扭矩联接器的旋转产生翼片的伴随旋转。 第一流体供应管线的加压使得扭矩联接沿第一方向旋转。 第二供给流体管路的加压使得扭矩联接沿相反方向旋转。