Valve seal assembly
    1.
    发明授权
    Valve seal assembly 失效
    阀门密封组件

    公开(公告)号:US06161839A

    公开(公告)日:2000-12-19

    申请号:US31274

    申请日:1998-02-27

    摘要: The invention is a valve seal assembly (43) illustrated in the context of a compressor bleed valve (36) for a gas turbine engine. The seal assembly includes a seal carrier (44) having a circumferentially extending groove (72) bordered by a pair of opposing flanges (74). The flanges cooperate to define a recess (76) portion of the groove and a throat (78) portion of the groove. The seal assembly also includes one or more seal elements (46) each having a base (82), conformal with the recess, and longitudinally captured in the recess by the flanges. A stem (84) extends from the base and projects through the throat, and a sealing bead (86) extends from the stem. An insert (88) extends circumferentially in the base for stiffening the base about a circumferential bending axis (C). An access port (96) facilitates installation and removal of the seal elements (46) and a cover (98) traps the seal elements in the carrier (44). During operation of the valve, shearing forces act on the seal elements as the valve approaches its fully closed position. The flanges and the stiffness of the insert resist any tendency of the shearing forces to peel the seal element out of the groove.

    摘要翻译: 本发明是在用于燃气涡轮发动机的压缩机排放阀(36)的上下文中所示的阀密封组件(43)。 密封组件包括密封载体(44),其具有由一对相对的凸缘(74)邻接的周向延伸的凹槽(72)。 这些凸缘配合以限定槽的凹部(76)部分和槽的喉部(78)部分。 密封组件还包括一个或多个密封元件(46),每个密封元件(46)具有与凹部共形的基部(82),并且通过凸缘纵向捕获在凹部中。 杆(84)从基部延伸并突出通过喉部,并且密封珠(86)从杆延伸。 插入件(88)在基部周向延伸,用于围绕圆周弯曲轴线(C)加强基座。 入口(96)有助于密封元件(46)的安装和移除,并且盖(98)将密封元件捕获在载体(44)中。 在阀的操作期间,当阀门接近其完全关闭位置时,剪切力作用在密封元件上。 凸缘和插入件的刚度抵抗剪切力将密封元件从凹槽中剥离的任何趋势。

    Roller assembly for guiding an actuating ring
    4.
    发明授权
    Roller assembly for guiding an actuating ring 有权
    用于引导致动环的滚子组件

    公开(公告)号:US6106227A

    公开(公告)日:2000-08-22

    申请号:US261606

    申请日:1999-02-26

    摘要: A roller assembly for guiding the motion of a circumferentially extending ring in a gas turbine engine, where the roller assembly has a pin and a collar. The pin has a head which engages a rotatable element, which in turn adapts the roller assembly to engage a track and which adapts the roller assembly to receive an external force from the track under operative conditions, causing a reactive force on the rotatable element to resist the external force. A gap formed between a shank of the pin and the collar decreases the bending stresses in the shank in comparison to forces acting on the pin at an end of the collar which engages a support.

    摘要翻译: 用于引导燃气涡轮发动机中周向延伸的环的运动的辊组件,其中辊组件具有销和套环。 该销具有与可旋转元件接合的头部,该头部又适配于辊组件以接合轨道,并且其适配于辊组件以在操作条件下从轨道接收外力,从而使可旋转元件上的反作用力抵抗 外力。 与在接合支撑件的轴环的端部处作用在销上的力相比,形成在销和轴环之间的间隙减小了柄中的弯曲应力。