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    • 1. 发明申请
    • MECHANICAL SEAL ASSEMBLY
    • 机械密封组件
    • WO2007136453A3
    • 2008-11-13
    • PCT/US2007007474
    • 2007-03-26
    • CHESTERTON A W COAZIBERT HENRI VKOWALSKI CHRISTOPHER AATTENASIO ANN T
    • AZIBERT HENRI VKOWALSKI CHRISTOPHER AATTENASIO ANN T
    • F16J9/00F16J15/36F16J15/38
    • F16J15/3488Y10T403/592
    • A split mechanical composite seal assembly (10) for providing a seal between a rotating shaft (12) and a static surface (14). The split mechanical composite seal assembly includes first and second axially adjacent annular seal elements (20, 30). The first and second seal elements each include a sealing edge contacting the shaft to provide a respective seal between the first and second seal element and the shaft. A static housing (40) receives the first and second seal elements and engages the static surface to provide a static stationary seal, while concomitantly providing a flex region that engages the seal elements to form a dynamic seal therewith. A holder assembly (110) receives one seal element and may include a double-angled lead-in to facilitate installation of the seal element. The holder assembly may include a detent groove (189) for receiving and retaining an O-ring (188) disposed about the seal element. The static housing may comprise two mating segments having overlapping surfaces.
    • 一种用于在旋转轴(12)和静态表面(14)之间提供密封的分裂机械复合密封组件(10)。 分裂机械复合密封组件包括第一和第二轴向相邻的环形密封元件(20,30)。 第一和第二密封元件各自包括接触轴的密封边缘,以在第一和第二密封元件与轴之间提供相应的密封。 静态外壳(40)容纳第一和第二密封元件并接合静态表面以提供静态固定密封,同时提供与密封元件接合以形成动态密封的柔性区域。 保持器组件(110)接收一个密封元件并且可以包括双角度导入件以便于密封元件的安装。 保持器组件可包括用于接收和保持设置在密封元件周围的O形环(188)的止动槽(189)。 静态壳体可以包括具有重叠表面的两个配合段。
    • 2. 发明申请
    • BALANCED MECHANICAL SEAL ASSEMBLY
    • 平衡机械密封组件
    • WO2004079235A2
    • 2004-09-16
    • PCT/US2004006338
    • 2004-03-01
    • CHESTERTON A W COAZIBERT HENRI V
    • AZIBERT HENRI V
    • F16J15/34F16J
    • F16J15/3404F16J15/3448F16J15/3472F16J15/3484F16J15/38F16J15/40
    • A mechanical seal having a single rotatable seal ring having a pair of concentric seal faces to form a radially inner seal face and a radially outer seal face. The mechanical seal also includes first and second stationary seal rings, each having a seal face, where the seal face of the first stationary seal ring contacts the radially outer seal face of the rotatable seal ring and the seal face of the second stationary seal ring contacts the radially inner seal face of the rotatable seal ring. The seal also includes a sleeve adapted to be mounted about the rotating shaft and rotatably coupled thereto and to the rotatable seal ring, said sleeve having a flange portion that is configured for housing at least a portion of the rotatable seal ring, and a gland for housing at least partially the single rotary seal ring and the first and second stationary seal rings. Under positive and negative pressure conditions, the combined area of the seal piston areas are substantially identical to provide a balanced seal arrangement without requiring the use of axially movable components.
    • 一种具有单个可旋转密封环的机械密封件,其具有一对同心密封面,以形成径向内部密封面和径向外部密封面。 机械密封还包括第一和第二固定密封环,每个具有密封面,其中第一固定密封环的密封面与可旋转密封环的径向外部密封面接触,并且第二固定密封环接触件的密封面 可旋转密封环的径向内部密封面。 所述密封件还包括套筒,所述套筒适于围绕所述旋转轴安装并可旋转地联接到所述可转动密封环上,所述套筒具有凸缘部分,所述凸缘部分构造成用于容纳所述可旋转密封环的至少一部分,以及用于 至少部分地容纳单个旋转密封环和第一和第二固定密封环。 在正压和负压条件下,密封活塞区域的组合面积基本上相同,以提供平衡的密封装置,而不需要使用可轴向移动的部件。
    • 3. 发明申请
    • BALANCED MECHANICAL SEAL ASSEMBLY
    • 平衡机械密封组件
    • WO2004079234A2
    • 2004-09-16
    • PCT/US2004006171
    • 2004-03-01
    • CHESTERTON A W COAZIBERT HENRI V
    • AZIBERT HENRI V
    • F16J15/34F16J
    • F16J15/3484F16J15/3404F16J15/3448
    • A mechanical seal for providing a fluid-tight seal between a rotating shaft and a stationary housing comprises a first pair of seal members for sealing and separating a process fluid from a barrier fluid. The first pair of seal members comprises a first rotatable seal ring having a rotary seal face and a first stationary seal ring having a stationary seal face engaging the rotary seal face. The first pair of seal members further includes generally radially extending piston areas on the rear sides of the primary seal members for biasing seal faces together. The piston areas are defined by a movable shuttle member that is connected to the rotary seal ring and a sleeve, which is in turn connected to the rotating shaft. Under normal operating conditions, the shuttle is moved to a first position to allow the process fluid to exert a force on a first piston area to bias the seal faces together. Under reverse operating conditions, when the barrier fluid pressure is greater than the process fluid pressure, the shuttle member is moved to a second position where it exerts a force, along with the barrier fluid, on a second piston area to bias the seal faces together.
    • 用于在旋转轴和固定壳体之间提供流体密封的机械密封件包括用于将过程流体与阻挡流体密封和分离的第一对密封构件。 第一对密封构件包括具有旋转密封面的第一可旋转密封环和具有与旋转密封面接合的固定密封面的第一固定密封环。 第一对密封构件还包括在主密封构件的后侧上的大致径向延伸的活塞区域,用于将密封面偏压在一起。 活塞区域由连接到旋转密封环和套筒的可移动梭子件限定,套筒又连接到旋转轴。 在正常操作条件下,梭子移动到第一位置以允许过程流体在第一活塞区域上施加力以将密封面偏压在一起。 在反向操作条件下,当阻挡流体压力大于过程流体压力时,往复运动构件移动到第二位置,在第二位置,其与阻流流体一起施加在第二活塞区域上以将密封面偏置在一起 。