中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

291 records (took 0.013 seconds)

    Valve
    41.
    发明授权
    Valve 失效
    阀

    公开(公告)号：US4319734A

    公开(公告)日：1982-03-16

    申请号：US241724

    申请日：1981-03-09

    Applicant: Ali Acar

    Inventor： Ali Acar

    IPC: F16K5/06 ,  F16K5/20 ,  F16K25/00

    CPC classification number: F16K5/0678 ,  F16K5/201

    Abstract: A ball valve having a cylinder slidable in a port. The cylinder has a lip which is pressed, by a spring, against a spherical surface surrounding a passage through the ball. A sleeve is slidable to a position over the cylinder, the sleeve having an annular groove adjacent the lip and a first seal therein. The sleeve has a portion contiguous to the cylinder at the end thereof opposite the lip, a second seal being provided between the housing and the sleeve portion. If C is the inside diameter of the lip, if B is the outside diameter of the length of the cylinder having the groove, if A is the outside diameter of the sleeve portion, if A>C, and if C>B, the valve will seal for flow in either direction or for zero flow all at, say, 3000 psi.

    Abstract translation: 一种球阀，具有可在端口中滑动的气缸。 圆筒具有通过弹簧压靠围绕通过球的通道的球形表面的唇缘。 套筒可以滑动到气缸上方的位置，套筒具有邻近唇缘的环形槽和其中的第一密封件。 套筒在与唇缘相对的端部处具有与圆筒相邻的部分，第二密封件设置在壳体和套筒部分之间。 如果C是唇的内径，如果B是具有凹槽的圆筒的长度的外径，如果A是套筒部分的外径，如果A> C，并且如果C> B，则阀 将密封任何一个方向的流量或零流量，例如3000 psi。

    Ball valve assembly
    42.
    发明授权
    Ball valve assembly 失效
    球阀总成

    公开(公告)号：US4293038A

    公开(公告)日：1981-10-06

    申请号：US42257

    申请日：1979-05-24

    Applicant: Robert W. Evans

    Inventor： Robert W. Evans

    IPC: E21B23/00 ,  E21B34/00 ,  E21B34/12 ,  F16K5/20

    CPC classification number: E21B23/006 ,  E21B34/12 ,  F16K5/201 ,  E21B2034/002 ,  Y10T137/86936

    Abstract: An improved mounting and sealing assembly is provided for a rotating ball valve required to open under increased differential pressures and close against high flow rates. The valve assembly includes a trunnion-mounted ball and two pressure biased sealing assemblies. The primary seal constitutes an elastomeric seal element which is axially shiftable into engagement with the ball, and the secondary seal comprises a metallic element which is also axially shiftable relative to the ball. To open the valve, the seals are moved in sequence axially away from the ball and the hydraulic seal is fully broken before the ball is rotated. In closing, the ball is rotated to its closed position and the seals then moved axially in sequence into contact with the ball.

    Abstract translation: 提供了一种改进的安装和密封组件，用于在增加的压差下打开并且接近高流速所需的旋转球阀。 阀组件包括耳轴安装球和两个压力偏压密封组件。 主密封件构成弹性体密封元件，其可轴向移动成与球接合，并且次级密封件包括相对于球轴向移动的金属元件。 为了打开阀门，密封件沿轴向移动离开球，液压密封件在球旋转之前完全断开。 关闭时，球旋转到其关闭位置，然后密封件依次轴向移动以与球接触。

    Metal seat assemblies for valves
    43.
    发明授权
    Metal seat assemblies for valves 失效
    阀门金属座椅组件

    公开(公告)号：US4262688A

    公开(公告)日：1981-04-21

    申请号：US42394

    申请日：1979-05-25

    Applicant: Ludwik S. Bialkowski

    Inventor： Ludwik S. Bialkowski

    IPC: F16K5/06 ,  F16K5/20 ,  F16K51/00 ,  F16J15/38 ,  F16K5/00 ,  F16K25/00

    CPC classification number: F16K5/201 ,  F16K5/0663 ,  Y10T137/4273

    Abstract: A metal seat assembly (40) for sealing against the sealing surface of a valve member movable between open and closed positions. The seat assembly comprises an outer metallic ring (44) having an inwardly extending metal seal lip (58) hinged to the main body (48) of the ring by a reduced thickness portion. An intermediate metal backing ring (45) has a plurality of spaced fingers engaging the hinged metal lip to urge continuously the lip (58) into tight sealing contact with the valve member, and the backing ring may be adjusted to control the force exerted by the fingers against the metal lip. An innermost metal wiper ring (46) adjacent the flexible metal lip is urged continuously into contact with the sealing surface of the valve member to minimize contact of foreign matter with the sealing lip.

    Abstract translation: 一种金属座椅组件（40），用于密封可在打开和关闭位置之间移动的阀构件的密封表面。 座椅组件包括外金属环（44），其具有向内延伸的金属密封唇缘（58），所述金属密封唇缘通过减小的厚度部分铰接到环的主体（48）。 中间金属背衬环（45）具有多个间隔开的指状物接合铰链金属唇缘，以连续推动唇部（58）与阀构件的紧密密封接触，并且可以调节背衬环以控制由 手指靠着金属唇。 邻近柔性金属唇缘的最里面的金属擦拭环（46）被持续地与阀构件的密封表面接触，以最小化异物与密封唇的接触。

Patent Agency Ranking