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公开(公告)号：US5388806A
公开(公告)日：1995-02-14
申请号：US253337
申请日：1994-06-03
CPC分类号： F16K1/2266
摘要： A valve comprising a valve body having a first end, a second end, and a through opening forming a fluid flow passage and a wall surrounding a portion of the fluid flow passage, the fluid flow passage defining an axis that is co-axial with the wall. A valve element is rotatably mounted in the valve body, the valve element having an annular, radiused sealing surface and being rotatable around a second axis perpendicular to the first axis passing through the fluid flow passage. A valve seat assembly is disposed in the valve body for sealing engagement with the sealing surface of the valve element, the valve seat assembly being axially displaced from the second axis toward the first end of the valve body, the valve seat assembly comprising a seal ring of a resilient, plastic material and having an annular radially inwardly facing first surface for sealing engagement with the sealing surface on the valve element and an annular, radially outwardly facing second surface, an annular radially outwardly facing groove being formed in the second surface. An elastomeric backing ring is disposed in the groove, the backing ring being circular in cross-section and having a center-line defined by a first plane passing through the center of the backing ring perpendicular to the first axis, the engagement between the sealing surface on the valve element and the first surface on the seal ring being substantially annular, line contact when the valve element is in the closed position and in the absence of any fluid pressure acting on the valve element, the line contact engagement lying in a second plane axially displaced from the first plane in a direction away from the second axis toward the first end of the valve body. There are also provided retaining means for retaining the valve seat assembly in the valve body.
摘要翻译： 一种阀，包括具有第一端，第二端和形成流体流动通道的通孔的阀体和围绕流体流动通道的一部分的壁，所述流体流动通道限定与所述流体流动通道同轴的轴线 壁。 阀元件可旋转地安装在阀体中，阀元件具有环形的半圆形密封表面，并且能够绕垂直于穿过流体流动通道的第一轴线的第二轴线旋转。 阀座组件设置在阀体中，用于与阀元件的密封表面密封接合，阀座组件从第二轴线朝向阀体的第一端轴向移位，阀座组件包括密封环 具有弹性的塑料材料并且具有环形径向向内的第一表面，用于与阀元件上的密封表面密封接合和环形的径向向外的第二表面，在第二表面中形成有环形径向向外的凹槽。 弹性垫圈设置在凹槽中，背衬环的横截面为圆形，并且具有由垂直于第一轴线穿过背衬环的中心的第一平面限定的中心线，密封表面 在所述阀元件上，并且所述密封环上的所述第一表面基本上是环形的，当所述阀元件处于所述关闭位置并且在没有作用在所述阀元件上的任何流体压力时，所述线接触位于所述第二平面 从第一平面沿远离第二轴线的方向朝向阀体的第一端轴向移位。 还提供了用于将阀座组件保持在阀体中的保持装置。
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公开(公告)号：US5054374A
公开(公告)日：1991-10-08
申请号：US624341
申请日：1990-12-07
IPC分类号： F15B15/12
CPC分类号： F15B15/125 , Y10S277/91
摘要： A rotary actuator defining a first arcuate chamber and a second chamber, the housing having an inwardly projecting, peripherally extending rib which defines an aperture in open communication with the arcuate chamber, a peripherally extending groove being formed in the rib in surrounding relationship to the aperture, the groove having first and second peripherally extending spaced side surfaces, an arcuate shaped piston being disposed in the housing for reciprocable movement in the arcuate chamber, a shaft rotatably journaled in the housing and connected to the piston and being rotatable in response to movement of the piston, a floating seal disposed in the groove for effecting sealing between the piston and the housing, the seal being in sealing engagement with the first and second side surfaces forming the groove, a fluid pressure inlet to introduce fluid pressure into at least one of the arcuate chamber or the second chamber to provide a pressurized chamber and effect movement of the piston in a first direction, a return system to effect movement of the piston in an opposite, second direction, the housing being provided with a passageway to transfer pressure from the pressurized chamber to the groove outwardly of the seal such that fluid pressure from the pressurized chamber acts to urge the seal inwardly into sealing engagement with the piston and the housing.
摘要翻译： 旋转致动器限定第一弧形腔室和第二腔室，所述壳体具有向内突出的周向延伸的肋，其限定与所述弧形腔室开放连通的孔，所述肋沿周向延伸形成在所述肋中， 所述凹槽具有第一和第二周向延伸的间隔开的侧表面，弧形活塞设置在所述壳体中用于在所述弧形腔室中往复移动;轴，可旋转地轴颈支撑在所述壳体中并连接到所述活塞并且可响应于 活塞，设置在凹槽中的浮动密封件，用于实现活塞和壳体之间的密封，密封件与形成凹槽的第一和第二侧表面密封接合;流体压力入口，用于将流体压力引入至少一个 拱形腔室或第二腔室提供加压腔室并实现运动 活塞在第一方向上，返回系统使得活塞沿相反的第二方向运动，该壳体设置有一个通道，用于将压力从加压腔传递到槽的外部，使得来自加压的流体压力 腔体用于将密封件向内推动以与活塞和壳体密封接合。
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公开(公告)号：US5007330A
公开(公告)日：1991-04-16
申请号：US452207
申请日：1989-12-18
IPC分类号： F15B15/12
CPC分类号： F15B15/125 , Y10S277/91
摘要： A rotary actuator comprising a housing which defines an arcuate chamber, the housing including a first monolithic portion in which the arcuate chamber is completely contained, a piston disposed in the housing for reciprocable movement in the arcuate chamber, a shaft journaled in the housing and connected to the piston and being rotated in response to movement of the piston, a floating seal assembly carried by one of the piston or the housing for effecting sealing between the piston and the housing, a fluid pressure port to introduce fluid into the housing to effect movement of the piston in the first direction and a means such as fluid pressure or a spring return to effect movement of the piston in an opposite second direction, the actuator in one preferred embodiment employing a spring return which provides a substantially constant torque acting upon the shaft as the spring moves from a compressed first position to an uncompressed second position such that the torque acting upon the shaft in both rotational directions is substantially constant.
摘要翻译： 一种旋转致动器，其包括限定弓形腔室的壳体，所述壳体包括第一整体部分，其中所述弧形腔室完全容纳在所述壳体中，所述第一整体部分设置在所述壳体中，用于在所述弓形腔室中往复运动，轴轴承在所述壳体中并连接 并且响应于活塞的移动而旋转，由活塞或壳体中的一个承载的浮动密封组件用于实现活塞和壳体之间的密封，用于将流体引入壳体以实现运动的流体压力端口 在一个优选实施例中，致动器采用弹簧复位，其提供作用在轴上的基本上恒定的扭矩，其中，所述第一方向上的活塞和诸如流体压力或弹簧的装置返回以实现活塞在相反的第二方向上的移动， 因为弹簧从压缩的第一位置移动到未压缩的第二位置，使得作用在s上的扭矩 在两个旋转方向上的方向基本上是恒定的。
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公开(公告)号：US5427354A
公开(公告)日：1995-06-27
申请号：US253963
申请日：1994-06-03
CPC分类号： F16K1/2263
摘要： A valve comprising a valve body having a through opening that forms a fluid passage and having a wall surrounding a portion of the fluid passage, the wall defining a radially inwardly facing surface, the valve further including a valve element rotatably mounted in the valve body. To retain a valve seat in the valve body, there is provided a ring that has a peripheral surface shaped and sized such that the peripheral surface closely faces the radially inwardly facing surface of the wall when the ring is positioned within the through opening. The ring has a first axially facing side and a second axially facing side and a notch formed in the first side, the ring also having a second, radially outwardly facing annular groove in the peripheral surface that intersects the notch. When the ring is positioned within the through opening of the valve body, the first and second annular grooves are in register and thereby define an annular channel. A wire member having a first end and a second end has its first end removably fixed in the first annular groove such that, when the notch on the ring is in register with the fixed first end, rotation of the ring relative to the valve body in a direction away from the first end of the wire member and along the length of the wire member toward the second end threads the wire member into the channel.
摘要翻译： 一种阀，包括具有形成流体通道并具有围绕流体通道的一部分的壁的通孔的阀体，所述壁限定径向向内的表面，所述阀还包括可旋转地安装在阀体中的阀元件。 为了将阀座保持在阀体中，提供了一个环，该环具有圆周表面的形状和尺寸，使得当环位于通孔内时，外周表面紧密地面向壁的径向向内的表面。 环具有形成在第一侧中的第一轴向相对侧和第二轴向相对侧和凹口，环在圆周表面中还具有与凹口相交的第二径向向外的环形凹槽。 当环位于阀体的通孔内时，第一和第二环形槽被对准，从而限定一个环形通道。 具有第一端和第二端的线构件具有可拆卸地固定在第一环形槽中的第一端，使得当环上的凹口与固定的第一端对准时，环相对于阀体的旋转 远离线构件的第一端并且沿着线构件的长度朝向第二端的方向将线构件螺纹连接到通道中。
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