公开(公告)号：US06321774B1

公开(公告)日：2001-11-27

申请号：US09483609

申请日：2000-01-14

申请人： Karl-Heinz Ott

发明人： Karl-Heinz Ott

IPC分类号： F16K326

CPC分类号： F16K31/52 ,  F02K9/58 ,  F16K1/12 ,  F16K31/047 ,  F16K31/52433 ,  F16K31/54 ,  G05D16/202 ,  Y10T137/3367 ,  Y10T137/86734

摘要： A motor-driven control valve for cryogenically liquified rocket propellant comprises a valve casing with a co-axial inlet port and outlet port, a slidable regulating sleeve, an electric motor, a gear, a drive chamber within the casing, and a drive transmission in the drive chamber. The regulating sleeve is centrally arranged and slidably mounted and sealed in the valve casing and the drive chamber. Flow slots are circumferentially distributed around the regulating sleeve. The externally mounted motor and gear control the position of the regulating sleeve through the drive transmission. Sliding adjustment of the position of the sleeve regulates the exposed cross-section of the flow slots, thereby also regulating the open and closed switching of the control valve. The regulating sleeve is the only moving part exposed to the flowing liquid, and the liquid pressure and flow forces act only radially on the axially slidable sleeve, so that the hydraulic forces do not influence the driving force required for opening and closing the valve.

摘要翻译： 用于低温液化火箭推进剂的电动控制阀包括具有同轴入口和出口的阀壳，可滑动调节套，电动马达，齿轮，壳体内的驱动室，以及驱动传动装置 驱动室。 调节套筒集中布置并可滑动地安装并密封在阀壳体和驱动室中。 流动槽围绕调节套筒周向分布。 外部安装的电机和齿轮通过驱动传动装置控制调节套筒的位置。 套筒的位置的滑动调节调节流槽的暴露横截面，从而也调节控制阀的打开和闭合切换。 调节套筒是仅暴露于流动液体的唯一移动部件，液体压力和流动力仅在径向上作用在可轴向滑动的套筒上，使得液压力不影响打开和关闭阀门所需的驱动力。

公开(公告)号：US06648001B2

公开(公告)日：2003-11-18

申请号：US09994530

申请日：2001-11-27

申请人： Vijay R. Chatufale

发明人： Vijay R. Chatufale

IPC分类号： F16K326

CPC分类号： F16K5/0471 ,  F16K5/188 ,  Y10T137/0491 ,  Y10T137/0508

摘要： A rotary plug valve is disclosed in a preferred embodiment that has two telescoping seat assemblies that fit into respective recesses provided in the valve body surrounding a passageway through the plug valve. A valve chamber is formed in the valve body into which the rotary plug may be positioned to control flow through the valve by rotation thereof. In a preferred embodiment, the telescoping seat assemblies provide an upstream and a downstream seal with the rotary plug. The telescoping seat assemblies preferably function differently when in the open and closed position so that both assemblies expand when in the open position whereas in the closed position one assembly expands and one is compressed A line pressure surface is provided to provide a force against the plug seal seat element. The plug seal seat element and plug mate with a curved surface and the contact stress varies depending on the location along the curved surface. The line pressure surface is made large enough so that a sufficient portion of the mating surface has a contact stress greater than line pressure so as to form a fluid tight, e.g., gas tight, seal. In one preferred embodiment, the line pressure surface is made large enough so that the average contact stress is greater than line pressure. In another embodiment, the seals are comprised of a non-permeable material that is sufficiently flexible to conform to sealing surfaces.

公开(公告)号：US06796546B2

公开(公告)日：2004-09-28

申请号：US10187273

申请日：2002-06-26

申请人： Kevin R. Wayman ,  Drew A. Crafton ,  Joel E. Mowatt

发明人： Kevin R. Wayman ,  Drew A. Crafton ,  Joel E. Mowatt

IPC分类号： F16K326

CPC分类号： F16K11/07

摘要： A valve assembly has a valve body with a bore formed therein. A valve spool is slidably disposed in the valve body. The valve spool has a plurality of valve lands that closely engage the valve bore to form substantially leak-free interfaces. The leading land has a diameter less than the land immediately adjacent thereto in a range of 0.34 mm to 0.17 mm, and a recess formed between the leading land and the first adjacent land. The recess has an inner diameter at least 0.75 mm less than said diameter of said leading land.

摘要翻译： 阀组件具有其中形成有孔的阀体。 阀芯可滑动地设置在阀体中。 阀芯具有多个阀座，其紧密地接合阀孔以形成基本上无泄漏的接口。 前缘土地的直径小于其邻近的土地的直径在0.34mm至0.17mm的范围内，并且形成在引导陆地和第一相邻地面之间的凹部。 所述凹部具有比所述引导区域的所述直径小至少0.75mm的内径。

公开(公告)号：US06357481B2

公开(公告)日：2002-03-19

申请号：US09921812

申请日：2001-08-03

申请人： James O. Schagunn

发明人： James O. Schagunn

IPC分类号： F16K326

CPC分类号： F28F25/02 ,  F16K5/163 ,  F28F27/003 ,  F28F27/02 ,  Y10S165/90 ,  Y10T137/6416 ,  Y10T137/87877

摘要： A lightweight flow control valve for use in cooling towers is provided. The valve includes a lightweight, thin-walled valve body having a flow bore, an inlet port, and an outlet port. The outlet port is disposed in a substantially perpendicular relationship relative to the inlet port. The valve body has a substantially frusto-conically shaped interior surface defining the flow bore. A lightweight, thin-walled barrel having an inlet, an outlet, and a fluid passageway extending between the inlet and the outlet is disposed within the flow bore of the valve body. The inlet of the barrel is concentrically positioned relative to the inlet port of the valve body and the outlet of the barrel is disposed in a substantially perpendicular relationship relative to the inlet of the barrel. The barrel has a substantially frusto-conically shaped exterior surface sealingly engageable against the frusto-conically shaped interior surface of the valve body to provide a substantially fluid-tight seal when the barrel is in a closed position wherein the outlet of the barrel is aligned with the interior surface of the valve body. The barrel is disposed in the internal cavity of the valve body so as to be axially movable to a non-sealing position relative to the valve body to permit the barrel to be rotated to an open position wherein at least a portion of the outlet of the barrel is in open communication with the outlet port of the valve body.

摘要翻译： 提供了一种用于冷却塔的轻型流量控制阀。 该阀包括具有流动孔，入口和出口的轻质薄壁阀体。 出口端口相对于入口端口大致垂直地设置。 阀体具有限定流动孔的基本截头圆锥形的内表面。 具有入口，出口和在入口和出口之间延伸的流体通道的轻质薄壁桶设置在阀体的流动孔内。 筒的入口相对于阀体的入口同心地定位，并且筒的出口相对于筒的入口以基本垂直的关系设置。 枪管具有基本上截头圆锥形的外表面，密封地可接合于阀体的截头圆锥形内表面，以在枪管处于关闭位置时提供基本上不流体密封的密封，其中枪管的出口与 阀体的内表面。 筒体设置在阀体的内腔中，以便相对于阀体可轴向移动到非密封位置，以允许筒旋转到打开位置，其中至少一部分出口 桶与阀体的出口开口连通。

公开(公告)号：US06296009B1

公开(公告)日：2001-10-02

申请号：US09627570

申请日：2000-07-28

申请人： Thomas A. Hartman ,  Brian T. Hartman

发明人： Thomas A. Hartman ,  Brian T. Hartman

IPC分类号： F16K326

CPC分类号： F16K1/123 ,  Y10T137/3367

摘要： An arm-driven sleeve valve utilizes a single pin connection to transmit torque from a shaft of the sleeve valve to a pair of arm portions suspended therefrom for controlling the flow of fluid from the valve by axially moving a gate. The single pin connection is centrally positioned between the arm portions and ensures the each of the arm portions exerts an equal force on the gate, regardless of torsional deflection of the shaft. Use of the invention allows arm-driven sleeve valves to be driven asymmetrically from only one of opposite axial ends of the shaft without tending to bind the gate against the main body of the valve.

摘要翻译： 臂驱动套筒阀利用单个销连接将扭矩从套筒阀的轴传递到悬挂在其上的一对臂部，用于通过轴向移动闸门来控制来自阀的流体的流动。 单引脚连接中心地位于臂部之间，并且确保每个臂部分在门上施加相等的力，而不管轴的扭转偏转。 使用本发明允许臂驱动套筒阀从轴的相对轴向端部中的一个不对称地驱动，而不倾向于将门抵靠阀的主体。