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    • 12. 发明授权
    • Drilling choke valve
    • 钻ke阀
    • US4531545A
    • 1985-07-30
    • US481739
    • 1983-04-04
    • John D. Muchow
    • John D. Muchow
    • E21B21/10E21B34/02F16K3/26F16K25/04F16K47/04
    • F16K25/04E21B21/106E21B34/02F16K3/26F16K47/04Y10T137/86807
    • A multiposition choke valve assembly comprises:(a) a valve body defining an interior chamber and inlet and outlet flow ports communicable with that chamber,(b) a valve stopper sub-assembly movable axially longitudinally in the chamber, the sub-assembly including an axially extending stem, an axially extending sleeve, an annular section located between the stem and sleeve, and an annular seal on the annular section and exposed at the section periphery,(c) the sleeve forming multiple through openings and having a retracted position in which the flow passes with relatively lesser velocity past the seal and then forwardly to pass via such openings with relatively increased velocity into the sleeve, followed by generally axially forward flow toward the outlet flow port,(d) the sleeve having an advanced position in which the seal is radially compressed to engage a body bore, and the flow through the sleeve openings is blocked.
    • 多重阻塞阀组件包括:(a)阀体,其限定内室,以及可与该室连通的入口和出口流动端口,(b)在腔室中轴向纵向移动的阀止动器子组件,子组件包括 轴向延伸的杆,轴向延伸的套筒,位于杆和套筒之间的环形部分,以及在环形部分上的环形密封件,并在部分周边暴露,(c)套筒形成多个通过的开口并具有缩回位置, 流动以相对较小的速度通过密封件,然后向前通过这样的开口以相对增加的速度通过到套筒中,随后大致轴向向前流向出口流动口,(d)套筒具有前进位置, 密封件被径向压缩以接合主体孔,并且通过套筒开口的流动被阻挡。
    • 14. 发明授权
    • Valve actuator having a rotary bi-directional apparatus with a dual
ratchet mechanism
    • 阀致动器具有带双棘轮机构的旋转双向装置
    • US4180238A
    • 1979-12-25
    • US935767
    • 1978-08-22
    • John D. Muchow
    • John D. Muchow
    • F16D19/00F16D21/04F16D43/02F16K31/16F16K31/52
    • F16D19/00F16D21/04F16D43/02F16K31/16Y10T74/1529Y10T74/2141
    • The present invention is a bi-directional valve actuator with a ratchet mechanism for use in combination with a control valve which includes a stem which, when turned, adjusts the flow through the control valve. The bi-directional valve actuator includes a frame which is mechanically coupled to the control valve adjacent to the other end of the stem of the control valve. The valve actuator also includes a shaft which is disposed within the frame and which is rotatably coupled thereto with the shaft being mechanically coupled to the stem of the control valve so it can turn the stem thereof, a first ratchet wheel and a second ratchet wheel. Each ratchet wheel is coaxially aligned with the shaft and is fixedly coupled thereto. The valve actuator further includes a pair of pawls, each of which is coupled to one of the ratchet wheels so that when the pawl is driven forward it becomes coupled to the teeth of one of the ratchet wheels and when the pawl is pulled backward it becomes uncoupled from the teeth of one of the ratchet wheels. Each pawl is mechanically coupled to and driven forward by a hydraulic cylinder with a piston, which is fixedly coupled to the pawl and it is also mechanically coupled to and driven backward by a pair of springs mechanically coupled to the frame. The pawl is coupled to the wheel of the ratchet wheel by a collar which is disposed about the peripheral edge of the ratchet wheel and which has a slot and a radially disposed hole with a pin and spring assembly therein. The pin and spring assembly is mechanically coupled to the pawl by a pin.
    • 本发明是一种具有棘轮机构的双向阀致动器,该棘轮机构与控制阀组合使用,所述控制阀包括杆,所述杆在转动时调节通过所述控制阀的流量。 双向阀致动器包括机架地连接到与控制阀的杆的另一端相邻的控制阀的框架。 阀致动器还包括设置在框架内并且可旋转地联接到其上的轴,其轴与机械地联接到控制阀的杆,使得其可以转动其杆,第一棘轮和第二棘轮。 每个棘轮与轴同轴对准并且固定地联接到其上。 阀致动器还包括一对棘爪,每个棘爪联接到棘轮中的一个,使得当棘爪向前驱动时,其啮合到棘轮之一的齿上,并且当棘爪向后拉时, 与棘轮之一的齿脱离。 每个棘爪机械地联接到液压缸并通过活塞向前驱动,该活塞固定地联接到棘爪上,并且还通过机械地联接到框架的一对弹簧机械地联接到后部并由其驱动。 棘爪通过围绕棘轮的周缘设置的轴环联接到棘轮的轮上,该轴环具有狭槽和径向设置的孔,其中销和弹簧组件在其中。 销和弹簧组件通过销机械连接到棘爪。
    • 15. 发明授权
    • Automatic reset pilot valve
    • 自动复位先导阀
    • US4116215A
    • 1978-09-26
    • US772906
    • 1977-02-28
    • John D. Muchow
    • John D. Muchow
    • F16K17/34G05D16/10G05D16/18F16K11/10
    • G05D16/10Y10T137/7725Y10T137/87225Y10T137/87233
    • The valve spool of a three-way pilot valve responds to changes in pressure in a pipeline downstream from a shut-off valve that is biased to close by spring pressure and has a control cylinder to admit pressurized control fluid to open in opposition to the spring pressure. When the pipeline pressure is in the normal range the valve spool is at a normal position where it places the pressurized control fluid in communication with the control cylinder of the shut-off valve to keep the shut-off valve open. When the pipeline pressure drops below the normal range the valve spool moves in one direction from its normal position to a first alternate position to cause the shut-off valve to close and when the pipeline pressure rises above the normal range the valve spool moves in the opposite direction to a second alternate position to cause the shut-off valve to close. At each of the two alternate positions of the valve spool, it cuts off the source of pressurized fluid and at the same time vents the control cylinder of the shut-off valve to close the shut-off valve. When the pipeline pressure returns to the normal pressure range, the valve spool returns automatically to its normal position to open the shut-off valve.
    • 三通先导阀的阀芯响应于由截止阀下游的管道中的压力变化,偏压被弹簧压力关闭,并且具有控制缸以允许加压控制流体与弹簧相对地打开 压力。 当管道压力在正常范围内时,阀芯处于正常位置,在该正常位置,加压控制流体与截止阀的控制缸连通,以保持截止阀打开。 当管道压力下降到正常范围以下时,阀芯从一个方向从正常位置移动到第一交替位置,以使关闭阀关闭,当管道压力升高到正常范围以上时,阀芯在 与第二交替位置相反的方向,以使截止阀关闭。 在阀芯的两个交替位置的每一个处,它切断加压流体源,并同时通向截止阀的控制缸以关闭截止阀。 当管道压力恢复到正常压力范围时,阀芯自动返回到其正常位置以打开截止阀。
    • 16. 发明授权
    • Device and method for launching and/or retrieving pipeline scrapers
    • 用于启动和/或检索管道刮板的装置和方法
    • US4016621A
    • 1977-04-12
    • US584375
    • 1975-06-06
    • Maurice SlegersJohn D. Muchow
    • Maurice SlegersJohn D. Muchow
    • B08B9/053F16L55/46B08B9/04
    • F16L55/46B08B9/00F16K1/00Y10T137/4891
    • A housing structure confines a ball-shaped valve member with a flow passage therethrough. One end of the flow passage serves as a cavity to receive a pipeline scraper in the form of a pig ball and a grid retains the pig ball while permitting fluid flow through the passage. The valve ball cavity may register with the chamber of a normally closed magazine to receive a pig ball therefrom or to release a pig ball thereto. The valve ball cavity may also register with one of the two ports of the housing structure to launch or retrieve a pig ball therethrough. The valve ball is completely enclosed by the housing structure with a seal at the entrance to the magazine. The magazine has a bleeder valve to the atmosphere and also has a by-pass valve to equalize the fluid pressure in the magazine with the fluid pressure in the pipeline. The valve ball has compensating freedom to move towards and away from the seal. Manually operable gearing rotates the valve ball 90.degree. between its two alternate positions.
    • 壳体结构将球形阀构件与通过其的流动通道相结合。 流动通道的一端用作腔体以接收猪球形式的管线刮板,并且格栅保持猪球,同时允许流体流过通道。 阀球腔可以与常闭刀库的腔室对准,以从其中接收猪球或将猪球释放到其上。 阀球腔也可以与壳体结构的两个端口之一配准,以便通过其中的一个或多个猪球来启动或取回。 阀球完全由壳体结构封闭,并在杂志入口处具有密封。 该杂志具有到大气的泄放阀,并且还具有旁通阀,以使管道中的流体压力与料仓中的流体压力相等。 阀球具有朝向和远离密封件移动的补偿自由度。 手动可操作的传动装置将阀球在其两个替代位置之间旋转90°。
    • 17. 发明授权
    • Safety shut-off valve
    • 安全截止阀
    • US3958592A
    • 1976-05-25
    • US440125
    • 1974-02-06
    • Richard E. WellsVictor E. DervalJohn D. Muchow
    • Richard E. WellsVictor E. DervalJohn D. Muchow
    • F16K3/02F16K17/38F16K31/122F16K41/02F16K41/04F01B31/00F16K41/14
    • F16K17/383F16K3/0254F16K31/1221F16K41/02Y10S277/933Y10T137/1834Y10T137/4238Y10T137/4442Y10T137/5109Y10T137/599Y10T137/6075
    • Pressurized fluid is controlled by a reverse valve gate on a valve stem that extends through annular packing in a bore of a bonnet to a piston in an outer control chamber. Control fluid pressure moves the piston inward to open the valve against line pressure on the valve and/or spring pressure on the valve. In the absence of both line pressure and control pressure, the valve is closed by spring pressure. The control chamber construction permits quick replacement of control chamber seals. In the event of a fire, the control chamber seals disintegrate to release the control pressure and thus cause line pressure and/or spring pressure to close the valve. The valve stem packing may be conveniently expelled hydraulically for replacement. Various different control assemblies may be mounted interchangeably on the valve bonnet without disturbing the structure of the valve. An auxiliary control may be quickly mounted on the outer end of the control chamber to convert the shut-off valve to manual operation.
    • 加压流体由阀杆上的反向阀门控制,该阀杆延伸穿过发动机盖的孔中的环形密封件到外部控制室中的活塞。 控制流体压力将活塞向内移动以打开阀门,抵抗阀上的管路压力和/或阀门上的弹簧压力。 在没有管路压力和控制压力的情况下,阀门被弹簧压力关闭。 控制室结构允许快速更换控制室密封。 在发生火灾时,控制室密封分解以释放控制压力,从而导致管路压力和/或弹簧压力关闭阀门。 阀杆包装可以方便地液压地排出以进行更换。 各种不同的控制组件可以可互换地安装在阀帽上,而不会妨碍阀的结构。 辅助控制器可以快速地安装在控制室的外端上,以将截止阀转换成手动操作。