公开(公告)号：US20220057014A1

公开(公告)日：2022-02-24

申请号：US17275854

申请日：2019-10-22

申请人： Pietro Fiorentini S.P.A.

发明人： Alberto Arsego ,  Michele Bernardi ,  Alessandro Bonamico

IPC分类号： F16K31/38 ,  G05D16/06 ,  F16K31/126

摘要： A pressure regulator for gas distribution systems includes: a connection body for connection between an upstream pipe and a downstream pipe, the following elements being defined inside the connection body: an inlet duct an outlet duct, a high-pressure chamber connected to the inlet duct, a low-pressure chamber connected to the outlet duct, a passage opening between the high-pressure chamber and the low-pressure chamber, a movable shutter designed to obstruct the passage opening, components for moving the movable shutter in a controlled manner. The components for moving the movable shutter in a controlled manner include: a first main control head fixed to the connection body and configured to operate the movable shutter through a first control rod, a second auxiliary control head configured to operate the movable shutter through a second control rod fixed to the same movable shutter.

公开(公告)号：US08047226B2

公开(公告)日：2011-11-01

申请号：US12141532

申请日：2008-06-18

申请人： Ed Kesner ,  Larry Robert Casillas ,  Javier Gutierrez

发明人： Ed Kesner ,  Larry Robert Casillas ,  Javier Gutierrez

IPC分类号： F16K31/38

CPC分类号： F16K17/06 ,  F01D17/145 ,  Y10T137/7764 ,  Y10T137/777 ,  Y10T137/7781 ,  Y10T137/86936

摘要： A pressure relief valve includes a lever plate, a first spring, a fitting, and a guide assembly. The fitting has a first side, a second side, and a flange having a rounded end and includes a surface with which a first end of the first spring contacts. The guide assembly has two sides, two concavities, and at least a portion of the guide assembly extends through the opening of the lever plate, the first concavity is formed on the first side of the guide assembly and contacts the fitting flange rounded end, and the second concavity is aligned coaxially with the first concavity. A rounded end of a rod of the diaphragm assembly contacts the second concavity. The second spring is adapted to supply a second force against the diaphragm assembly to move the lever plate in a second direction that is substantially opposite the first direction.

摘要翻译： 减压阀包括杠杆板，第一弹簧，配件和引导组件。 配件具有第一侧面，第二侧面和具有圆形端部的凸缘，并且包括与第一弹簧的第一端接触的表面。 引导组件具有两个侧面，两个凹部，并且引导组件的至少一部分延伸穿过杠杆板的开口，第一凹部形成在引导组件的第一侧上，并与接合凸缘圆形端接触，并且 第二凹部与第一凹部同轴地对准。 隔膜组件的杆的圆形端部接触第二凹部。 第二弹簧适于向隔膜组件提供第二力，以沿与第一方向基本相反的第二方向移动杠杆板。

公开(公告)号：US4718450A

公开(公告)日：1988-01-12

申请号：US61845

申请日：1987-06-11

申请人： L. Ike Ezekoye

发明人： L. Ike Ezekoye

IPC分类号： F16K17/04 ,  F16K47/08 ,  F16K31/38

CPC分类号： F16K17/0433 ,  F16K47/08 ,  Y10T137/7738 ,  Y10T137/7781 ,  Y10T137/7925 ,  Y10T137/7932

摘要： A valve head of the pressure relief valve is urged into the closed (seated) position by a spring, assisted by a force derived from pressurized fluid which is situated in a chamber behind the valve head and which is admitted thereto from the upstream side of the valve seat through a chamber in the valve head. The chamber in the valve head is open toward the inlet port of the valve and is partly defined and surrounded by a skirt-like extension oriented transversely to the axis of the valve inlet port. The diameter of the chamber whose opening has a plane generally perpendicular to the direction of valve head motion, is at least as large as the diameter of the valve intake port. In the seated (closed) state the skirt-like extension reaches transversely into the inlet port at least as far as the axis of the inlet port and in the maximum open position the skirt-like extension is at the most just clear of the inlet port.

摘要翻译： 压力释放阀的阀头通过弹簧被推入关闭（就座）位置，由来自加压流体的力辅助，加压流体位于阀头后面的腔室中，并且从压力流体的上游侧进入 阀座通过阀头中的腔室。 阀头中的腔室朝向阀的入口开口，并且部分地限定并且被横向于阀入口的轴线定向的裙状延伸部围绕。 开口具有大致垂直于阀头运动方向的平面的腔的直径至少与阀进气口的直径一样大。 在座位（闭合）状态下，裙状延伸部至少与入口轴线的入口横向进入入口端口，并且在最大打开位置，裙状延伸部最靠近入口端口 。

公开(公告)号：US4332368A

公开(公告)日：1982-06-01

申请号：US935352

申请日：1978-08-21

申请人： Orest Woloszczuk

发明人： Orest Woloszczuk

IPC分类号： F16K31/12 ,  A62C35/02 ,  F16K31/38 ,  F16K31/40 ,  F16K31/02

CPC分类号： F16K31/38 ,  A62C35/02 ,  F16K31/406 ,  Y10T137/7847

摘要： Fast-acting valve structure for rapidly evacuating a container of fire retardant material or the like comprising a pilot valve including an annular radially movable, self-centering valve seat, means for actuating the pilot valve either automatically or manually, a poppet valve, structure operably associated with the poppet valve to cause the poppet valve to be biased closed when the poppet valve is in a closed position without mechanical biasing structure, and operable to cause immediate opening of the poppet valve on initial opening of the pilot valve to permit rapid discharge of the container into a discharge manifold through structure for securing the valve structure to the container, and a resiliently mounted and sealed sleeve for guiding the poppet valve between open and closed position.

摘要翻译： 用于快速排空阻燃材料等的容器的快动阀结构，包括包括环形可径向移动的自定心阀座的先导阀，用于自动或手动地驱动先导阀的装置，可操作地提升阀 与提升阀相关联以在提升阀处于没有机械偏置结构的关闭位置时使提升阀偏置关闭，并且可操作以在先导阀初次打开时立即打开提升阀，以允许快速排出 所述容器成为用于将所述阀结构固定到所述容器上的用于将所述阀结构固定到所述排出歧管通道的结构，以及弹性安装和密封的套筒，用于在所述提升阀在打开和关闭位置之间引导。

公开(公告)号：US4066102A

公开(公告)日：1978-01-03

申请号：US676736

申请日：1976-04-14

申请人： Niels Tandrup

发明人： Niels Tandrup

IPC分类号： F16K11/07 ,  F15B13/04 ,  F15B13/043 ,  F16K31/38 ,  F16K31/363 ,  F16K31/40

CPC分类号： F15B13/0435 ,  F15B13/0402 ,  F15B13/0407 ,  Y10T137/86614

摘要： The invention relates to a hydraulic regulator of a type which may be operated by electromagnetic switching valves. The assembly includes a piston and cylinder arrangement with position setting chambers at opposite ends thereof of larger diameter than the servo piston. Movable abutment elements in the chambers of larger diameter than the servo piston are biased by centering springs. There are parallel circuit branches in which the end chambers are disposed and switching valves are in these branches. The actuating of one of the valves to block its branch raises the pressure in the end chamber in that branch causing the piston to move in the other direction so as to move away from the biasing force of one spring biased element and engage the biasing force of the other spring biased element. When the other switching valve is actuated to block its branch to stop the piston in a desired position, the fluid pressure in the end chambers is equal. The sring bias acting through one of the abutment elements creates unequal biasing forces on the servo piston in the direction from which it started.

摘要翻译： 本发明涉及一种可由电磁切换阀操作的液压调节器。 组件包括活塞和气缸装置，其位置设定室的相对端部的直径大于伺服活塞的直径。 在直径大于伺服活塞的腔室中的可移动邻接元件被定心弹簧偏压。 有并联电路分支，其中末端室被设置并且切换阀位于这些分支中。 一个阀的致动阻止其分支引起该分支中的端室中的压力，使得活塞沿另一方向移动，以便远离一个弹簧偏压元件的偏置力，并且接合 另一个弹簧偏置元件。 当另一个切换阀被致动以阻挡其分支以将活塞停止在期望的位置时，终端腔室中的流体压力相等。 通过一个邻接元件作用的旋转偏压在伺服活塞开始的方向上产生不相等的偏压力。

公开(公告)号：US4041978A

公开(公告)日：1977-08-16

申请号：US648717

申请日：1976-01-13

申请人： Karl Leemann

发明人： Karl Leemann

IPC分类号： B63C11/22 ,  G05D16/06 ,  F16K31/38

CPC分类号： B63C11/2236 ,  G05D16/0677 ,  Y10T137/7781

摘要： A pressure regulator for divers' breathing apparatus having a diaphragm case and a diaphragm disposed therein. As a function of the pressure which exists in a space delimited by the diaphragm and which is varied by the diver's breathing, the diaphragm controls, via a control member, a valve having a fixed portion and a movable portion. A pressure chamber is provided in which a reduction in pressure is produced through a channel opening out into the flow of gaseous mixture into the valve at right angles to the direction of that flow. The opening of the valve is assisted and accelerated by this reduction in pressure in order to facilitate the diver's breathing.

摘要翻译： 一种用于潜水呼吸器的压力调节器，其具有隔膜壳体和设置在其中的隔膜。 作为存在于由隔膜限定并由潜水员的呼吸变化的空间中的压力的​​函数，隔膜通过控制构件控制具有固定部分和可动部分的阀。 提供了一个压力室，其中压力的产生通过与气流方向成直角的气体混合物流入阀的通道产生。 通过这种减压来辅助和加速阀的打开，以便于潜水员的呼吸。

公开(公告)号：US3896840A

公开(公告)日：1975-07-29

申请号：US46584474

申请日：1974-05-01

申请人： ANDERSSON SVEN E

发明人： ANDERSSON SVEN E

IPC分类号： F16K31/38 ,  F16K1/12 ,  F16K31/42

CPC分类号： F16K31/42 ,  F16K1/126 ,  Y10T137/3367 ,  Y10T137/86686

摘要： A pilot valve controlled fluid pressure actuated flow control valve is disclosed which includes a plunger in the flow passageway through the main valve. One end of the plunger defines a piston which is disposed in a piston chamber, and the other end of the plunger defines a valve element displacable into and out of engagement with a valve seat in the passageway. A pilot valve controls the flow of upstream fluid into and from the piston chamber to respectively close and open the main valve passageway. The pilot valve includes a pair of valve elements reciprocable together between first and second positions. In the first position, one of the valve elements closes the passage for delivery of upstream fluid to the piston chamber and the other valve opens a passageway to release upstream fluid from the piston chamber. In the second position, the one valve element opens the passageway for directing upstream fluid to the piston chamber and the other closes the passageway for release of upstream fluid from the piston chamber. Each of the pilot valve elements is biased in its closed position by the pressure of upstream fluid acting thereagainst.

摘要翻译： 公开了一种先导阀控制流体压力致动流量控制阀，其包括通过主阀的流动通道中的柱塞。 柱塞的一端限定了设置在活塞室中的活塞，并且柱塞的另一端限定了可移动地进入和离开通道中的阀座的阀元件的阀元件。 先导阀控制进入活塞室和从活塞室流出的上游流体，以分别关闭和打开主阀通道。 先导阀包括一对可在第一和第二位置之间往复运动的阀元件。 在第一位置中，一个阀元件关闭用于将上游流体输送到活塞室的通道，另一个阀打开通道以从活塞室释放上游流体。 在第二位置，一个阀元件打开用于将上游流体引导到活塞室的通道，而另一个阀元件封闭通道以从活塞室释放上游流体。 每个先导阀元件通过在其上作用的上游流体的压力而偏置在其关闭位置。

公开(公告)号：US3820754A

公开(公告)日：1974-06-28

申请号：US28134872

申请日：1972-08-17

申请人： WATER CONTROL PRODUCTS

发明人： CARON R ,  HOWARD T

IPC分类号： E03D3/10 ,  F16K31/38 ,  E03D3/02 ,  F16K21/18

CPC分类号： E03D3/10

摘要： A valve, plug and pressure responsive diaphragm combination for use in a flushing device of the type which includes a closed container for receiving and retaining a quantity of pressurized water. The plug is capable of being seated within the outlet of the tank and has an aperture therein into which the valve is slidably received. The valve is attached to a stem which is constantly urged upwardly by the action of a spring. The valve is pushed downward from a seated position in the plug against the action of the spring when the tank is flushed. This downward movement of the valve opens the aperture in the plug in which the valve was seated which decreases the pressure within the cylinder above the plug and causes the plug to move upwardly from its seated position in the tank outlet thus opening the outlet for the passage of water from the tank during the flushing cycle. As the tank empties, the plug drops. To reseal the bowl after the tank has been flushed, the spring action of the valve tends to prevent the plug from seating thus allowing some liquid to flow through the outlet as the tank is being filled. After the tank has been flushed and while the bowl is being resealed, the plug responds to pressure created by liquid coming into the tank by moving slowly in opposition to the force of the spring and valve until the plug is seated and the tank is resealed.

公开(公告)号：US3581760A

公开(公告)日：1971-06-01

申请号：US3581760D

申请日：1969-02-14

申请人： BENJAMIN W WEST

发明人： WEST BENJAMIN W

IPC分类号： F16K31/38 ,  G05D16/10 ,  G05D7/01

CPC分类号： F16K31/38 ,  G05D16/10 ,  Y10T137/2605

摘要： A valve is described for venting a first pressure region upon the occurrence of a drop in pressure in a second pressure region. Also described is a pneumatic sensing circuit using such a valve. The valve includes a housing defining a valve chamber in which a movable closure member operates to open and close a vent passage for the first pressure region. Upon a drop in pressure of the given magnitude in the second pressure region, the closure means moves to a position wherein the vent passage is opened to relieve pressure, in the first pressure region.

公开(公告)号：US3570529A

公开(公告)日：1971-03-16

申请号：US3570529D

申请日：1969-10-13

申请人： GEN SIGNAL CORP

发明人： PICKERT LYNN I

IPC分类号： B60T15/42 ,  F16K31/38

CPC分类号： B60T15/42 ,  Y10T137/7781

摘要： A vent valve to provide a local vent from the brake pipe of an automatic air brake system in response to an emergency rate of reduction of brake pipe pressure. The valve is of the poppet type and the valve head is carried by a pivoted actuating lever. The valve head is pivotally connected to the lever and has a pivot axis parallel with the pivot axis of the actuating lever and which is offset from the centerline of the valve seat toward the lever pivot. This location of the valve head pivot affords quick valve opening and good mechanical advantage. The vent valve is spring-biased closed and is opened by a motor which is rendered effective only by a rapid reduction of brake pipe pressure such as is characteristic of an emergency brake application.