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公开(公告)号：US4319604A
公开(公告)日：1982-03-16
申请号：US122136
申请日：1980-02-19
申请人： Robert E. Bird
发明人： Robert E. Bird
CPC分类号： F16K17/00 , F16K17/30 , Y10T137/7727 , Y10T137/7785 , Y10T137/7792
摘要： In a safety shut-off valve, a housing includes a valve member therein, having a first valve seat, and against which a valve normally rests during closure, with a spring normally biasing said valve off of said first valve seat, and with the force of the pressurized fluid passing through the valve causing said valve to act against the force of a regulator and a second spring to become unseated for allowing gas flow, and reseated once again against a second valve seat when excessive pressure is encountered and which curtails the further flow of fluid through the valve housing, and thereby shutting off the fluid from its source.
摘要翻译： 在安全截止阀中，壳体包括其中的阀构件，其具有第一阀座，并且阀在关闭期间通常静止，弹簧通常使所述阀偏离所述第一阀座，并且利用力 通过阀门的加压流体导致所述阀抵抗调节器和第二弹簧的作用力而变得不合适以允许气体流动，并且当遇到过大的压力时再次抵抗第二阀座，并且进一步压缩 流体流过阀壳体，从而将流体从其源头关闭。
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公开(公告)号：US4309021A
公开(公告)日：1982-01-05
申请号：US21060
申请日：1979-03-16
申请人： Carl H. Hafele
发明人： Carl H. Hafele
IPC分类号： F16K17/30 , F16K31/122 , F16K31/363
CPC分类号： F16K31/1221
摘要： A valve of the type which is actuated under the pressure of the medium it controls and in which axially-aligned actuating and damping pistons are disposed within cylindrical relief and damping chambers and are connected to a valve element engageable with a valve seat disposed between inlet and outlet valve ports. The actuating piston acts under the pressure of the medium it controls to actuate the valve element in response to a reduction in pressure in the relief chamber. The invention itself resides in the provision of a restricted passageway which interconnects the relief and damping chambers whereby the pressure in the damping chamber will be reduced slowly in response to a reduction in pressure in the relief chamber whereby, if the valve should stick or otherwise become slow-acting, the pressure within the damping chamber will assist and insure that the valve is actuated even though it may not be in the best operating condition.
摘要翻译： 在其控制的介质的压力下被致动的类型的阀，并且其中轴向对齐的致动和阻尼活塞设置在圆柱形释放和阻尼室内并连接到阀元件，阀元件可与设置在入口和 出口阀口。 致动活塞在其控制的介质的压力下起作用以响应于减压室中的压力的减小来致动阀元件。 本发明本身在于提供了一个限制通道，其将减压室和减震室相互连接，由此响应于减压室中的压力降低缓慢室中的压力将被缓慢地减小，由此，如果阀应该粘住或以其他方式成为 缓慢作用，阻尼室内的压力将有助于并确保阀被致动，即使其可能不处于最佳操作状态。
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公开(公告)号：US4263933A
公开(公告)日：1981-04-28
申请号：US037959
申请日：1979-05-09
申请人： David F. Taylor
发明人： David F. Taylor
CPC分类号： F16K17/36 , Y10T137/2617 , Y10T137/7785
摘要： In a preferred embodiment of the invention, an accessory safety valve is provided for mounting within outlet-ports of tanks designed to contain pressurized gas of some sort, particularly of an explosive or caustic nature, to replace the conventional outlet conduit normally mounted in such tanks which normally have the on-off valve exterior to the tank devoid of any safety back-up feature, the present accessory safety valve having the pressure-responsive safety mechanism mounted within the end of the conduit passage that extends totally inside the tank totally beyond exterior-mounting male thread to the conduit, placing the valve and valve set therefor thereby in a removed position protected against damage and failure in the event of an exterior-tank blow or impact against portions of the conduit mounted exterior to the tank.
摘要翻译： 在本发明的优选实施例中，提供附件安全阀，用于安装在设计成容纳某种类型的加压气体，特别是爆炸性或苛性质的罐的出口端口中，以替代通常安装在这种罐中的常规出口导管 其通常具有在没有任何安全备用特征的罐外部的开关阀，本配件安全阀具有安装在管道通道的端部内的压力响应安全机构，其完全在箱体内部完全延伸到外部 将外螺纹安装到管道上，将阀和阀组置于其中，从而在外部罐冲击或撞击安装在罐外部的导管的部分的情况下防止损坏和故障的去除位置。
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公开(公告)号：US4195664A
公开(公告)日：1980-04-01
申请号：US872285
申请日：1978-01-25
申请人： Jack C. Bullock , Benjamin E. Kelly
发明人： Jack C. Bullock , Benjamin E. Kelly
IPC分类号： F16K17/30
CPC分类号： F16K17/30 , Y10T137/7848 , Y10T137/7869 , Y10T137/87917
摘要： A valve having a mechanism for damping out flow surges in a vacuum system which utilizes a slotted spring-loaded disk positioned adjacent the valve's vacuum port. Under flow surge conditions, the differential pressure forces the disk into sealing engagement with the vacuum port, thereby restricting the flow path to the slots in the disk damping out the flow surge.
摘要翻译： 一种具有用于阻止真空系统中的流动浪涌的机构的阀，其利用与阀的真空端口相邻定位的带槽弹簧加载的盘。 在流动浪涌条件下，差压迫使盘与真空口密封接合，从而限制盘中的槽的流动路径阻止流动浪涌。
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公开(公告)号：US4097184A
公开(公告)日：1978-06-27
申请号：US702984
申请日：1976-07-06
IPC分类号： B25B21/00 , F01B25/16 , F16D43/286 , F16K17/00 , F16K17/10 , F16K17/30 , F16K21/04 , F01D17/00 , F16K31/12 , G05D16/10
CPC分类号： F01B25/16 , F16D43/286 , F16K17/00 , Y10T137/7733
摘要： A pressure operated shut-off valve for controlling a pneumatic circuit for instance a supply passage of a pneumatic tool, in response to the motive air supply pressure. The valve comprises a valve body that is continuously biased in its closing direction by a spring means and in its opening diection by the motive air supply pressure. If the air pressure drops below a predetermined minimum value the valve is automatically shifted to a closed position by the load of the spring means. A valve body controlled passage means supplies pressure air to the rear end of the valve body as the latter occupies its closed position, thereby making the closed position stable.
摘要翻译： 一种用于响应于动力空气供应压力来控制气动回路（例如气动工具的供应通道）的压力操作截止阀。 该阀包括阀体，该阀体通过弹簧装置在其关闭方向上被连续地偏压，并且在其通过动力空气供应压力的开口中。 如果空气压力下降到预定的最小值以下，则通过弹簧装置的负载自动地将阀门移动到关闭位置。 阀体控制通道装置在阀体处于其关闭位置时向阀体的后端供应压力空气，从而使闭合位置稳定。
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公开(公告)号：US4000754A
公开(公告)日：1977-01-04
申请号：US463933
申请日：1974-06-11
申请人： Daniel W. Risk
发明人： Daniel W. Risk
CPC分类号： G05D16/166 , Y10T137/776 , Y10T137/7764 , Y10T137/777
摘要： An automatic control valve is provided for a fluid system where the valve can be adjusted to an equilibrium position based upon a selected flow rate through the valve, and further can automatically close the valve when an excessive flow rate occurs.
摘要翻译： 提供了一种用于流体系统的自动控制阀，其中可以基于通过阀的选定流量将阀调节到平衡位置，并且当发生过大的流量时，还可以自动关闭阀。
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公开(公告)号：US3939868A
公开(公告)日：1976-02-24
申请号：US449441
申请日：1974-03-08
CPC分类号： F24F11/047 , G05D7/0173 , Y10T137/784 , Y10T137/7869
摘要： An air volume regulator adapted for use in an air distribution system for maintaining a constant flow of air therethrough regardless of variations in pressure of the air being supplied to the regulator is provided with adjustment means to permit adjusting the regulator for maintaining constant flow at a variety of different flow rates. The regulator includes a housing defining a passageway for the flow of air therethrough, valve means movable within the housing for adjustably restricting the flow of air therethrough, and a coil compression spring cooperating with the valve means for exerting an opening bias thereon in opposition to a closing bias imparted on the valve means by the pressure of the air in the housing. Adjustment means is provided cooperating with the coil spring for immobilizing a selected number of the turns of the coil spring so as to vary the biasing characteristics of the spring and thereby adjust the regulator for maintaining a different flow rate.
摘要翻译： 适于在空气分配系统中使用的空气量调节器设置有用于保持恒定的空气流过其中而不管供应给调节器的空气的压力变化如何，调节装置允许调整调节器以保持恒定流量 的流量不同。 调节器包括限定用于空气流过的通道的壳体，可在壳体内移动的阀装置，用于可调节地限制空气的流动;以及与阀装置配合的线圈压缩弹簧，用于在其上施加与其相对的开口偏压 通过壳体中的空气的压力施加在阀装置上的闭合偏压。 提供与螺旋弹簧配合的调节装置，用于固定螺旋弹簧的选定数量的匝数，以便改变弹簧的偏置特性，从而调整调节器以保持不同的流量。
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公开(公告)号：US3893471A
公开(公告)日：1975-07-08
申请号：US40350973
申请日：1973-10-04
申请人： TOMCO INC
发明人： BYERS JR JAMES OTTO
IPC分类号： F16K17/30 , F15B11/05 , F15B13/043 , F16K11/07
CPC分类号： F15B13/0433 , Y10T137/2554
摘要： A proportional pressure compensating hydraulic control valve having a valve body and a valve spool mounted in the valve body for movement from a neutral or open center position wherein fluid flows through the valve body to an operating position wherein the flow of fluid through the valve is restricted to direct inlet fluid through a flow control orifice to a pressure passage within the valve body, the pressure passage being connected to one of a pair of cylinder passages, the other cylinder passage being connected to a tank passage. The valve spool in an open center mode controlling the flow of fluid to the control orifice and being pressure compensated to maintain a predetermined flow rate through the control orifice, pressure compensation being achieved by imposing inlet and pressure passage pressures selectively to each end of the valve spool so that the valve spool responds to the pressure differential across the control orifice. The valve spool in the closed center mode restricts the fluid flow between the pressure passage and the cylinder passage. The flow rate between the inlet passage network and the pressure passage is controlled either by a low force proportional solenoid valve assembly or a mechanically actuated assembly.
摘要翻译： 比例压力补偿液压控制阀，其具有安装在阀体中的阀体和阀芯，用于从中性或开放中心位置移动，其中流体流过阀体到达操作位置，其中通过阀的流体流被限制 将入口流体通过流量控制孔引导到阀体内的压力通道，压力通道连接到一对气缸通道中的一个，另一个气缸通道连接到油箱通道。 阀芯处于开放的中心模式，用于控制流体流向控制孔并被压力补偿以保持预定流量通过控制孔，压力补偿通过选择性地将入口和压力通道压力施加到阀的每个端部 阀芯使得阀芯对应于控制孔上的压差。 处于闭合中心模式的阀芯限制了压力通道和气缸通道之间的流体流动。 入口通道网络和压力通道之间的流量由低力比例电磁阀组件或机械致动组件控制。
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公开(公告)号：US3734115A
公开(公告)日：1973-05-22
申请号：US3734115D
申请日：1971-04-26
申请人： DOVER CORP
发明人： MC MATH J
CPC分类号： F16K17/383 , F16K15/044 , F16K17/30 , Y10T137/1804 , Y10T137/1819 , Y10T137/7869 , Y10T137/7927
摘要： A biased safety valve for preventing the flow of materials therethrough in the presence of predetermined conditions is disclosed. Resilient means urges an outlet closure member upstream away from the outlet. When the predetermined conditions have been met, the closure member overcomes the resistance of the resilient means and is seated against the outlet to prevent further flow therethrough.
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公开(公告)号：US3621875A
公开(公告)日：1971-11-23
申请号：US3621875D
申请日：1969-11-25
申请人： CESSNA AIRCRAFT CO
发明人： ALEXANDER FRANK N
CPC分类号： F16K17/0433 , F16K17/044 , G05D16/10 , Y10T137/785 , Y10T137/7905
摘要： A pressure-actuated relief valve is disclosed having biasing means urging the poppet to a closed position which biasing means includes a damped and an undamped member cooperating to provide fast response while controlling poppet oscillation. The damped member includes a spring within a hydraulic dashpot and serves as a reaction seat for the undamped member. Fast pressure increases compress only the undamped member while longer duration pressure signals will also compress the damped member.
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