公开(公告)号：US4744382A

公开(公告)日：1988-05-17

申请号：US043955

申请日：1987-04-29

申请人： James E. Visnic ,  Kevin M. Johnston

发明人： James E. Visnic ,  Kevin M. Johnston

IPC分类号： F16K17/00 ,  F16K17/16 ,  F16K17/14

CPC分类号： F16K17/003 ,  F16K17/16 ,  Y10S137/91 ,  Y10T137/1714 ,  Y10T137/1752 ,  Y10T137/1804 ,  Y10T137/1812

摘要： A combination thermal or pressure activated relief valve is disclosed. The valve includes a housing having an inlet and an outlet formed therein. The inlet is adapted to be attached to a pressure source while the outlet is in communication with an area having a lower pressure value than said pressure source. An insert is secured in the outlet and includes a stem having a first passage formed therethrough and a helical groove formed about its outer periphery. The groove cooperates with the housing to form a helical passageway between the inlet and the outlet. A fusible material is inserted into the helical passageway and normally blocks fluid flow therethrough and is fusible at a selected temperature to permit fluid flow therethrough. A second member is secured to the insert and has a passage formed therethrough which communicates with the first passage formed in the insert. A pressure responsive lamina is positioned across the passage for normally blocking fluid flow therethrough. The lamina is rupturable in response to a selected pressure arising at the pressure source so as to permit pressurized fluid to be released to the lower pressure area.

摘要翻译： 公开了一种组合的热或压力激活的安全阀。 阀包括具有形成在其中的入口和出口的壳体。 入口适于附接到压力源，同时出口与具有比所述压力源更低的压力值的区域连通。 插入件被固定在出口中，并且包括具有穿过其形成的第一通道的杆和围绕其外周形成的螺旋槽。 槽与壳体配合以在入口和出口之间形成螺旋通道。 可熔材料被插入到螺旋通道中，并且通常阻挡流过其中的流体，并且在选定的温度下可熔化以允许流体流过其中。 第二构件被固定到插入件上并且具有通过其形成的通道，其与形成在插入件中的第一通道连通。 压力响应薄片跨过通道定位，以正常阻挡流过其中的流体。 响应于在压力源处产生的选定压力，薄层是可破裂的，以允许加压流体被释放到较低压力区域。

公开(公告)号：US4744383A

公开(公告)日：1988-05-17

申请号：US43830

申请日：1987-04-29

申请人： James E. Visnic ,  Kevin M. Johnston

发明人： James E. Visnic ,  Kevin M. Johnston

IPC分类号： F16K17/38 ,  F17C13/12 ,  F16K17/14

CPC分类号： F17C13/123 ,  F16K17/383 ,  F17C2203/0646 ,  F17C2203/0648 ,  F17C2203/066 ,  F17C2205/0317 ,  F17C2205/0323 ,  F17C2205/0332 ,  F17C2205/0385 ,  F17C2205/0394 ,  F17C2221/011 ,  F17C2221/014 ,  F17C2221/033 ,  F17C2223/033 ,  F17C2223/036 ,  F17C2250/072 ,  F17C2270/0168 ,  F17C2270/0186 ,  F17C2270/02 ,  Y10T137/1797 ,  Y10T137/1812

摘要： A thermally activated valve is disclosed for attachment to a pressurized vessel such that substances contained therein can be released at a selected temperature value. The valve includes a body having an inlet and an outlet in fluid communication with each other. The inlet fluidly communicates with the interior of the pressurized vessel while the outlet is in communication with an area having a lower pressure value. Secured in the outlet is an insert having a stem. The stem has a helical groove formed about its outer periphery and has at least one small aperture which is in communication with the helical groove. The insert cooperates with the body to form a helical passageway therethrough. Positioned within the helical passageway is a material for normally blocking fluid flow therethrough which is fusible at a selected temperature to permit fluid flow therethrough. The helical passageway cooperates with the small aperture formed in the stem to extend the life of the valve by inhibiting the extrusion of the fusible material.

摘要翻译： 公开了一种用于附接到加压容器的热活化阀，使得其中所含的物质可以以选定的温度值释放。 阀包括具有彼此流体连通的入口和出口的主体。 入口与加压容器的内部流体连通，同时出口与具有较低压力值的区域连通。 在插座上安装的是带有杆的插入物。 杆具有围绕其外周形成的螺旋槽，并具有与螺旋槽连通的至少一个小孔。 插入件与主体配合以形成穿过其中的螺旋形通道。 定位在螺旋通道内的是用于通常阻挡流过其中的流体的材料，其在选定的温度下可熔化以允许流体流过其中。 螺旋通道与形成在杆中的小孔协作，通过抑制可熔材料的挤出来延长阀的寿命。

公开(公告)号：US4800948A

公开(公告)日：1989-01-31

申请号：US43978

申请日：1987-04-29

申请人： James E. Visnic

发明人： James E. Visnic

IPC分类号： F16K17/38 ,  B22D27/15

CPC分类号： F16K17/383 ,  Y10T137/1812 ,  Y10T29/49417

摘要： A method is disclosed for forming a thermally activated pressure relief valve which is designed to be attached to a pressure vessel. The valve contains a body having an inlet and an outlet in fluid communication with each other and an insert having a helical groove formed about its outer periphery. The method includes securing the insert in the outlet such that the helical groove cooperates with the body to form a helical passageway. A molten fusible material is then introduced into one end of the helical passageway. A force is exerted on the material to cause it to move through the helical passageway and displace any trapped air, gas or foreign matter which might be present therein. Once the material completely fills the passageway, it is allowed to cool and solidify. This method is advantageous in producing a safety relief valve which can operate at higher service pressures and temperatures over an extended period of time.

摘要翻译： 公开了一种用于形成被设计成连接到压力容器上的热活化压力释放阀的方法。 阀包括具有彼此流体连通的入口和出口的主体，以及具有围绕其外周形成的螺旋槽的插入件。 该方法包括将插入件固定在出口中，使得螺旋槽与主体配合形成螺旋通道。 然后将熔融的可熔材料引入螺旋通道的一端。 力施加在材料上以使其移动通过螺旋形通道并且置换可能存在于其中的任何被捕获的空气，气体或异物。 一旦材料完全填充通道，就可以冷却和固化。 该方法在生产安全泄压阀方面是有利的，该安全泄压阀可在更长的工作压力和温度下工作。