Dynamic seal专利检索-控制棒核能专利检索查询-专利查询网

Dynamic seal

阅读：418发布：2022-08-18

专利汇可以提供Dynamic seal专利检索，专利查询，专利分析的服务。并且A control rod drive system comprising basically a neutron absorbing control rod means defining a free floating piston, actuated by liquid sodium or other reactor coolant, a dynamic seal means and fluid valve means for moving said control rod. Said dynamic seal means constructed to prevent bypass of liquid metal, such as sodium, around the piston, and including a plurality of serially disposed skirts circumferentially arranged about the piston an sleeve and having lips directed toward the high-pressure end of the piston or sleeve, and also including circumferentially disposed toroidal grooves in the piston or sleeve between each of said skirts, whereby liquid metal from said high-pressure end is deflected by said lips of said skirts to circulate in said grooves and thus prevented from passing freely around said lips. In addition, any solid particles in the liquid metal are entrapped by the circulation in the grooves of the seal means.，下面是Dynamic seal专利的具体信息内容。

权利要求

1. A seal means for substantially preventing the flow of fluid between a pair of elements while functioning to maintain solid particles in suspension in the fluid and providing a reaction force on one of the pair of elements comprising: a longitudinally extending hollow member, a body member positioned within said hollow member, a plurality of skirtlike members positioned in spaced relationship about the circumference of said body member, each of said skirtlike members including an outer sharp-edged liplike portion, said liplike portion extending in a direction toward an associated fluid flow, said skirtlike members each being constructed to define a convex surface and a concave surface, said convex and concave surfaces joining to define said sharp-edged liplike portion of each skirtlike member, and a plurality of toroidal grooves defined by and positioned about the circumference of said body member, one of said grooves being positioned intermediate an adjacent pair of said skirtlike members, each of said toroidal grooves having a portion thereof forming at least a portion of said concave surfaces of said skirtlike members, said convex surfaces of said skirtlike members adjoining another portion of said toroidal grooves so as to define a smooth reverse-curve therebetween, whereby an associated fluid flowing past said skirtlike members is deflected by said liplike portion of said skirtlike members to circulate in said toroidal grooves thereby substantially preventing flow of fluid between said hollow member and said body member while maintaining particles in an associated fluid suspended therein by circulation of such an associated fluid in said toroidal grooves and providing a reaction force on said body member in a direction of flow of an associated fluid due to fluid flow reversal caused by said liplike portions and said toroidal grooves, said body member comprising at least a portion of a free floating piston assembly adapted to be moved in one direction by associated pressurized fluid directed toward said liplike portions of said skirtlike members, and moved in the opposite direction by at least the force of gravity when such associated pressurized fluid is removed, said hollow member comprising a first conduit means, a second conduit means concentrically spaced about said first conduit means to define a passageway therebetween, said first and second conduit means being closed at one end thereof, said first conduit means being provided with at least one aperture therein to provide fluid communication adjacent said closed end between said first conduit interior and said passageway, and means for selectively directing an associated pressurized fluid into the opposite end of said first conduit means or into said passageway for moving said piston assembly in opposite directions.

2. The combination defined in claim 1, wherein said means for selectively directing an associated pressurized fluid comprises a fluidic switch unit, said switch unit being provided with conduit means for force-transmitting fluid and control fluid, and means for directing control fluid into associated force-transmitting fluid for selectively directing associated force-transmitting fluid into said first conduit means or into said passageway.

3. The combination defined in claim 2, wherein said piston assembly include a neutron-absorbing section adapted to be moved by said switch unit into and out of a nuclear reactor core for controlling said reactor.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
核电厂控制棒静态棒位线性度测量方法及电子设备	2020-05-08	374
用于鼓棒系统的综合测试平台	2020-05-08	734
一种小型棒材高速上冷床的尾部制动器	2020-05-11	699
多类型芯块混合装载金属冷却反应堆及管理方法	2020-05-11	803
浮动核电站倾覆状态下的停堆控制棒驱动装置及方法	2020-05-13	288
一种开口销紧固件的超声检测探头及方法	2020-05-12	775
一种铪酸铕中子吸收材料及其应用	2020-05-12	417
一种钢厂棒材生产线棒材风冷系统	2020-05-08	847
用于控制棒驱动线的热态试验装置及其对中方法	2020-05-08	636
包括运动控制棒的改进的机器人训练系统	2020-05-13	151

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。

申请试用

控制棒热门专利

热门分类

Dynamic seal

该功能需要专业版企业版VIP权限，您可以：