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    Method of closing a pressure vessel
    21.
    发明申请
    Method of closing a pressure vessel 有权
    关闭压力容器的方法

    公开(公告)号：US20030135975A1

    公开(公告)日：2003-07-24

    申请号：US10306809

    申请日：2002-11-27

    发明人： Stephan L. Abbott ,  Louis J. Tylman

    IPC分类号： B23P011/00

    CPC分类号： B23P19/067 ,  F16B31/043 ,  G21C13/073 ,  G21Y2002/202 ,  G21Y2002/402 ,  G21Y2002/501 ,  G21Y2004/40 ,  G21Y2004/501 ,  G21Y2004/504 ,  Y02E30/40 ,  Y10T29/4935 ,  Y10T29/49947 ,  Y10T29/49948 ,  Y10T29/531

    摘要： A pressure vessel having a removable closure head in a high radiation environment is closed by placing the closure head having a flange over and spaced from the flange of a pressure vessel body containing fissile material. The closure studs are installed in closure stud holes of the pressure vessel body flange. Transition nut members of hydraulic nut assemblies are threaded onto the closure studs. Hydraulic hoses are connected between the hydraulic nut assemblies and a pressure source. The pressure source simultaneously pressurizes the hydraulic nut assemblies to simultaneously apply a uniform force to the closure studs sufficient to seat the spaced apart closure head flange on the pressure vessel body flange and to elongate the closure studs. The hydraulic nut assemblies are locked in place over the closure head flange while the force is applied to the closure studs and the closure studs are elongated. The hydraulic pressure on the hydraulic nut assemblies is released while the hydraulic nut assemblies are locked in place over the closure head flange and the closure studs are elongated. The hydraulic nut assemblies may remain connected with the hydraulic hoses after the pressure vessel has been returned to on-line operations and is generating thermal power. The hydraulic hoses connected with the hydraulic nut assemblies may be vented while generating thermal power in the pressure vessel.

    摘要翻译： 在高辐射环境中具有可移除的封闭头的压力容器通过将封闭头放置在包含易裂变材料的压力容器主体的凸缘上并与之隔开的封闭头而封闭。 封闭柱安装在压力容器主体凸缘的闭合螺栓孔中。 液压螺母组件的过渡螺母部件拧到闭合螺柱上。 液压软管连接在液压螺母组件和压力源之间。 压力源同时对液压螺母组件进行加压，以同时对闭合螺柱施加均匀的力，足以将间隔开的封闭头凸缘安置在压力容器主体凸缘上并且延长闭合螺柱。 液压螺母组件被锁定在闭合头凸缘上的适当位置，同时力被施加到闭合柱螺栓上，并且闭合螺柱是细长的。 液压螺母组件上的液压被释放，同时液压螺母组件被锁定在封闭头凸缘上的适当位置，并且闭合螺柱是细长的。 在压力容器返回到在线操作并且产生热功率之后，液压螺母组件可以与液压软管保持连接。 与液压螺母组件连接的液压软管可以在压力容器中产生热力的同时被排放。

    Hydraulic fastener
    22.
    发明授权
    Hydraulic fastener 失效
    液压紧固件

    公开(公告)号：US5029461A

    公开(公告)日：1991-07-09

    申请号：US598779

    申请日：1990-10-18

    申请人： Gordon D. Lawrence ,  George G. Hall

    发明人： Gordon D. Lawrence ,  George G. Hall

    IPC分类号： B21B31/07 ,  F16B31/04

    CPC分类号： F16C13/02 ,  B21B31/07 ,  F16B31/043 ,  F16C35/078 ,  B21B2203/30 ,  B21B31/074 ,  Y10T403/1633

    摘要： A hydraulic fastener for mounting bearing assemblies on the end of a roll in a rolling mill stand. The fastener includes a hydraulic ring cylinder component having a front face directed toward a roll and an inner cylindrical surface adapted to fit onto a reduced diameter end section of the roll. A chamber extends about the circumference of the cylinder component and is open at the front face. A hydraulic ring piston component is slidably received in this chamber and has an inner face. A retaining ring is threadedly mounted in the cylinder component to hold at least a substantial portion of the piston in the chamber. Passageways are provided in the cylinder component for injecting grease into the chamber and into a space formed between the inner face of the piston and an opposing face of the chamber. A split ring is secured on the end section of the roll to retain the cylinder component in place. Zero-leakage two-directional seals are arranged between the cylinder component and the piston at both radially inner and radially outer sides of the piston to prevent escape of said grease.

    摘要翻译： 一种液压紧固件，用于在滚轧机架中的辊的端部上安装轴承组件。 紧固件包括具有指向辊的前表面和适于装配到辊的直径较小的端部的内圆柱形表面的液压环筒部件。 腔室围绕气缸部件的圆周延伸并且在前表面处敞开。 液压环活塞部件可滑动地容纳在该腔室中并且具有内表面。 保持环螺纹地安装在气缸部件中，以将至少大部分的活塞保持在腔室中。 通道设置在气缸部件中，用于将油脂注入到腔室中并进入形成在活塞的内表面和腔室的相对面之间的空间中。 分离环固定在辊的端部上以将气缸部件保持在适当位置。 在活塞的径向内径和径向外侧的气缸部件和活塞之间设置零泄漏双向密封件，以防止所述润滑脂脱落。

    Apparatus for tightening high-strength steel bolts
    23.
    发明授权
    Apparatus for tightening high-strength steel bolts 失效
    高强度钢制螺栓紧固装置

    公开(公告)号：US4020720A

    公开(公告)日：1977-05-03

    申请号：US640264

    申请日：1975-12-12

    申请人： Kaneharu Fujii

    发明人： Kaneharu Fujii

    IPC分类号： B23P19/06 ,  B25B29/02 ,  F16B31/04

    CPC分类号： F16B31/043 ,  B23P19/067 ,  B25B29/02

    摘要： In the steel construction using high-strength steel bolts which are tightened in a pretensioned state, a method of and an apparatus for tightening high-strength steel bolts by subjecting the mated nuts to the compressive force which equals substantially the force which places the high-strength steel bolts in the pretensioned state.

    摘要翻译： 在使用在预张紧状态下被拉紧的高强度钢螺栓的钢结构中，通过使匹配的螺母受到等于基本上等于高强度钢的力的压缩力来紧固高强度钢螺栓的方法和装置， 强度钢螺栓处于预张紧状态。

    TURBOMACHINE SERVICE APPARATUS AND RELATED METHOD
    26.
    发明申请
    TURBOMACHINE SERVICE APPARATUS AND RELATED METHOD 审中-公开

    公开(公告)号：US20180333812A1

    公开(公告)日：2018-11-22

    申请号：US15597581

    申请日：2017-05-17

    申请人： General Electric Company

    发明人： Maxwell Evan Miller ,  Robert Edward Huth ,  Zachary Lane Walters

    IPC分类号： B23P19/06 ,  F01D25/24

    CPC分类号： B23P19/067 ,  B25B29/02 ,  F01D25/243 ,  F05D2230/60 ,  F05D2230/70 ,  F16B31/043

    摘要： Various embodiments include an apparatus for servicing a turbomachine, along with a related servicing method. In some cases, the apparatus includes: a system for servicing a turbomachine casing having adjacent segments joined with a set of threaded fasteners, the system including: a threaded fastener tensioning device sized to fit over ends of a threaded fastener in the set of threaded fasteners, the threaded fastener tensioning device including: a retention component for retaining a first end of the threaded fastener; and a tensioner for tensioning or de-tensioning a second end of the threaded fastener; and a mounting system coupled with the threaded fastener tensioning device, the mounting system for retaining the threaded fastener tensioning device proximate the adjacent segments of the turbomachine casing.

    Tensioning device for extending a threaded bolt
    27.
    发明授权
    Tensioning device for extending a threaded bolt 有权

    公开(公告)号：US09878430B2

    公开(公告)日：2018-01-30

    申请号：US13929821

    申请日：2013-06-28

    申请人： Jörg Hohmann ,  Frank Hohmann

    发明人： Jörg Hohmann ,  Frank Hohmann

    IPC分类号： B25B17/00 ,  B25B29/02 ,  B25B13/00 ,  B23P19/06 ,  B25B23/14

    CPC分类号： B25B29/02 ,  B23P19/067 ,  B25B23/14 ,  F16B1/0071 ,  F16B31/043

    摘要： A tensioning device for extending a threaded bolt by tensioning the threaded end section has a supporting tube surrounding the threaded end section, a cylinder arranged in continuation of the supporting tube and having at least one piston axially movable therein, an exchange socket which is screwable to the threaded end section and is configured such that it can be carried along axially by the piston, and a pin arranged in an axially movable manner in a longitudinal guide in the exchange socket. The pin end is axially supportable against that end of the threaded bolt that has the threaded end section. In order to assess the actually usable thread projection even in cases in which known tensioning devices provide imprecise results, the pin is formed in a radially widened manner at its pin end compared with the pin cross section.

    Seals for hydraulic assemblies
    28.
    发明授权
    Seals for hydraulic assemblies 有权

    公开(公告)号：US09816614B2

    公开(公告)日：2017-11-14

    申请号：US13546298

    申请日：2012-07-11

    申请人： John Wentworth Bucknell

    发明人： John Wentworth Bucknell

    IPC分类号： F16J15/02 ,  F16J15/3236 ,  F16J15/3212 ,  B25B29/02 ,  F16B31/04

    CPC分类号： F16J15/028 ,  B25B29/02 ,  F16B31/043 ,  F16J15/3212 ,  F16J15/3236 ,  Y10T137/7722

    摘要： A sealing device for a hydraulic assembly wherein hydraulic fluid is contained in working chamber (53) formed between body (52) and thrust member (51) of the assembly. The device comprises annular seal (63) with opposed sealing faces which are urged into sealing engagement between body (52) and thrust member (51) which have convergent sealing faces. The device may also have a pressure relief valve (100) tapped into the over-stroke end of chamber (53) to protect seal (63) from over-stroke damage comprising porous body (101) which allows fluid to bleed from chamber (53) and allows seal (63) to pass the tapping point without obstruction.

    Clamping device for expanding a threaded bolt
    29.
    发明授权
    Clamping device for expanding a threaded bolt 有权

    公开(公告)号：US09744656B2

    公开(公告)日：2017-08-29

    申请号：US14568192

    申请日：2014-12-12

    申请人： Frank Hohmann ,  Jörg Hohmann

    发明人： Frank Hohmann ,  Jörg Hohmann

    IPC分类号： B25B29/02 ,  B23P19/06 ,  F16B31/04

    CPC分类号： B25B29/02 ,  B23P19/067 ,  F16B31/043

    摘要： A clamping device for expanding a threaded bolt is provided with a support pipe supported against an underlay surrounding the threaded bolt. A cylindrical housing arranged in extension of the support pipe has a piston movable in longitudinal direction and connectable to a hydraulic supply. A changeable bushing is axially carried by the piston and is provided with an inner thread and a radially expanded portion. A resilient arrangement is arranged around the bushing and acts axially on the piston. A lid is secured to the housing. The other support of the resilient arrangement is provided on the lower side of the housing. The lid has a lid base member and a closure lid. The lid base member is provided with an opening closable by the closure lid. The radial extent of the opening is greater than the radial extent of the radially expanded portion of the bushing.