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1. 发明申请

WO2013009432A2 POPPET VALVE WITH INTEGRATED DAMPENER 审中-公开
标题翻译：带集成阻尼器的POPPET阀
公开(公告)号：WO2013009432A2
公开(公告)日：2013-01-17
申请号：PCT/US2012/042660
申请日：2012-06-15
申请人： NATIONAL OILWELL VARCO, L.P. , MARICA, Adrian
发明人： MARICA, Adrian
IPC分类号： F04B39/10 , F04B47/00 , F04B53/10 , F04B53/12 , F16K15/02
CPC分类号： F16K3/262 , F04B39/1013 , F04B47/00 , F04B53/10 , F04B53/129 , F16K15/026 , F16K47/00 , Y10T137/7904 , Y10T137/7915
摘要： A poppet valve with an integrated dampener is disclosed. In some embodiments, the valve includes a poppet guide with a stem and a hollow poppet is disclosed. The hollow poppet receives the poppet guide stem therein, thereby defining an internal cavity. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity. The poppet is also moveable relative to a valve seat between a seated position and an unseated position. The poppet may include a body with a seal groove and an elastic seal disposed within the seal groove. The seal is configured to engage the valve seat prior to the poppet body when the poppet moves toward the seated position. The valve may include a poppet guide pivot system that enables pivoting of the poppet guide and the poppet relative to an axial centerline of the valve.
摘要翻译：公开了一种具有集成阻尼器的提升阀。在一些实施例中，阀包括具有杆的提升阀引导件和空心提升阀。空心提升阀在其中容纳提升阀导向杆，由此限定内部空腔。提升阀可相对于提升阀导向件移动以调节内腔的容积。提升阀也可相对于阀座在就座位置和非阀座位置之间移动。提动头可以包括具有密封槽和设置在密封槽内的弹性密封件的主体。密封件构造成当提升阀向着就座位置移动时在提升阀体之前接合阀座。阀可以包括提升阀引导件枢转系统，该提升阀引导件枢转系统能够使提升阀引导件和提升阀相对于阀的轴向中心线枢转。

2. 发明申请

WO2012082384A2 PULSATION DAMPENING SYSTEM FOR A RECIPROCATING PUMP 审中-公开
标题翻译：用于复合泵的脉冲衰减系统
公开(公告)号：WO2012082384A2
公开(公告)日：2012-06-21
申请号：PCT/US2011/062800
申请日：2011-12-01
申请人： NATIONAL OILWELL VARCO, L.P. , MARICA, Adrian
发明人： MARICA, Adrian
CPC分类号： F04B17/048 , F04B11/00 , Y10T137/0318 , Y10T137/86091
摘要： A pressure pulsation dampening system for a pump that pressurizes a working fluid. In some embodiments, the dampening system includes a hydraulic cylinder, a valve, and a controller. The hydraulic cylinder has a piston that is movably disposed within a housing and divides the housing into a working fluid chamber and a hydraulic fluid chamber. An outlet of the pump is in fluid communication with the working fluid chamber, and the valve is in fluid communication with the hydraulic fluid chamber. The controller is operable to actuate the valve to a first configuration, wherein pressurized hydraulic fluid is supplied to the hydraulic fluid chamber, and to a second configuration, wherein hydraulic fluid is exhausted from the hydraulic fluid chamber. The piston is movable under fluid pressure, whereby working fluid is relieved from the outlet to the working fluid chamber or supplied to the outlet from the working fluid chamber.
摘要翻译：一种用于对工作流体加压的泵的压力脉动阻尼系统。在一些实施例中，阻尼系统包括液压缸，阀和控制器。液压缸具有可移动地设置在壳体内并将壳体分成工作流体室和液压流体室的活塞。泵的出口与工作流体室流体连通，并且阀与液压流体室流体连通。控制器可操作以将阀门致动到第一配置，其中加压液压流体被供应到液压流体室，并且其中液压流体从液压流体室排出的第二配置。活塞在流体压力下可移动，从而工作流体从出口释放到工作流体室，或从工作流体室供给到出口。

3. 发明申请

WO2011150099A2 A HYDRAULICALLY ACTUATED RECIPROCATING PUMP 审中-公开
标题翻译：液压式液压泵
公开(公告)号：WO2011150099A2
公开(公告)日：2011-12-01
申请号：PCT/US2011/037958
申请日：2011-05-25
申请人： NATIONAL OILWELL VARCO, L.P. , MARICA, Adrian
发明人： MARICA, Adrian
IPC分类号： F04B9/08 , F04B13/00 , F04B39/12 , F04B39/00
CPC分类号： F04B15/02 , F04B9/1035 , F04B47/08
摘要： A hydraulically driven reciprocating pump. In some embodiments, the pump includes a housing including a hydraulic chamber, a cylinder coupled to the housing, a piston assembly adapted for reciprocal motion within the housing and the cylinder, the piston assembly separating the hydraulic chamber into three subchambers, and a hydraulic system fluidicly coupled to each of the subchambers. The hydraulic system is actuatable to deliver hydraulic fluid to a first of the subchambers, whereby the piston assembly strokes back and a working fluid is drawn into the cylinder, to deliver hydraulic fluid to a second of the subchambers, whereby the piston assembly strokes out and the working fluid is exhausted from the cylinder, and to adjust a volume of hydraulic fluid within a third of the subchambers, whereby the piston assembly translates to bring a pressure of the working fluid in the cylinder to within a pre-selected range.
摘要翻译：液压驱动往复泵。在一些实施例中，泵包括壳体，其包括液压室，联接到壳体的气缸，适于在壳体和气缸内往复运动的活塞组件，活塞组件将液压室分为三个子室，液压系统流体耦合到每个子室。液压系统可致动以将液压流体输送到第一个子室，由此活塞组件向后推动并且将工作流体吸入气缸中，以将液压流体输送到第二个子室，由此活塞组件向外移动，工作流体从气缸中排出，并且调节三分之一室内的液压流体的体积，由此活塞组件转动以使工作流体在气缸中的压力在预选范围内。

4. 发明申请

WO2010045064A1 MUD PUMP MODULES WITH SURGE DAMPENERS 审中-公开
标题翻译：带防尘罩的泥浆泵模块
公开(公告)号：WO2010045064A1
公开(公告)日：2010-04-22
申请号：PCT/US2009/059612
申请日：2009-10-06
申请人： NATIONAL OILWELL VARCO L.P. , MARICA, Adrian
发明人： MARICA, Adrian
IPC分类号： E21B21/08
CPC分类号： F04B37/14 , F04B23/10 , F04B39/0027 , F04B39/0061 , F04B47/00 , F04B53/001 , F04B53/002 , F04B53/10
摘要： A drilling fluid pumping system including a pump apparatus with a pumping chamber having an inlet valve and an outlet valve and a dampener system in fluid communication with the pumping chamber for damping the flow of fluid, e.g. drilling fluid, This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C. F. R. 1.72(b).
摘要翻译：一种钻井液泵送系统，包括具有泵送室的泵装置，泵送室具有入口阀和出口阀以及与泵送室流体连通的阻尼器系统，用于阻止流体流动，钻井液，提供此摘要以符合要求摘要的规则，允许搜索者或其他读者快速确定技术披露的主题，并提交其理由是不会用于解释或限制权利要求的范围或意义，37 CFR 1.72（b）。

5. 发明申请

WO2017123656A3 DIRECT DRIVE PUMP ASSEMBLIES 审中-公开
公开(公告)号：WO2017123656A3
公开(公告)日：2017-07-20
申请号：PCT/US2017/013048
申请日：2017-01-11
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： MARICA, Adrian
IPC分类号： F04B1/14 , F04B9/02 , F04B15/02 , F16H23/08 , F04B11/00 , F04B23/06
摘要： Disclosed are embodiments of a pumping system with connectable and disconnectable pumping assemblies. The pumping assemblies can include transmissions between the power end and fluid end, wherein the transmission can include a cam assembly or a linkage or rocker assembly. The transmission can include an input shaft, and an offset collar including a throughbore extending at a non-zero angle relative to the input shaft axis. In addition, the transmission can include a linking member including a spherical member, a first shaft and a second shaft. The first shaft is received with the throughbore of the offset collar, and the spherical member is slidingly received within a seat. Further, the transmission includes a carriage assembly including a projection. The second shaft extends through the projection.

6. 发明申请

WO2014172578A1 POPPET VALVE WITH VARIABLE DAMPENER AND ELASTICALLY SUPPORTED GUIDE 审中-公开
标题翻译： POPPET阀与可变阻尼器和弹性支持指南
公开(公告)号：WO2014172578A1
公开(公告)日：2014-10-23
申请号：PCT/US2014/034563
申请日：2014-04-17
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： MARICA, Adrian
IPC分类号： E21B21/10 , F16K11/02
CPC分类号： F16K15/026 , E21B21/01 , E21B21/10 , F04B39/1013 , F04B53/10
摘要： A valve assembly for operation within a valve body of a pump includes an axial centerline, a poppet guide having a stem, and a poppet slidingly coupled to the poppet guide so that the poppet and the poppet guide define an internal cavity. The valve assembly also includes a flex-ible poppet guide mounting system coupled to the poppet guide and the poppet and includes a variable-area flow restrictor in fluid communication with the internal cavity. The flexible poppet guide mounting system is configured to support the poppet guide and the poppet for lateral and axial movement of the poppet guide and the poppet relative to the axial centerline. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity.
摘要翻译：用于在泵的阀体内操作的阀组件包括轴向中心线，具有杆的提升头引导件和滑动地联接到提升引导件的提升阀，使得提升阀和提升阀引导件限定内部空腔。阀组件还包括耦合到提升阀引导件和提升阀的柔性提升阀引导器安装系统，并且包括与内腔流体连通的可变区域限流器。柔性提升支架安装系统构造成支撑提升阀导向件和提升阀用于使提升阀导向件和提升阀相对于轴向中心线的横向和轴向运动。提升阀可以相对于提升引导件移动以调节内腔的体积。

7. 发明申请

WO2010141227A3 APPARATUS FOR REDUCING TURBULENCE IN A FLUID STREAM 审中-公开
公开(公告)号：WO2010141227A3
公开(公告)日：2010-12-09
申请号：PCT/US2010/035505
申请日：2010-05-20
申请人： NATIONAL OILWELL VARCO, L.P. , MARICA, Adrian
发明人： MARICA, Adrian
IPC分类号： F04D29/66 , F04D7/04 , F04D13/00
摘要： A system for conveying fluid includes a conduit segment and a pump disposed downstream of and fluidicly coupled to the conduit segment. The conduit segment has an interior volume for conveying the fluid in a predetermined direction of flow and a plurality of elongate vanes disposed within the interior volume.

8. 发明申请

WO2020076569A1 CONNECTORS FOR PUMPING ASSEMBLIES AND METHODS RELATING THERETO 审中-公开
公开(公告)号：WO2020076569A1
公开(公告)日：2020-04-16
申请号：PCT/US2019/054191
申请日：2019-10-02
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： MARICA, Adrian
IPC分类号： F04B9/02 , F04B17/00 , F04B37/00 , F04B39/14 , F04B43/02 , F04B53/16 , F04B53/22 , F16M1/00 , F16M1/02 , F16M7/00 , F16M11/04
摘要： Pump assemblies, pumping systems including said pump assemblies, and related methods are disclosed. In an embodiment, the pump assembly includes a frame, a fluid end, and a power end coupled to the frame and the fluid end. In addition, the pump assembly includes a plurality of connectors coupled between the fluid end and the frame. Each of the connectors include an axis, a first connector member, and a second connector member. The first connector member is configured to actuate relative to the second connector member to adjust a total axial length of the connector along the axis.

9. 发明申请

WO2019191430A1 ROLLERS WITH INSERTS FOR GRIPPING TUBULAR MEMBERS 审中-公开
公开(公告)号：WO2019191430A1
公开(公告)日：2019-10-03
申请号：PCT/US2019/024585
申请日：2019-03-28
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： MARICA, Adrian
IPC分类号： E21B19/16 , E21B17/04
摘要： An iron roughneck is configured to make and break threaded connections between a pair of tubular members. An example of an iron roughneck includes a torque wrench to grip a first tubular member and a spin wrench to engage and rotate a second tubular member. The spin wrench includes a wrench frame, a roller supported by the wrench frame, and a motor configured to rotate the roller. The roller includes a cylindrical roller body with a cylindrical outer surface, a plurality of retention pockets in the roller body with pocket openings in the outer surface of the roller body, and a plurality of inserts, each insert disposed in one of the retention pockets, wherein each insert is moveable relative to the roller body.

10. 发明申请

WO2017214176A9 ELASTIC AND SEALING ELEMENTS IN MULTI-STAGE PUMPS 审中-公开
公开(公告)号：WO2017214176A9
公开(公告)日：2017-12-14
申请号：PCT/US2017/036190
申请日：2017-06-06
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： MARICA, Adrian , BURNS, Tim , HILBURN, Homer
IPC分类号： E21B43/12 , F04D1/06 , F04D13/08 , F04D13/10 , F04D29/00 , F04D29/04 , F04D29/22 , F04D29/44 , F04D7/02
摘要： A pump includes a driving shaft having a central axis, two retention members disposed on the driving shaft, a rotor disposed on the driving shaft between the two retention members, a bushing disposed on the driving shaft between the two retention members, a diffuser disposed about the driving shaft and adjacent the rotor such that the rotor is rotatably disposed within the diffuser, and an axial biasing member. The axial biasing member is disposed on the shaft and axially pre-loaded to compress the axial biasing member, the rotor, and the bushing between the two retention members and impart a tension in the driving shaft.

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