公开(公告)号：US20180106253A1

公开(公告)日：2018-04-19

申请号：US15835066

申请日：2017-12-07

申请人： IHI CORPORATION

发明人： Kenji TAKAMIYA ,  Seiei MASUDA

IPC分类号： F04C11/00 ,  F04C2/08 ,  F04C15/00 ,  F04C2/10

CPC分类号： F04C11/001 ,  F01C21/02 ,  F04C2/084 ,  F04C2/102 ,  F04C2/14 ,  F04C14/02 ,  F04C14/24 ,  F04C15/0042 ,  F16C17/02 ,  F16C17/18 ,  F16C25/04 ,  F16C2361/61

摘要： A gear pump is comprised of a driving gear, a first driven gear and second driven gears mutually in mesh; a housing accommodating them and defining a flow path including a first suction port, a second suction port, a first pressure port and a second pressure port; a floating comprising a thrust face bearing a floating force exerted by fluids and first, second and third pressure-receiving faces respectively oriented in a direction opposed to the thrust face; a first pressurizing chamber having fluid connection with the first pressure port or the second pressure port to exert pressure on the first pressure-receiving face; a second pressurizing chamber having fluid connection with the first suction port to exert pressure on the second pressure-receiving face; and a third pressurizing chamber having fluid connection with the second suction port to exert pressure on the third pressure-receiving face.

公开(公告)号：US20170306760A1

公开(公告)日：2017-10-26

申请号：US15503901

申请日：2015-07-30

申请人： SEEPEX GmbH

发明人： Dirk OVERMEIER ,  Marcel GRIESDORN ,  Stefan GOETHEL

IPC分类号： F01C21/10 ,  F04C15/00 ,  F01C21/00 ,  F04C2/107

CPC分类号： F01C21/104 ,  F01C21/007 ,  F04C2/107 ,  F04C2/1073 ,  F04C15/0019 ,  F04C15/0042 ,  F04C2240/10 ,  F04C2240/30 ,  F04C2240/805

摘要： The invention relates to an eccentric screw pump, comprising at least one stator (1) composed of an elastic material and a rotor (2) that can be rotated in the stator (1), the stator (1) being surrounded by a stator casing (3) at least in some regions. The stator casing (3) consists of at least two casing segments (19) as a longitudinally divided casing and forms a stator clamping device, by means of which the stator (2) can be clamped against the rotor (1) in the radial direction. The pump is characterized in that the casing segments (19) have at least one clamping flange (20) having first clamping surfaces (21) at each end of the casing segments and that one or more clamping elements (22, 23), which can be displaced in the axial direction and have second clamping surfaces (24), are placed onto the clamping flange (20), the first clamping surfaces (21) and the second clamping surfaces (24) being designed in such a way and interacting in such a way that the stator casing (3) can be clamped against the stator in the radial direction in the course of an axial displacement of the clamping elements (22, 23).

公开(公告)号：US09765790B2

公开(公告)日：2017-09-19

申请号：US14660618

申请日：2015-03-17

申请人： Baker Hughes Incorporated

发明人： David Tanner ,  Arturo Luis Poretti ,  Ryan P. Semple ,  Aron M. Meyer

IPC分类号： F04D13/08 ,  F04D29/041 ,  F04C2/107 ,  F04C13/00 ,  F04C15/00 ,  F04D1/00 ,  F04D7/04 ,  F04D13/06 ,  F04D29/043 ,  F04D29/42 ,  F04D29/44

CPC分类号： F04D29/0413 ,  F04C2/107 ,  F04C2/1071 ,  F04C13/008 ,  F04C15/0042 ,  F04C15/008 ,  F04D1/00 ,  F04D7/04 ,  F04D13/06 ,  F04D13/08 ,  F04D29/043 ,  F04D29/426 ,  F04D29/445

摘要： An electrical submersible pump assembly has a thrust bearing mechanism with first and second thrust runners axially and rotationally secured to the shaft and located within a housing. First and second thrust receiving structures are rigidly mounted in the housing to receive thrust from the first and second thrust transferring devices. A deflectable member located in the first thrust transfer thrust device decreases in axial thickness in response to thrust of a selected level. The second thrust transfer thrust device has an axial length less than an axial distance from the second thrust receiving structure to the second thrust runner, defining an initial axial gap. During operation of the pump, the shaft and the first and second thrust runners move axially a limited extent, closing the gap and transferring thrust from the second thrust transfer device to the second thrust receiving structure.

公开(公告)号：US20170184098A1

公开(公告)日：2017-06-29

申请号：US15389488

申请日：2016-12-23

申请人： FLUID-O-TECH GROUP S.R.L.

发明人： Diego ANDREIS ,  Pierpaolo LUCCHESI

IPC分类号： F04C15/00 ,  F04C2/08

CPC分类号： F04C2/086 ,  F04C2/14 ,  F04C11/008 ,  F04C15/0042 ,  F04C2240/30

摘要： A container assembly (10) for a pump is described, provided with at least one pumping group (12, 14, 16, 18) and with at least one system (20) for transmitting power to such pumping group (12, 14, 16, 18). The container assembly (10) comprises at least one elastic element (26) sealingly housed inside such container assembly (10) at a predefined internal wall (28) thereof. Inside the elastic element (26), at least one cavity (32) is obtained which defines a corresponding air chamber configured for damping the variations of volume and the expansion of the fluid contained inside the pump following a possible change of state of the fluid itself when subjected to temperatures lower than its freezing point.

公开(公告)号：US20160363119A1

公开(公告)日：2016-12-15

申请号：US15150327

申请日：2016-05-09

申请人： Panasonic Corporation

发明人： TAKUMI HIKICHI

IPC分类号： F04C2/10 ,  F01K13/02 ,  F04C15/00

CPC分类号： F04C2/10 ,  F01K13/02 ,  F04C15/0042 ,  F04C15/008 ,  F04C23/008

摘要： A liquid pump in the present disclosure includes a pressure container, a shaft, a first bearing, a second bearing, a pump mechanism, and a thrust bearing. The internal space of the pressure container is partitioned into a high pressure side space and a low pressure side space. The shaft has a thrust supported face, one of both ends of the shaft is disposed in the high pressure side space, and the other of both ends of the shaft is disposed in the low pressure side space. The pump mechanism is disposed between the first bearing and the second bearing, and pumps liquid by rotation of the shaft. The thrust bearing is disposed to face the thrust supported face between the first bearing and the second bearing.

摘要翻译： 本公开的液体泵包括压力容器，轴，第一轴承，第二轴承，泵机构和止推轴承。 压力容器的内部空间被分隔成高压侧空间和低压侧空间。 轴具有推力支撑面，轴的两端之一设置在高压侧空间中，轴的两端中的另一端设置在低压侧空间。 泵机构设置在第一轴承和第二轴承之间，并且通过轴的旋转来泵送液体。 止推轴承设置成面对第一轴承和第二轴承之间的推力支撑面。

公开(公告)号：US09404493B2

公开(公告)日：2016-08-02

申请号：US14124850

申请日：2013-04-20

申请人： INDIAN INSTITUTE OF TECHNOLOGY MADRAS

发明人： Abdus Samad ,  Ramasamy Karthikeshwaran

IPC分类号： F04C2/107 ,  F16C17/18 ,  F04C15/00

CPC分类号： F04C2/107 ,  F04C2/1073 ,  F04C15/0042 ,  F04C2230/601 ,  F04C2230/605 ,  F04C2240/52 ,  F04C2240/56 ,  F04C2270/00 ,  F16C17/18 ,  F16C23/02 ,  F16C23/10 ,  F16C2360/42 ,  F16C2360/43

摘要： Techniques are generally described for a progressive cavity pump and methods for making and using a progressive cavity pump. In an example, a progressive cavity pump may include a stator, a rotor and/or a bearing. The stator may include a helical shaped interior with a first pitch. The rotor may be inside the stator. The rotor may include a helical shaped exterior with a second pitch. The second pitch may be different from the first pitch. The rotor may be effective to rotate with respect to the stator and effective to move eccentrically within the stator to define at least one cavity inside the stator. At least one bearing may be between the rotor and the stator. The bearing may be sized and shaped so that the rotor is effective to rotate inside the bearing and the bearing is effective to move eccentrically along with the rotor.

摘要翻译： 技术通常描述为渐进腔泵以及用于制造和使用渐进腔泵的方法。 在一个示例中，渐进腔泵可以包括定子，转子和/或轴承。 定子可以包括具有第一间距的螺旋状内部。 转子可能在定子内部。 转子可以包括具有第二间距的螺旋形外部。 第二间距可以与第一间距不同。 转子可以有效地相对于定子旋转并且有效地在定子内偏心移动以限定定子内部的至少一个空腔。 至少一个轴承可能位于转子和定子之间。 轴承的尺寸和形状可以使转子有效地在轴承内部旋转，并且轴承有效地与转子一起偏心运动。

公开(公告)号：US20150292468A1

公开(公告)日：2015-10-15

申请号：US14368222

申请日：2013-03-05

申请人： YUGEN KAISHA NAKANOSEISAKUSHO ,  NS CREATION LTD.

发明人： Kazuaki Nakano

IPC分类号： F03B5/00

CPC分类号： F03B5/00 ,  F03C2/30 ,  F04C15/0042 ,  F04C15/0061 ,  F04C2240/60 ,  F04D5/001 ,  Y02E10/20

摘要： A rotary drive apparatus includes a housing having a housing hole defined therein, a cylindrical rotor being disposed in the housing hole, a working fluid passage through which a working fluid for applying a fluid pressure to one end face of the rotor flows, a motion limiting unit configured to limit motion of the rotor toward another end thereof, and an output shaft configured to extract rotary power of the rotor out of the rotary drive apparatus. A predetermined gap for the working fluid to flow therethrough is created between an outer circumferential surface of the rotor and a wall surface defining the housing hole.

摘要翻译： 旋转驱动装置包括具有限定在其中的容纳孔的壳体，设置在容纳孔中的圆柱形转子，用于向转子的一个端面施加流体压力的工作流体流过的工作流体通道， 被配置为将转子的运动限制在另一端的单元，以及输出轴，其被配置为将转子的旋转动力提取出旋转驱动装置。 在转子的外周表面和限定容纳孔的壁表面之间产生用于工作流体流过的预定间隙。

公开(公告)号：US08821140B2

公开(公告)日：2014-09-02

申请号：US12769702

申请日：2010-04-29

申请人： Dan Paval ,  Ivan Polancec

发明人： Dan Paval ,  Ivan Polancec

IPC分类号： F04C15/00

CPC分类号： F04C2/16 ,  F04C15/0038 ,  F04C15/0042 ,  F04C15/0096 ,  F04C2210/24 ,  F04C2270/16

摘要： A gear pump having double-helical gears with bearing assembly seals and gear end seals which provided double seal interfaces between the pump cavity and bearing cups having disposed therein bearing assemblies for supporting pump shafts for rotation. The double seal interfaces preclude pumped fluid, particularly contaminated fluid including entrained abrasives from making contact with the bearing assemblies. An adjustable packing seal mechanism, a gear gap adjustment mechanism, a fluid pressure relief system, and pump heat exchanger features are also disclosed.

摘要翻译： 具有带有轴承组件密封件和齿轮端部密封件的双螺旋齿轮的齿轮泵，其在泵腔和轴承杯之间提供双重密封接口，其中设置有用于支撑用于旋转的泵轴的轴承组件。 双重密封接口排除泵送的流体，特别是污染的流体，包括夹带的磨料与轴承组件接触。 还公开了可调节的填料密封机构，齿轮间隙调节机构，流体压力释放系统和泵的热交换器特征。

公开(公告)号：US20140117748A1

公开(公告)日：2014-05-01

申请号：US14062056

申请日：2013-10-24

申请人： Nippon Soken, Inc. ,  DENSO CORPORATION ,  Advics Co., Ltd.

发明人： Kazunori Uchiyama ,  Naoki Hakamada ,  Kazuhide Uchida ,  Yasuhiro Kawase ,  Takahiro Yamaguchi ,  Tomoaki Kawabata ,  Kunihito Ando ,  Tadayoshi Usami

IPC分类号： B60T13/16 ,  F04C2/10

CPC分类号： B60T13/146 ,  F04C2/086 ,  F04C2/102 ,  F04C15/0019 ,  F04C15/0026 ,  F04C15/0042

摘要： A rotary pump has a linear groove formed on an end surface of a second side plate of an outer rotor. Thereby, it becomes possible to generate a force for pushing back the outer rotor to a sealing member side, and thus it becomes possible to reduce load applied to the second side plate. As a result, contact resistance between the outer rotor and the second side plate becomes smaller, and smoother pumping operation becomes possible. Further, since the force for pushing back the outer rotor to the first sealing member side is generated in the linear groove, it is possible to reduce an amount of decrease in a contacting area with the outer rotor and the second side plate, thereby reducing an amount of wear of the outer rotor and the second side plate.

摘要翻译： 旋转泵具有形成在外转子的第二侧板的端面上的直线槽。 由此，能够产生用于将外转子推回到密封构件侧的力，因此能够降低施加在第二侧板上的负荷。 结果，外转子和第二侧板之间的接触电阻变小，泵送操作变得更平滑。 此外，由于在直线槽中产生用于将外转子推回到第一密封构件侧的力，因此可以减少与外转子和第二侧板的接触面积的减小量，从而减少 外转子和第二侧板的磨损量。

公开(公告)号：US20130048384A1

公开(公告)日：2013-02-28

申请号：US13480080

申请日：2012-05-24

申请人： Brian P. Jarvis ,  Nigel Wilcox ,  Brian Williams ,  Lance Underwood ,  William Murray ,  Peter Thomas Cariveau ,  Geoffrey Downton ,  Lawrence Lee ,  Shunetsu Onodera ,  Daniel Alvarado ,  Maxim Pushkarev ,  Gokturk Tunc ,  Andrei Plop ,  Warren Askew

发明人： Brian P. Jarvis ,  Nigel Wilcox ,  Brian Williams ,  Lance Underwood ,  William Murray ,  Peter Thomas Cariveau ,  Geoffrey Downton ,  Lawrence Lee ,  Shunetsu Onodera ,  Daniel Alvarado ,  Maxim Pushkarev ,  Gokturk Tunc ,  Andrei Plop ,  Warren Askew

IPC分类号： E21B4/02 ,  E21B7/08 ,  F03C2/08 ,  E21B7/00

CPC分类号： F01C19/06 ,  E21B4/02 ,  F01C1/104 ,  F01C21/08 ,  F01C21/104 ,  F03C2/08 ,  F04C2/1071 ,  F04C13/008 ,  F04C15/0042 ,  F04C2240/80

摘要： A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.

摘要翻译： 诸如泥浆马达的运动腔马达或泵包括：转子，定子以及用于约束（即控制或限制）转子相对于定子运动的一个或多个装置。