公开(公告)号：US09976555B2

公开(公告)日：2018-05-22

申请号：US14706791

申请日：2015-05-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Lon-Jay Cheng

IPC: F04C13/00 ,  E21B43/12 ,  F04C2/107 ,  F04C14/28

CPC classification number: F04C13/008 ,  E21B43/121 ,  E21B43/126 ,  F04C2/1071 ,  F04C14/28 ,  F04C2240/403 ,  F04C2270/035 ,  F04C2270/075 ,  F04C2270/72

Abstract: A control method is used with a control system to control a screw pump. The control system includes an electric motor and a motor drive. The control method includes following steps. Firstly, a DC bus voltage is monitored. If the DC bus voltage is smaller than a first threshold value, a potential energy stored in the pump screw and released by a backspin action is converted into a regenerative electrical energy so as to maintain a normal operation of the motor drive. Then, the motor drive drives the electric motor to control the backspin action of the screw pump according to a backspin torque limit strategy. If the electrical power from the power source is not restored and the level of a reverse regenerative torque is smaller than a preset torque value, the backspin action of the screw pump is stopped freely.

公开(公告)号：US09909715B2

公开(公告)日：2018-03-06

申请号：US14615890

申请日：2015-02-06

Applicant: Eaton Corporation

Inventor： Robert B Craft ,  Paul J. Mason ,  Jerry J. Brittan

IPC: F16N13/20 ,  F16N13/22 ,  F16H57/04 ,  F04C2/10 ,  F04C14/16 ,  F04C14/26 ,  F04C14/28 ,  F01M1/20 ,  F01M1/02

CPC classification number: F16N13/20 ,  F01M1/20 ,  F01M2001/0238 ,  F04C2/102 ,  F04C2/105 ,  F04C14/16 ,  F04C14/26 ,  F04C14/28 ,  F16H57/0404 ,  F16H57/0412 ,  F16H57/0435 ,  F16H57/0436 ,  F16N13/22

Abstract: This invention provides both a pump and a lubrication and cooling system with a pump which includes a pump housing, a rotor, a relief valve and a bypass valve. The relief valve is configured to relieve pump pressure when the pump pressure is indicative of an abnormal restriction of flow. The bypass valve is configured to direct fluid flow from an outlet chamber of the pump to an intake chamber of the pump when pressure in the outlet chamber is at a value associated with a predetermined speed of rotor rotation.

公开(公告)号：US20180011500A1

公开(公告)日：2018-01-11

申请号：US15545227

申请日：2016-03-02

Applicant: SONDERHOFF ENGINEERING GMBH

Inventor： Mario Metzler ,  Christian Schwabl ,  Günter Baldauf

IPC: G05D16/20 ,  F04C2/08 ,  F04C14/28 ,  B05C11/10 ,  B05C5/02

CPC classification number: G05D16/208 ,  B05C5/0225 ,  B05C11/1036 ,  F04B49/022 ,  F04C2/08 ,  F04C14/28

Abstract: A method and a device for compensating leakage losses in a line system, in which at least one positive displacement pump and at least one shut-off member are provided, wherein the method and device can be used for the isobaric metering of liquid plastic components and wherein the actual liquid pressure in the system is determined by way of a pressure measuring device and, when the shut-off member is closed is regulated to a pressure target value by actuation of the positive displacement pump, wherein the conveying loss rate of the positive displacement pump, which ensues to maintain the pressure target value when the shut-off member is closed is added to a target delivery rate in order to compensate for the leakage loss occurring at the corresponding pressure target value.

公开(公告)号：US20170083029A1

公开(公告)日：2017-03-23

申请号：US15311105

申请日：2015-07-08

Applicant: Illinois Tool Works Inc.

Inventor： Michael Surenbrock ,  Thomas Grupe

IPC: G05D7/06 ,  F04C14/28 ,  G01F25/00 ,  F04C2/14 ,  B05C5/02 ,  B05C11/10

CPC classification number: G05D7/0682 ,  B05B15/40 ,  B05C5/001 ,  B05C5/0279 ,  B05C11/1013 ,  B05C11/1042 ,  F04B23/04 ,  F04B51/00 ,  F04C2/14 ,  F04C14/28 ,  G01F25/0092 ,  G05D7/0652

Abstract: Disclosed is an apparatus (10) for the application of a liquid to viscous medium (42) onto an application surface (53), comprising a port (14) for providing a connection between the apparatus (10) and a supply of said liquid to viscous medium (42) upstream of the apparatus (10), at least two volumetric delivery pumps (23) for metering volumes of said medium, said volumetric delivery pumps (23) being located downstream of said port (14), each volumetric delivery pump (23) being in fluid connection with an application valve (25) of the apparatus (10), located downstream of the volumetric delivery pump (23) for passing a metered volume of the medium (42) from the delivery pump (23) to said application valve (25). It is characteristic that the apparatus (10) comprises a flow meter (13) in fluid connection with said volumetric delivery pumps (23), which flow meter (13) is located upstream of said volumetric delivery pumps (23).

公开(公告)号：US09482227B2

公开(公告)日：2016-11-01

申请号：US13850143

申请日：2013-03-25

Applicant: Weatherford Technology Holdings, LLC

Inventor： John Edward Stachowiak, Jr.

IPC: F04C13/00 ,  F04C14/28 ,  E21B17/10 ,  E21B33/08 ,  F04C2/107

CPC classification number: F04C13/005 ,  E21B17/1071 ,  E21B33/08 ,  F04C2/1071 ,  F04C13/008 ,  F04C14/28

Abstract: A wiper assembly may be used to prevent wellbore debris from entering an operating region of a pump. The wiper assembly may include a housing, a wiper member, a backing member, and a biasing member. The biasing member may bias the backing member into engagement with the wiper member, and thereby bias the wiper member into engagement with a tapered surface of the housing. The wiper member may include a corresponding tapered surface, which thereby forces the wiper member radially inward into engagement with an operating member of the pump.

Abstract translation: 刮水器组件可用于防止井筒碎屑进入泵的操作区域。 擦拭器组件可以包括壳体，擦拭器构件，背衬构件和偏置构件。 偏置构件可以将背衬构件偏置成与擦拭构件接合，从而将擦拭构件偏置成与壳体的锥形表面接合。 擦拭器构件可以包括相应的锥形表面，从而迫使擦拭器构件径向向内与泵的操作构件接合。

公开(公告)号：US20160041026A1

公开(公告)日：2016-02-11

申请号：US14826616

申请日：2015-08-14

Applicant: ITT Manufacturing Enterprises LLC.

Inventor： Anthony E. STAVALE

IPC: G01F25/00 ,  F04C18/16 ,  F04C28/28 ,  F04C2/16 ,  F04C14/28

CPC classification number: G01F25/0007 ,  F04C2/16 ,  F04C14/28 ,  F04C2240/403 ,  F04C2270/02 ,  F04C2270/03 ,  F04C2270/052 ,  F04C2270/20 ,  F04C2270/80 ,  G05D7/0676

Abstract: Techniques are provided for tuning a twin screw positive displacement pump having a signal processor with a signal processor to receive signaling containing information about actual pump performance data for actual rated conditions captured during a tuning function related to the operation of a twin screw positive displacement pump; and determine corrected pump performance data to operate the rotary positive displacement pump by compensating pump performance data being used for operating the twin screw positive displacement pump based at least partly on the actual pump performance data for the actual rated conditions captured during the tuning function. The corrected pump performance data includes corrected published pump performance data having a corrected published rated power and slip factor, and the actual pump performance data contains information about actual power, specific gravity and viscosity related to the operation of the twin screw positive displacement pump and received from a pump controller or controlling device, including a variable frequency drive.

Abstract translation: 提供了一种技术，用于调整具有信号处理器的双螺杆正排量泵，该信号处理器具有信号处理器以接收信号，该信号包含关于在与双螺杆正排量泵的操作相关的调谐功能期间捕获的实际额定条件的实际泵性能数据的信息; 并且通过补偿用于操作双螺杆正排量泵的泵性能数据来确定校正的泵性能数据以操作旋转容积式泵，至少部分地基于用于在调谐功能期间捕获的实际额定条件的实际泵性能数据。 经校正的泵性能数据包括经校正的公布的额定功率和滑移系数的经修正的公布的泵性能数据，并且实际的泵性能数据包含关于与双螺杆正排量泵的操作相关的实际功率，比重和粘度的信息 来自泵控制器或控制装置，包括变频驱动器。

公开(公告)号：US20160003244A1

公开(公告)日：2016-01-07

申请号：US14769351

申请日：2014-02-06

Applicant: WILO SE

Inventor： Guenter STRELOW ,  Thomas MUELLER ,  Roland STRACKE ,  Viktor WARKENTIN

IPC: F04C14/28 ,  F04C2/107

CPC classification number: F04C14/28 ,  F01C1/10 ,  F04C2/1075 ,  F04C2/1076 ,  F04C2250/30

Abstract: An eccentric screw pump comprising an outer part (2) and an inner part (3) therein, one of the parts (2, 3) being driven rotatably and the other part (2, 3) being able to move eccentrically relative to the other part (3, 2). The screwthreads (5a, 5b) of the outer part (2) extend angularly over less than an entire helix along the axial length (L) of the part, so that during operation pumping chambers that are open to both ends are created, through which sudden pressure relief takes place.

Abstract translation: 一种偏心螺杆泵，包括外部部件（2）和内部部件（3），所述部件（2,3）中的一个被可旋转地驱动，另一部分（2,3）能够相对于另一部分（2）偏心移动 部分（3，2）。 外部部分（2）的螺纹（5a，5b）沿着部件的轴向长度（L）成角度地延伸到小于整个螺旋上，使得在操作期间，产生对两端敞开的泵送室，通过其 突然泄压发生。

公开(公告)号：US06905317B2

公开(公告)日：2005-06-14

申请号：US10307489

申请日：2002-12-02

Applicant: Katsumi Hirabayashi ,  Ichiro Kimura ,  Hirotaka Kurita

Inventor： Katsumi Hirabayashi ,  Ichiro Kimura ,  Hirotaka Kurita

IPC: F01M1/16 ,  F01M1/02 ,  F04B41/00 ,  F04B49/00 ,  F04C14/26 ,  F04C14/28

CPC classification number: F04C14/26 ,  F04C14/28

Abstract: An oil pump apparatus includes a body, a first rotor and a second rotor disposed in the body so as to be able to rotate and a regulator valve mechanism for regulating the pressure of oil discharged to portions of an engine, wherein the regulator valve mechanism is disposed in the inside of the body and the engine and includes a regulator valve member which moves in the direction being in parallel with a rotation as of the first and second rotors in response to the discharged oil pressure.

Abstract translation: 油泵装置包括主体，第一转子和设置在本体中以便能够旋转的第二转子和用于调节排放到发动机部分的油的压力的调节阀机构，其中调节阀机构是 设置在车体和发动机的内部，并且包括调节阀构件，其响应于排出的油压而沿着与第一和第二转子相同的旋转平行的方向移动。

公开(公告)号：US20050079063A1

公开(公告)日：2005-04-14

申请号：US10627551

申请日：2003-07-25

Applicant: Joseph Zupanick ,  Monty Rial

Inventor： Joseph Zupanick ,  Monty Rial

IPC: E21B47/00 ,  F04C13/00 ,  F04C14/08 ,  F04C14/28 ,  F04B49/00

CPC classification number: F04C14/08 ,  E21B47/0007 ,  F04C13/008 ,  F04C14/28

Abstract: A fluid level controlled pumping system includes a pumping unit disposed within a fluid cavity. The pumping unit includes an inlet operable to receive a fluid to be pumped from the fluid cavity. The system also includes a valve slidably coupled to the pumping unit. The valve includes a passage for receiving pumped fluid from an outlet of the pumping unit. In response to a decreasing fluid level within the fluid cavity, movement of the valve relative to the pumping unit aligns the passage with a port of the pumping unit to recirculate the pumped fluid from the outlet to the inlet.

Abstract translation: 液位控制泵送系统包括设置在流体腔内的泵送单元。 泵送单元包括可操作以接收要从流体腔泵送的流体的入口。 该系统还包括可滑动地联接到泵送单元的阀。 阀包括用于从泵送单元的出口接收泵送流体的通道。 响应于流体腔内流体水平的降低，阀相对于泵送单元的移动将通道与泵送单元的端口对准，以将泵送的流体从出口再循环到入口。

公开(公告)号：US06863504B2

公开(公告)日：2005-03-08

申请号：US10292226

申请日：2002-11-12

Applicant: Robert R. Kimberlin ,  Robert E. Harvey, III

Inventor： Robert R. Kimberlin ,  Robert E. Harvey, III

IPC: F04C2/344 ,  F04C11/00 ,  F04C14/06 ,  F04C14/26 ,  F04C14/28 ,  F04C28/24 ,  F04D13/06 ,  F04D29/10 ,  F04D29/58 ,  H02K5/128 ,  F04B49/00

CPC classification number: F04C14/26 ,  F04B2201/0801 ,  F04B2203/0205 ,  F04C2/3446 ,  F04C11/008 ,  F04C14/06 ,  F04C14/28 ,  F04C28/24 ,  F04C2270/18 ,  F04C2270/19 ,  F04D13/0633 ,  F04D29/106 ,  F04D29/588 ,  H02K5/128

Abstract: A pump head for a fluid pump driven by a motor includes an inlet for receiving fluid at a first pressure and an outlet for outputting fluid at a second pressure greater than the first pressure. A relief valve cavity formed in the pump head housing includes a first portion in fluid communication with the inlet and a second portion in fluid communication with the outlet. A relief valve is disposed in the relief valve cavity with no portion of the relief positioned to block or otherwise impede the normal flow of fluid through the inlet or outlet. The relief valve is bi-directional and configured to operate in two modes including: (1) a low pressure relief mode where fluid flows from the inlet to the outlet when fluid pressure at the inlet exceeds fluid pressure at the outlet by a first threshold amount; and (2) a high pressure relief mode where fluid flows from the outlet to the inlet when fluid pressure at the outlet exceeds fluid pressure at the inlet by a second threshold amount greater than the first threshold amount. The relief valve cavity is specially configured to provide a barrier preventing an element of the relief valve from damaging the pump head in the event the relief valve element fails.

Abstract translation: 用于由马达驱动的流体泵的泵头包括用于在第一压力下接收流体的入口和用于以大于第一压力的第二压力输出流体的出口。 形成在泵头壳体中的安全阀腔体包括与入口流体连通的第一部分和与出口流体连通的第二部分。 安全阀设置在安全阀腔中，没有一部分释放件被定位成阻挡或以其它方式阻碍通过入口或出口的流体的正常流动。 安全阀是双向的并且构造成以两种模式操作，包括：（1）低压释放模式，其中当入口处的流体压力超过出口处的流体压力第一阈值时，流体从入口流到出口 ; 和（2）高压释放模式，其中流体在出口处的流体压力在出口处的流体压力超过入口处的流体压力超过第一阈值量的第二阈值量时从出口流到入口。 安全阀腔体是特别设计的，以防止溢流阀元件出现故障时防止溢流阀的元件损坏泵头。