公开(公告)号：US5112196A

公开(公告)日：1992-05-12

申请号：US631872

申请日：1990-12-21

Applicant: David N. Schuh

Inventor： David N. Schuh

IPC: F04B51/00 ,  G01M3/28 ,  G01M13/00

CPC classification number: G01M3/2876 ,  F04B51/00 ,  G01M13/005 ,  F04B2201/0201 ,  F04B2201/0205 ,  F04B2201/0208 ,  F04B2201/0605 ,  F04B2201/1208 ,  F04B2205/09

Abstract: A method and apparatus for analyzing the operating condition of a machine, such as a reciprocating compressor (10), is provided. The method comprises testing for fluid flow across the closed suction and discharge valves (30-33), as well as leakage across the piston (16), when the machine is in a non-operating condition. The test apparatus may be removable attached externally to the machine by connection to the Kiene head end indicator cock (22) and the crank end indicator cock (24) or the apparatus may be built in internally of the machine.

Abstract translation: 提供了用于分析诸如往复式压缩机（10）的机器的操作状态的方法和装置。 该方法包括当机器处于非操作状态时，测试穿过闭合的抽吸和排出阀（30-33）的流体流动以及穿过活塞（16）的泄漏。 测试装置可以通过连接到基诺头端指示器旋塞（22）和曲柄端指示器旋塞（24）而外部附接到机器，或者该设备可以内置在机器的内部。

公开(公告)号：US4665742A

公开(公告)日：1987-05-19

申请号：US763358

申请日：1985-08-07

Applicant: Jurgen Abt ,  Heins Bollhagen ,  Dieter Handtmann ,  Ulrich Kuhn ,  Sybille Stumpf

Inventor： Jurgen Abt ,  Heins Bollhagen ,  Dieter Handtmann ,  Ulrich Kuhn ,  Sybille Stumpf

IPC: F04B7/04 ,  F02M65/00 ,  F04B51/00 ,  G01M19/00

CPC classification number: F02M65/002 ,  F04B51/00 ,  F04B2201/0201 ,  F04B2201/0804 ,  F04B2203/0209 ,  F04B2203/0211 ,  F04B2205/01 ,  F04B2205/08 ,  F04B2205/09 ,  F04B2205/13

Abstract: A method for determining the closing point of a pump piston relative to a transverse bore in a corresponding pump cylinder, the method including the steps of providing compressed air to the cylinder via the transverse bore, axially sliding the pump piston near the closing point, consecutively measuring two flow values through a throttle cross-section defined by the pump piston and transverse bore, measuring the positions of the piston corresponding to the two flow values and extrapolating the pump piston unto the closing point from the flow values and piston positions.

Abstract translation: 一种用于确定泵活塞相对于相应泵缸中的横向孔的闭合点的方法，所述方法包括以下步骤：经由所述横向孔向所述气缸提供压缩空气，将泵活塞在闭合点附近轴向滑动 通过由泵活塞和横向孔限定的节流横截面测量两个流量值，测量对应于两个流量值的活塞的位置，并将泵活塞从流量值和活塞位置外推到关闭点。

公开(公告)号：US4180375A

公开(公告)日：1979-12-25

申请号：US913359

申请日：1978-06-07

Applicant: Haakon T. Magnussen, Jr.

Inventor： Haakon T. Magnussen, Jr.

IPC: B01D15/08 ,  B01D15/14 ,  F04B49/06 ,  F04B49/20 ,  G01N30/32 ,  G01N30/36 ,  F04B49/00

CPC classification number: B01D15/14 ,  F04B49/06 ,  F04B49/20 ,  G01N30/36 ,  F04B2201/0201 ,  G01N2030/326

Abstract: A fluid pump mechanism for delivering a smooth output of fluids to a system utilizing at least one piston in a chamber reciprocative therewithin. The piston has strokes that fill and empty the chamber in conjunction with the action of valve means located at the inlet and outlet of the chamber. Motive means causes reciprocation of the piston within the chamber. Control means is also included for minimizing the time during the piston cycle in which the piston is not emptying the chamber. The invention's scope also encompasses a pressure metering device for a fluid forcing means motivated by an electrical motor.

Abstract translation: 一种流体泵机构，用于将流体的平滑输出输送到系统中，利用在其中在其中往复运动的腔室中的至少一个活塞。 活塞具有与腔室入口和出口处的阀装置的作用一起填充和排空室的冲程。 动力装置引起活塞在腔室内的往复运动。 还包括控制装置以最小化在活塞未排空的活塞循环期间的时间。 本发明的范围还包括用于由电动机驱动的流体强制装置的压力计量装置。

公开(公告)号：US12110886B2

公开(公告)日：2024-10-08

申请号：US17798540

申请日：2021-02-26

Applicant: Illinois Tool Works Inc.

Inventor： Jonathan Jacob Bogasky ,  Edward Wayne Bolyard, Jr.

IPC: F04B51/00 ,  B05C5/02 ,  B05D5/10 ,  G01D5/14

CPC classification number: F04B51/00 ,  B05C5/0225 ,  B05D5/10 ,  G01D5/145 ,  F04B2201/0201

Abstract: A piston monitoring assembly includes a magnetic body coupled to a piston that is configured to move in opposite directions during a piston stroke to dispense a fluid, a magnetic sensor configured to output signals representative of a magnetic field generated by the magnetic body, and a controller configured to examine the signals output by the magnetic sensor and to determine whether the piston is moving far enough to ensure that the fluid is being dispensed during a first movement of the piston in the piston stroke and that the fluid is prevented from being dispensed during a second movement of the piston in the piston stroke.

公开(公告)号：US12072268B2

公开(公告)日：2024-08-27

申请号：US17496117

申请日：2021-10-07

Applicant: epro GmbH

Inventor： Michael Osterholt ,  Thomas Wewers ,  Tomasz Lech

IPC: G01M99/00 ,  F04B51/00 ,  F04B53/14 ,  G01B7/00

CPC classification number: G01M99/005 ,  F04B51/00 ,  F04B53/144 ,  G01B7/003 ,  F04B2201/0201 ,  F04B2201/021

Abstract: A machine monitoring system automatically determines an optimal trigger angle for monitoring the rod drop of a reciprocating compressor, and sets the trigger angle configuration value accordingly. A key pulse is monitored using a key phase sensor, the amplitude of the rod drop transducer voltage versus time (or rotation angle) is analyzed, and a position of the minimal change in slope of the rod drop transducer voltage signal relative to the key mark is determined. The optimal trigger angle is determined based on this temporal position, the current speed and the configured piston angle. The optimal trigger angle is provided to the machine monitoring system for configuration. The system thereby relieves the service engineer from having to test several trigger angles with manually-operated test instruments to determine the optimal trigger angle.

公开(公告)号：US11795794B2

公开(公告)日：2023-10-24

申请号：US17521520

申请日：2021-11-08

Applicant: Epic Lift Systems LLC

Inventor： Jason Williams

IPC: E21B34/06 ,  E21B43/12 ,  E21B43/40 ,  F04B47/02 ,  F04B47/12 ,  F04B49/06 ,  F04B53/12 ,  F04B9/127

CPC classification number: E21B43/122 ,  E21B34/066 ,  E21B43/40 ,  F04B9/1273 ,  F04B47/02 ,  F04B47/12 ,  F04B49/065 ,  F04B53/12 ,  F04B2201/0201 ,  F04B2207/043

Abstract: Systems and methods for controlling operation of a well, of which the method includes receiving an operation setting for operation of a system that provides lift gas into and produces gas from the well, monitoring operation of the system using a first controller, determining, using the first controller, that the system is not operating at the operation setting, and in response to determining that the system is not operating at the operation setting, sending, using a two-way communication link from the first controller to a second controller, a control signal to the second controller. The control signal is configured to cause the second controller to modify an operation of a compressor of the system.

公开(公告)号：US20180333527A1

公开(公告)日：2018-11-22

申请号：US15871014

申请日：2018-01-14

Applicant: Acer Incorporated ,  BENEPET CO., LTD.

Inventor： Chun-Hung Wen ,  Wei-Chen Lai ,  Pu-De Ciou ,  Wen-Pin Chang ,  Tsung-Hsun Wu ,  Wen-Shu Lee ,  Ta-Lun Tan

IPC: A61M1/28 ,  A61M1/10

CPC classification number: A61M1/282 ,  A61M1/1037 ,  A61M1/28 ,  A61M5/14216 ,  A61M5/1452 ,  A61M5/1684 ,  A61M5/31573 ,  A61M2005/31588 ,  A61M2205/3306 ,  A61M2205/3327 ,  A61M2205/3334 ,  A61M2205/3389 ,  F04B13/00 ,  F04B17/03 ,  F04B43/06 ,  F04B43/12 ,  F04B2201/0201

Abstract: A displacement sensing device is configured for a peritoneal dialysis system. The peritoneal dialysis system includes a housing and a syringe. The syringe is disposed on the housing and has a push rod. The displacement sensing device includes a guide rod, a probing module, and a resistance scale. The guide rod is coupled to the push rod, and the probing module is disposed in the housing and is fixed at the guide rod. The resistance scale is disposed at a side of the probing module. The probing module is configured to contact the resistance scale to obtain a resistance value of the resistance scale and determine a displacement magnitude of the push rod. In addition, a peritoneal dialysis system is also mentioned.

公开(公告)号：US10072652B2

公开(公告)日：2018-09-11

申请号：US14343475

申请日：2012-09-10

Applicant: Timothy S. Roman ,  Greg T. Mrozek

Inventor： Timothy S. Roman ,  Greg T. Mrozek

IPC: F04B49/12 ,  F04B17/03 ,  F04B49/06

CPC classification number: F04B49/12 ,  F04B17/03 ,  F04B49/06 ,  F04B2201/0201 ,  F04B2203/0209

Abstract: A pump system comprises an electric motor, a pump, a converter and a controller. The electric motor has a rotational output shaft that is rotatable in a first rotational direction and an opposite second rotational direction. The pump has a linearly displaceable input shaft that is movable in a first linear direction and an opposite second linear direction. The converter couples the output shaft to the input shaft such that rotation of the output shaft in the first rotational direction translates the input shaft in the first linear direction, and rotation of the output shaft in the second rotational direction translates the input shaft in the second linear direction. The controller repeatedly reverses rotation of the output shaft to produce reciprocating motion of the input shaft.

公开(公告)号：US09983076B2

公开(公告)日：2018-05-29

申请号：US14828706

申请日：2015-08-18

Applicant: BODE ENERGY EQUIPMENT CO., LTD.

Inventor： Min Zhao

IPC: G01L5/00 ,  H02J7/35 ,  E21B43/12 ,  E21B47/00 ,  F04B17/00 ,  F04B47/02 ,  F04B49/06

CPC classification number: G01L5/00 ,  E21B43/127 ,  E21B47/0008 ,  F04B17/006 ,  F04B47/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/121 ,  F04B2201/1211 ,  H02J7/35 ,  Y02E10/566 ,  Y02P80/158

Abstract: An adapter for a load cell in a rod pump system includes an outer shell including a mounting portion configured to attach to the load cell on a polished rod, a power supply configured to provide power to the adapter and the load cell, the power supply including a solar panel on the outer shell, a cable configured to connect to the load cell, the adapter configured to provide power to the load cell via the cable, and the adapter configured to receive a load signal from the load cell via the cable, a signal processor configured to receive and process the load signal and to output load signal data representative of a load experienced by the load cell, and a wireless transmitter to transmit the load signal data.

公开(公告)号：US20180100496A1

公开(公告)日：2018-04-12

申请号：US15287416

申请日：2016-10-06

Applicant: Caterpillar Inc.

Inventor： Yanchai Zhang ,  Venkata Bhagavathi Dandibhotla ,  Zhijun Cai ,  Zhaoxu Dong ,  Xuefei Hu

IPC: F04B51/00 ,  F04B1/00 ,  F04B53/10 ,  G01M3/26

CPC classification number: F04B51/00 ,  F04B1/00 ,  F04B53/10 ,  F04B2201/0201 ,  F04B2205/04 ,  G01M3/26

Abstract: A method for detecting a leak in a pump comprises: monitoring discharge pressure time domain signals of the pump; monitoring piston position time domain signals for each piston of a plurality of pistons; filtering the monitored discharge pressure time domain signals and the monitored piston position time domain signals of each piston of the plurality of pistons via a band pass filter; determining, at each pump revolution for each piston, a sum of product of the filtered discharge pressure time domain signals and the filtered piston position time domain signals; determine, at each pump revolution for each piston, an absolute value of each sum; determining, at each pump revolution, a largest absolute value of the determined absolute values; determining a corresponding piston of the plurality of pistons associated with the largest absolute value; and determining a cylinder of the pump associated with the determined corresponding piston as leaking.