公开(公告)号：US20020093327A1

公开(公告)日：2002-07-18

申请号：US09989396

申请日：2001-11-21

Applicant: LG Electronics, Inc.

Inventor： Yoo Jae Yoo ,  Jae Chun Lee ,  Min Kyu Hwang ,  Chel Woong Lee

IPC: G01R023/00 ,  G01R023/12

CPC classification number: F04B35/045 ,  F04B49/065 ,  F04B2201/0202 ,  F04B2203/0201 ,  F04B2203/0202

Abstract: An apparatus for detecting shaking of stroke of a linear compressor and a method are provided. A linear compressor mis-operates due to change in an external voltage or noise because the shaking of the stroke is detected by the amounts of change in the stroke or current. In order to solve the above problem, a control apparatus of a compressor includes a stroke/current phase difference calculator for calculating the phase differences of the stroke and current using the stroke and the current, which are determined by the increase and the reduction of the stroke due to the voltage generated by a linear compressor, a phase difference change amount calculator for calculating phase difference change amounts using the calculated phase differences of the stroke and the current, a shaking detector for comparing the calculated phase difference change amounts with a reference value for determining whether the shaking of the stroke is detected, to thus determine the shaking of the stroke, and a stroke controller for receiving a stroke shaking detection signal from the stroke shaking detector and changing the stroke voltage according to the magnitude of the request of cooling capacity, which is determined by the change in load, to thus control the driving of the linear compressor, during the operation of the linear compressor.

Abstract translation: 提供了一种用于检测线性压缩机的行程抖动的装置和方法。 线性压缩机由于外部电压或噪声的变化而失灵，因为行程的振动是通过行程或电流的变化量来检测的。 为了解决上述问题，压缩机的控制装置包括行程/电流相位差计算器，用于计算使用行程和电流的行程和电流的相位差，这是通过增加和减少确定的 由线性压缩机产生的电压引起的行程;相位差变化量计算器，用于使用计算出的行程和电流的相位差计算相位差变化量;振动检测器，用于将计算出的相位差变化量与参考值进行比较 用于确定是否检测到行程的振动，从而确定行程的晃动;以及行程控制器，用于从行程抖动检测器接收行程抖动检测信号，并根据冷却请求的大小改变行程电压 容量，由负载变化决定，从而控制李的驾驶 在压缩机附近，在线性压缩机运行期间。

公开(公告)号：US5674281A

公开(公告)日：1997-10-07

申请号：US594042

申请日：1996-01-30

Applicant: Alan J. Snyder

Inventor： Alan J. Snyder

IPC: A61M1/10 ,  F04B43/09 ,  F04B49/06

CPC classification number: A61M1/1086 ,  A61M1/1049 ,  F04B43/09 ,  F04B49/065 ,  A61M1/1037 ,  F04B2201/0202 ,  F04B2203/0209

Abstract: An artificial heart assembly, designed for implantation into a subject, which may be a total artificial heart or a ventricular assist device. The heart assembly has a blood inlet conduit, a blood outlet conduit, a pumping mechanism for pumping blood from the blood inlet conduit to the blood outlet conduit, and means for reversibly driving the pumping mechanism in a opposite directions over a stroke having a length defined by a pair of endpoints. The driving means has a motor which is braked by a braking means which has means for determining the actual speed of the pumping mechanism, means for comparing the actual speed of the pumping mechanism with a braking speed, and means for selectively applying the brake to the motor based upon the relative magnitudes of the actual speed and the braking speed.

Abstract translation: 设计用于植入受试者的人造心脏组件，其可以是总人造心脏或心室辅助装置。 心脏组件具有血液入口导管，血液出口导管，用于将血液从血液入口导管泵送到血液出口管道的泵送机构，以及用于在具有长度定义的冲程上沿相反方向可逆地驱动泵送机构的装置 通过一对端点。 驱动装置具有由制动装置制动的电动机，该制动装置具有用于确定泵送机构的实际速度的装置，用于将泵送机构的实际速度与制动速度进行比较的装置，以及用于选择性地将制动器施加到 电机基于实际速度和制动速度的相对大小。

公开(公告)号：US5507624A

公开(公告)日：1996-04-16

申请号：US365514

申请日：1994-12-28

Applicant: Berthold A. Fehn

Inventor： Berthold A. Fehn

IPC: F04B13/00 ,  F04B15/02 ,  F04B49/06 ,  G01F11/02 ,  F04B53/00

CPC classification number: G01F11/029 ,  F04B13/00 ,  F04B15/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0209 ,  F04B2201/06012 ,  F04B2201/1204 ,  F04B2203/0901 ,  F04B2203/0902 ,  F04B2203/0903 ,  F04B2203/091 ,  F04B2205/05 ,  Y10S417/90

Abstract: The present invention is a sludge pump system which includes a means for monitoring operation of a sludge pump. The sludge pump includes a material cylinder and a piston moveable in the material cylinder. A pump drive moves the piston during working cycles which include a pumping stroke and a filling stroke. A pump valve mechanism connects the material cylinder to an outlet during pumping strokes and connects the material cylinder to an inlet during filling strokes. A means for monitoring operation of the pump is provided. The means for monitoring includes a means for sensing a first parameter related to operation of the pump drive, a means for sensing a second parameter indicative of operation of the piston, and a means for determining errors in the operation of the pump based upon the first parameter and the second parameter.

Abstract translation: 本发明是一种污泥泵系统，其包括用于监测污泥泵的操作的装置。 污泥泵包括可在料筒中移动的料筒和活塞。 泵驱动器在包括泵送冲程和填充冲程的工作循环期间移动活塞。 泵阀机构在泵送冲程期间将材料筒连接到出口，并且在填充冲程期间将材料筒连接到入口。 提供了一种用于监测泵的操作的装置。 用于监测的装置包括用于感测与泵驱动器的操作相关的第一参数的装置，用于感测指示活塞的操作的第二参数的装置，以及用于基于第一个来确定泵的操作中的误差的装置 参数和第二个参数。

公开(公告)号：US5257914A

公开(公告)日：1993-11-02

申请号：US903341

申请日：1992-06-24

Applicant: Steven M. Reynolds

Inventor： Steven M. Reynolds

IPC: F04B43/067 ,  F04B43/073 ,  G01P3/54 ,  F04B49/00

CPC classification number: F04B43/067 ,  F04B43/0736 ,  G01P3/54 ,  F04B2201/0201 ,  F04B2201/0202

Abstract: A pump control interface for use in a diaphragm pump including at least one diaphragm adapted to move between a suction stroke and a discharge stroke during operation of the pump. A diaphragm follower is connected for movement with the diaphragm during operation of the pump. A sensor mechanism is provided for sensing at least the position and rate of movement of the diaphragm by sensing the position and rate of movement of the diaphragm follower. In one embodiment, the control interface is provided as a rod interconnecting two diaphragms of a dual diaphragm pump for synchronous movement. A plurality of conductive targets are disposed on the rod, and a proximity switch is mounted adjacent to the rod, in order to produce pulsed output signals when in proximity with the conductive targets.

公开(公告)号：US20240203218A1

公开(公告)日：2024-06-20

申请号：US18593250

申请日：2024-03-01

Applicant: OP-Hygiene IP GmbH

Inventor： Heiner OPHARDT ,  Andrew JONES

IPC: G08B3/06 ,  A47K5/12 ,  A47K5/14 ,  B05B1/00 ,  B05B11/00 ,  B05B11/10 ,  F04B19/00 ,  F04B23/02 ,  G01F11/02 ,  G01F13/00

CPC classification number: G08B3/06 ,  A47K5/1207 ,  A47K5/1217 ,  A47K5/14 ,  B05B1/002 ,  B05B11/0059 ,  B05B11/1001 ,  B05B11/1087 ,  F04B19/00 ,  G01F11/021 ,  B05B11/108 ,  F04B23/02 ,  F04B2201/0202 ,  F04B2201/0206 ,  G01F13/00

Abstract: A fluid dispenser with a fluid pump for dispensing fluid on movement of an actuator, and an air pump for delivering a stream of air through at least one sound generator on movement of the actuator. The sound generator produces at least two sounds as the actuator is moved from a first position to a second position, with each sound produced in a different time period during a cycle of operation, or differing from the other sound in respect of one or more detectable sound characteristics, such as duration, frequency, temporal alignment, amplitude, and/or timbre. The time period of each sound is a function of the relative location of the actuator between the first and second positions.

公开(公告)号：US11867169B2

公开(公告)日：2024-01-09

申请号：US17840919

申请日：2022-06-15

Applicant: PDC MACHINES, INC.

Inventor： Guy Babbitt ,  Garrett Casassa ,  Bryce Whitehill ,  Alex Beckerman ,  Kristina Weyer ,  Chris Turner ,  Kareem Afzal ,  Christopher Basilico

IPC: F04B45/04 ,  F04B45/053 ,  F04B53/06 ,  F04B53/14 ,  F04B43/073 ,  F04B49/22

CPC classification number: F04B45/0533 ,  F04B43/073 ,  F04B45/043 ,  F04B45/053 ,  F04B45/0536 ,  F04B49/22 ,  F04B53/06 ,  F04B53/14 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2205/05

Abstract: Devices and methods for operating a diaphragm compressor system provide high output pressure and high throughput. In some embodiments, modular diaphragm compressors are stacked with a clamping mechanism pressing the compressor modules together. In embodiments, multiple stacks are provided as stages of a pressurization process. In embodiments, a main stage valve controls one or more pressure circuits for one or more hydraulic actuators of compressor modules. In embodiments, orifices configured for damping are incorporated to control actuator piston movement within a compressor module.

公开(公告)号：US10001119B2

公开(公告)日：2018-06-19

申请号：US15203346

申请日：2016-07-06

Applicant: Whirlpool S.A.

Inventor： Dietmar Erich Bernhard Lilie ,  Paulo Sergio Dainez

IPC: F04B35/04 ,  F04B49/06 ,  F04B39/00 ,  F04B39/02 ,  F04B53/10

CPC classification number: F04B49/06 ,  F04B35/04 ,  F04B35/045 ,  F04B39/0005 ,  F04B39/0027 ,  F04B39/023 ,  F04B49/065 ,  F04B53/10 ,  F04B2201/0202 ,  F04B2203/0402

Abstract: A method for protecting a resonant linear compressor (14) including structural resonance frequencies (wE) and a motor that is fed by feed voltage (Va) that has amplitude (A) and a drive frequency (wA), both controlled according to the equation A·sin(wt). The protection method is configured so as to include the step of preventing feed to the motor at drive frequencies (wA) that have at least one harmonic coinciding tithe the structural resonance frequency (wE) of the resonant linear compressor (14). A protection system of a resonant linear compressor (14) includes an electronic control (30) configured to prevent feed to the motor at the drive frequencies (wA) that have at least one harmonic coinciding with the structural resonance frequency (wE) of the resonant linear compressor (14).

公开(公告)号：US20180119692A1

公开(公告)日：2018-05-03

申请号：US15338350

申请日：2016-10-29

Applicant: KELVIN, INC.

Inventor： David BANGOR ,  Logan DUFFY ,  Adam GUETZ ,  Tim JACKSON ,  Robbie PRATT ,  Peter HARDING ,  Niall WELLS

IPC: F04B49/22 ,  E21B43/12 ,  F04B47/12 ,  E21B47/00 ,  G01V1/52

CPC classification number: F04B49/22 ,  E21B43/123 ,  E21B47/0007 ,  F04B47/02 ,  F04B47/12 ,  F04B49/065 ,  F04B2201/0202 ,  G01H1/00 ,  G01V1/52

Abstract: A method of probabilistically estimating a velocity of a plunger of a beam pump may comprise continuously monitoring well acoustics using a plurality of passive acoustic sensors attached to external structures of the beam pump; digitizing outputs of the plurality of passive acoustic sensors and sending the digitized outputs to a computing device for storage and processing; and using the digitized outputs of the plurality of passive acoustic sensors, estimating a probability of the velocity of the plunger using a hidden Markov model (HMM) to represent a probability of a position and the probability of the velocity of the plunger, the HMM comprising a state space model and an observational model.

公开(公告)号：US20180073497A1

公开(公告)日：2018-03-15

申请号：US15822035

申请日：2017-11-24

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: F04B49/00 ,  F04B47/04 ,  E21B41/00 ,  F04B35/00

CPC classification number: F04B49/002 ,  E21B4/00 ,  E21B43/126 ,  F04B9/113 ,  F04B27/02 ,  F04B35/00 ,  F04B47/04 ,  F04B49/12 ,  F04B2201/0202 ,  F04B2201/121 ,  F04B2203/09

Abstract: Methods and systems are provided to adaptively control a hydraulic fluid supply to supply a driving fluid for applying a driving force on a piston in a gas compressor, the driving force being cyclically reversed between a first direction and a second direction to cause the piston to reciprocate in strokes. During a first stroke of the piston, a speed of the piston, a temperature of the driving fluid, and a load pressure applied to the piston is monitored. Reversal of the driving force after the first stroke is controlled based on the speed, load pressure, and temperature.

公开(公告)号：US20170363079A1

公开(公告)日：2017-12-21

申请号：US15628013

申请日：2017-06-20

Applicant: TECAT PERFORMANCE SYSTEMS, LLC

Inventor： DOUGLAS M. BAKER

IPC: F04B49/06 ,  E21B43/34 ,  F04B47/02 ,  F16H61/06

CPC classification number: F04B49/065 ,  E21B47/0008 ,  F04B47/02 ,  F04B47/022 ,  F04B49/02 ,  F04B51/00 ,  F04B2201/0202 ,  F04B2201/121

Abstract: An integrated wireless data system and method for controlling and measuring operational data of a pumpjack system, for safety, health monitoring, and pump control is provided. The integrated wireless data system and method may be configured to allow for bi-directional communication with a central station to enable human intervention with pumpjack and to store pump parameters in a database for use in development of predictive maintenance techniques.