公开(公告)号：US06599095B1

公开(公告)日：2003-07-29

申请号：US09959515

申请日：2001-10-29

Applicant: Noriyuki Takada ,  Takayuki Yamakawa ,  Hidetoshi Ryu ,  Tetsuo Kawano ,  Koji Kawamoto ,  Toshio Miyano ,  Richard L. Pratt ,  Brian Mackinnon

Inventor： Noriyuki Takada ,  Takayuki Yamakawa ,  Hidetoshi Ryu ,  Tetsuo Kawano ,  Koji Kawamoto ,  Toshio Miyano ,  Richard L. Pratt ,  Brian Mackinnon

IPC: F04B1924

CPC classification number: F04B47/02 ,  F04B49/065 ,  F04B2201/0202 ,  F04B2203/0201 ,  F04B2203/0204

Abstract: A pump off control method comprises detecting the speed of the induction motor and an instantaneous value of secondary current of the induction motor. Down stroke time in every cycle of the pump jack is detected. An average value of instantaneous values of the secondary current of the induction motor in the down stroke time in said every cycle is calculated. An average value reference of the secondary current of the induction motor to be compared with calculated average value of the instantaneous values of the secondary current of the induction motor is set. The calculated average value of the instantaneous values of the secondary current is compared with the average value reference after the down stroke end in each cycle. An occurence of pump off is detected if the calculated average value of the instantaneous values is greater than the average value reference.

Abstract translation: 抽油机控制方法包括检测感应电动机的速度和感应电动机的次级电流的瞬时值。 检测到泵千斤顶的每个周期的下降时间。 计算出所述每个周期中的下行时间内的感应电动机的次级电流的瞬时值的平均值。 设定与感应电动机的二次电流的瞬时值的计算平均值进行比较的感应电动机的次级电流的平均值基准。 将计算出的次级电流的瞬时值的平均值与在每个周期中的下行程结束之后的平均值参考值进行比较。 如果所计算的瞬时值的平均值大于平均值参考值，则检测到泵送的发生。

公开(公告)号：USRE35473E

公开(公告)日：1997-03-11

申请号：US392533

申请日：1995-02-23

Applicant: Edward A. Oakley ,  Harry K. Crow ,  Thomas M. Anderson ,  Richard T. Atherton ,  Berthold A. Fehn

Inventor： Edward A. Oakley ,  Harry K. Crow ,  Thomas M. Anderson ,  Richard T. Atherton ,  Berthold A. Fehn

IPC: F04B15/02 ,  F04B49/06 ,  G01F11/02 ,  F04B35/02

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

Abstract: A system for the transport of high solids sludge includes a positive displacement pump for pumping sludge through a pipeline. The volume of sludge transported is accurately measured by determining the fill percentage by using a material flow signal, measured time intervals, hydraulic fluid pressure, or hydraulic fluid flow rate during each pumping cycle.

Abstract translation: 用于运输高固体污泥的系统包括用于通过管道泵送污泥的容积式泵。 通过在每个泵送循环期间使用材料流动信号，测量的时间间隔，液压流体压力或液压流体流速来确定填充百分比来精确地测量输送的污泥的体积。

公开(公告)号：US5336055A

公开(公告)日：1994-08-09

申请号：US113841

申请日：1993-08-30

Applicant: Thomas M. Anderson

Inventor： Thomas M. Anderson

IPC: F04B15/02 ,  F04B49/06 ,  G01F11/02 ,  F04B35/02

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

Abstract: A system and method for controlling operation of a sludge material handling system is disclosed. The sludge material handling system includes a positive displacement piston/cylinder pump, a sludge material feed system which delivers sludge material to the pump, and a sludge material disposal system which receives and disposes of sludge material from the pump. A first parameter is sensed, the first parameter bearing a known relationship to an actual volume of sludge material delivered during a pumping cycle. An output value is determined from the first parameter. A control signal is provided as a function of the output value.

Abstract translation: 公开了一种用于控制污泥物料处理系统的操作的系统和方法。 污泥处理系统包括容积式活塞/气缸泵，将污泥材料输送到泵的污泥原料供给系统以及从泵接收和处理污泥物料的污泥物料处理系统。 感测到第一参数，第一参数与在泵送循环期间输送的污泥物料的实际体积具有已知关系。 根据第一个参数确定输出值。 作为输出值的函数提供控制信号。

公开(公告)号：US5257912A

公开(公告)日：1993-11-02

申请号：US981982

申请日：1992-11-24

Applicant: Edward A. Oakley ,  Harry K. Crow ,  Thomas M. Anderson ,  Richard T. Atherton ,  Berthold A. Fehn

Inventor： Edward A. Oakley ,  Harry K. Crow ,  Thomas M. Anderson ,  Richard T. Atherton ,  Berthold A. Fehn

IPC: F04B15/02 ,  F04B49/06 ,  G01F11/02 ,  F04B35/02

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

Abstract: A system for the transport of high solids sludge includes a positive displacement pump for pumping sludge through a pipeline. The volume of sludge transported is accurately measured by determining the fill percentage during pumping cycle.

Abstract translation: 用于运输高固体污泥的系统包括用于通过管道泵送污泥的容积式泵。 通过确定泵送循环期间的填充百分比来精确测量运输的污泥体积。

公开(公告)号：US12092096B2

公开(公告)日：2024-09-17

申请号：US17522850

申请日：2021-11-09

Applicant: Hydrocision, Inc.

Inventor： Mark Lewis ,  David E. Cassidy

IPC: F04B49/20 ,  F04B35/04 ,  F04B49/06

CPC classification number: F04B49/20 ,  F04B35/04 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202

Abstract: Provided for may be a motor speed control apparatus for use with a piston pump. The piston may be adapted to create a plurality of compressions and the piston may have a compression path and a decompression path. Further, the piston cylinder may include a proximal end, a distal end, and a piston length. The piston cylinder may have a proximal threshold position and a distal threshold position. In an embodiment, the apparatus includes a proximal and a distal hall effect sensor. The apparatus may comprise a computer, wherein instructions instruct the piston to decelerate at the distal threshold position during the compression path and the proximal threshold position during the decompression path, and/or wherein the computer executable instructions instruct the piston to accelerate at the distal threshold position during the decompression path and the proximal threshold position during the compression path.

公开(公告)号：US12005470B2

公开(公告)日：2024-06-11

申请号：US18231123

申请日：2023-08-07

Applicant: Robatech AG

Inventor： Andreas Hofer ,  Hanspeter Felix

IPC: B05C11/10 ,  B05C5/02 ,  F04B9/133 ,  F04B49/06

CPC classification number: B05C11/1002 ,  B05C5/02 ,  F04B9/133 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202

Abstract: A double-action piston pump of an application system for applying a fluid medium to a substrate, wherein the piston pump has a piston which is movable between a first reversal point and a second reversal point for delivering the fluid medium, wherein on reaching the first reversal point and the second reversal point, the movement direction of the piston is reversed, wherein during an output period, the fluid medium is output by means of an output device, and during an interruption period, an output of the fluid medium by means of the output device is interrupted, wherein during the interruption period, the movement direction of the piston is reversed, wherein on reversal of the movement direction during the interruption period, the piston is situated at an intermediate position between the first reversal point and the second reversal point.

公开(公告)号：US20240159227A1

公开(公告)日：2024-05-16

申请号：US18281028

申请日：2022-03-01

Applicant: Putzmeister Engineering GmbH

Inventor： Frederik KORT

IPC: F04B15/02 ,  F04B17/03 ,  F04B19/22

CPC classification number: F04B15/02 ,  F04B17/03 ,  F04B19/22 ,  F04B2201/0202 ,  F04B2201/0206 ,  F04B2201/0209 ,  F04B2203/0209 ,  F04B2205/18

Abstract: A method for operating a construction-material and/or viscous-material pump for conveying construction material and/or viscous material has the steps of: a) determining a required value of a power or of a size of the motor system, corresponding to the power, for moving the conveying piston, b) setting, on the basis of the required value, a speed value of the motor system in such a manner that a power and/or speed reserve value between an operating point, wherein the operating point is defined by the required value of the power or of the size and the speed value, and a characteristic curve of the motor system, wherein the characteristic curve is defined by maximum values of the power or of the size and speed values, wherein maximum values are different for different speed values at least in sections, is greater than or equal to a reserve limit value.

公开(公告)号：US11982269B2

公开(公告)日：2024-05-14

申请号：US17737277

申请日：2022-05-05

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: E21B43/12 ,  F04B9/113 ,  F04B27/02 ,  F04B35/00 ,  F04B47/04 ,  F04B49/12 ,  E21B4/00

CPC classification number: F04B49/12 ,  E21B43/126 ,  F04B9/113 ,  F04B27/02 ,  F04B35/00 ,  F04B47/04 ,  E21B4/00 ,  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：US11674508B2

公开(公告)日：2023-06-13

申请号：US17840948

申请日：2022-06-15

Applicant: PDC MACHINES, INC.

Inventor： Chris Turner ,  Guy Babbitt ,  Alex Beckerman ,  Bryce Whitehill ,  Garrett Casassa

IPC: F04B45/053 ,  F04B45/04 ,  F04B53/06 ,  F04B53/14

CPC classification number: F04B45/0533 ,  F04B45/043 ,  F04B45/053 ,  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：US20230146011A1

公开(公告)日：2023-05-11

申请号：US17522896

申请日：2021-11-09

Applicant: PDC MACHINES INC.

Inventor： Guy Babbitt ,  Chris Turner ,  Bryce Whitehill ,  Nicholas Echter ,  Jeffrey Rogers ,  Michael Sprengel ,  Noah Schaich ,  Kevin Best ,  Kyle Palmiscno ,  Alex Beckerman ,  Kareem Afzal ,  Christopher Basilico ,  Carl T. Johnson

IPC: F04B45/053 ,  F04B49/22

CPC classification number: F04B45/0533 ,  F04B45/0536 ,  F04B49/22 ,  F04B2201/0201 ,  F04B2201/0202

Abstract: Devices and methods for operating a diaphragm compressor. Embodiments of the present disclosure comprise an oil piston being driven to pressurize work oil against the diaphragm of the compressor. In embodiments, an injection pump provides a supplemental flow of work oil in the region of pressurized fluid, and such pump may be part of an actively controlled system. In embodiments, a pressure relief valve vents an overpump flow of work oil, and such valve may be variable. Embodiments provide feedback and control mechanisms, including control of the injection pump and the relief valve.