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101.发明授权
公开(公告)号：US5251696A
公开(公告)日：1993-10-12
申请号：US863838
申请日：1992-04-06
Applicant: James R. Boone , Larry D. Best , Ronnie D. Brown
Inventor： James R. Boone , Larry D. Best , Ronnie D. Brown
CPC classification number: F04B47/022 , E21B43/127 , F04B2201/0202
Abstract: A method and apparatus for Varying the speed of operations of an oil well pumping unit powered by a motor wherein variations in oil viscosity may be efficiently accommodated. An oil well pumping unit which includes a submersible pump actuated by means of a reciprocating string of sucker rods is monitored for both rod position and load present on the sucker rods. The oil well pumping unit is driven by an electric or gas motor through a controllable coupling and the speed of the oil well pumping unit is then varied, utilizing the controllable coupling, in response to variations in sucker rod load. As the lowering of the sucker rod is impeded by high viscosity oil, the load on the sucker rod decreases. This decrease in sucker rod load is utilized to decrease the speed of the oil well pumping unit by means of the controllable coupling to ensure that bridle separation does not occur. Additionally, increases in sucker rod load above a preselected maximum may also be detected and utilized to slow the operation of the oil well pumping unit to prevent damage to the sucker rods.
Abstract translation: 一种用于改变由电动机驱动的油井泵送单元的操作速度的方法和装置，其中可以有效地容纳油粘度的变化。 监测油井泵送单元，其包括通过抽油杆的往复式串联致动的潜水泵，用于吸杆上存在的杆位置和负载。 油井泵送单元由电气或气体马达通过可控制的联接器驱动，然后根据抽油杆负载的变化利用可控制的联接来改变油井泵送单元的速度。 随着吸油杆的降低受到高粘度油的阻碍，吸盘上的载荷减小。 抽油杆负载的这种减少用于通过可控制的联接来降低油井泵送单元的速度，以确保不会发生叉车分离。 此外，也可以检测并利用抽油杆负载高于预定最大值的增加，以减缓油井泵送装置的操作，以防止对抽油杆的损坏。
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公开(公告)号：US12025118B2
公开(公告)日：2024-07-02
申请号：US18136941
申请日：2023-04-20
Applicant: PDC MACHINES, INC.
Inventor： Chris Turner , Guy Babbitt , Alex Beckerman , Bryce Whitehill , Garrett Casassa
IPC: F04B45/053 , F04B43/073 , F04B45/04 , F04B49/22 , F04B53/06 , F04B53/14
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.
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公开(公告)号：US20240200550A1
公开(公告)日：2024-06-20
申请号：US18516210
申请日：2023-11-21
Applicant: PDC MACHINES, INC.
Inventor： Guy Babbitt , Garrett Casassa , Bryce Whitehill , Alex Beckerman , Kristina Weyer , Chris Turner , Kareem Afzal , Christopher Basilico
IPC: F04B45/053 , F04B43/073 , F04B45/04 , F04B49/22 , F04B53/06 , F04B53/14
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.
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公开(公告)号：US12011211B2
公开(公告)日：2024-06-18
申请号：US16586421
申请日：2019-09-27
Applicant: Biosense Webster (Israel) Ltd.
Inventor： Yehuda Algawi , Assaf Govari , Gili Attias , Ilya Sitnitsky
CPC classification number: A61B18/1492 , A61M3/0202 , A61M3/0258 , F04B49/20 , A61B2018/00029 , A61B2018/00351 , A61B2018/00577 , A61B2018/00744 , F04B2201/0202
Abstract: A pump includes a cylinder, a piston and a controller. The cylinder has first and second ends and includes first and second inlet-outlet ports, each of the first and second inlet-outlet ports is configured to alternately intake a fluid to the cylinder and output the fluid from the cylinder. The piston is configured to be moved within the cylinder between the first and second ends by alternately reversing a direction of movement of the piston, so as to pump the fluid through the first and second inlet-outlet ports. The controller is configured to control the movement of the piston within the cylinder, including: (a) choosing between first and second operational modes, (b) in the first operational mode, controlling the piston to oscillate over a predefined interval that does not exceed a predefined distance from the first end or from the second end, and (c) in the second operational mode, controlling the piston to move at a selected speed between the first end and the second end.
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公开(公告)号：US11959469B2
公开(公告)日：2024-04-16
申请号：US17637351
申请日：2020-08-20
Applicant: Putzmeister Engineering GmbH
Inventor： Carl Wiesenack , Benjamin Hoelzle , Michael Schaefer , Wolf-Michael Petzold , Jan-Martin Veit , Wilhelm F. Hofmann
CPC classification number: F04B15/02 , F04B9/113 , F04B51/00 , F04B49/065 , F04B49/103 , F04B2201/0202
Abstract: A method monitors the state of a device having a first drive cylinder for receiving hydraulic fluid and a first drive piston which is movably arranged in the first drive cylinder. The method determines a speed of the first drive piston, establishes a difference between the determined speed of the first drive piston and an expected speed of the first drive piston, and determines a faulty state as a function of the difference established between the determined speed of the first drive piston and the expected speed of the first drive piston.
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Patent Agency Ranking
公开(公告)号：US11766693B2
公开(公告)日：2023-09-26
申请号：US17244879
申请日：2021-04-29
Applicant: Robatech AG
Inventor： Andreas Hofer , Hanspeter Felix
CPC classification number: B05C11/1002 , B05C5/02 , F04B9/133 , F04B49/065 , F04B2201/0201 , F04B2201/0202
Abstract: A method for operating 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.
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公开(公告)号：US20230258168A1
公开(公告)日：2023-08-17
申请号：US18136941
申请日：2023-04-20
Applicant: PDC MACHINES, INC.
Inventor： Chris Turner , Guy Babbitt , Alex Beckerman , Bryce Whitehill , Garrett Casassa
IPC: F04B45/053 , F04B53/06 , F04B53/14 , F04B45/04
CPC classification number: F04B45/0533 , F04B53/06 , F04B53/14 , F04B45/043 , F04B45/053 , 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.
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公开(公告)号：US20180128225A1
公开(公告)日：2018-05-10
申请号：US15566686
申请日：2016-04-13
Applicant: Mitsui Engineering & Shipbuilding Co., Ltd.
Inventor： Makoto Kounosu , Seiichi Kitamura , Renzo Kanda
CPC classification number: F02M59/08 , F02M59/10 , F02M59/105 , F02M59/20 , F02M59/26 , F02M59/30 , F02M2200/245 , F04B9/105 , F04B13/00 , F04B15/08 , F04B49/065 , F04B49/12 , F04B53/10 , F04B2201/0202 , F04B2201/0206 , F04B2201/0209 , F04B2201/0601 , F04B2203/09
Abstract: A fuel supply device includes: a linear actuator; a reciprocating pump having a boosting piston driven by the linear actuator and configured to reciprocate in an axial direction, the reciprocating pump being configured to suck the fuel when the boosting piston moves in a first direction and configured to boost and eject the fuel when the boosting piston moves in a second direction; and a controller configured to control driving of the linear actuator so as to adjust an amount of the fuel ejected from a boosting cylinder per reciprocating time by adjusting a ratio of a fuel ejection time and a fuel suction time of the reciprocating pump without changing the reciprocating time of the boosting piston in accordance with a load of the internal combustion engine. The adjustment adjusts a stroke length of the boosting piston and a moving speed of the boosting piston in the second direction.
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公开(公告)号：US09926925B2
公开(公告)日：2018-03-27
申请号：US14477288
申请日：2014-09-04
Applicant: Schwing Bioset, Inc.
Inventor： Charles M. Wanstrom , Thomas M. Anderson , Shahzad M. Khan , Michael M. Mott
CPC classification number: F04B51/00 , F04B15/00 , F04B15/02 , F04B2201/0201 , F04B2201/0202
Abstract: A sludge flow monitoring system and method measures volume of sludge pumped by a positive displacement pump through a pipeline by determining a fill percentage during each pumping cycle. The start and end of each piston stroke are identified by hydraulic system sensors. The fill percentage is determined based upon a first summation of periodic piston speed command values from the start of a pumping stroke to the end of a pumping stroke, and a second summation of periodic piston speed command values from a poppet valve opening indicating output flow from the pump to the end of the pumping stroke.
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公开(公告)号：US09915260B2
公开(公告)日：2018-03-13
申请号：US15291613
申请日：2016-10-12
Inventor： Paulo Sergio Dainez , Jose de Oliveira , Ademir Nied
IPC: F04B49/06 , F04B51/00 , F04B53/14 , H02P27/08 , F04B53/00 , H02K7/14 , H02P25/32 , F04B35/04 , F04B49/10 , H02K33/16 , H02P25/032
CPC classification number: F04B49/065 , F04B35/04 , F04B35/045 , F04B49/06 , F04B49/103 , F04B51/00 , F04B53/003 , F04B53/14 , F04B2201/0202 , F04B2201/0206 , F04B2203/0409 , H02K7/14 , H02K33/16 , H02P25/032 , H02P27/08
Abstract: A control method and a system for controlling the piston of a resonant linear compressor including at least one electronic control unit, the electronic control unit including at least one observing electronic circuit and at least one control circuit associated to each other. The observing electronic circuit is configured for: measuring at least one electric magnitude of the electric motor; estimating at least one set of electric parameters and at least one set of mechanical parameters of the resonant linear compressor; and estimating and providing at least one control parameter of the system for the control circuit based on the measured electric magnitude measured and on the estimated set of electric and mechanical parameters. The control circuit is configured for actuating the electric motor from the at least one control parameter.
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