-
公开(公告)号：US5450743A
公开(公告)日：1995-09-19
申请号：US179406
申请日：1994-01-10
Applicant: William J. Buote
Inventor： William J. Buote
CPC classification number: G01N30/32 , F04B49/065 , F04B2201/0202 , F04B2201/0206 , G01N2030/027 , G01N2030/324 , G01N2030/326
Abstract: A method of operating liquid chromatography apparatus. The method includes the steps of determining a given rate of liquid flow desired from a piston pump to the column; establishing for the piston a predetermined stroke length and rate of reciprocation for providing the given rate of liquid flow; determining for each cycle of the pump a desired liquid volume that would be delivered to the column by the pump if producing the given rate of liquid flow; ascertaining for each cycle of the pump the actual liquid volume delivered thereby to the column; determining for a predetermined operating period of the pump the total desired liquid volume that would have been delivered to the column by the pump if producing the given rate of liquid flow during each cycle of the predetermined operating period; and determining the total actual liquid volume delivered to said column by said pump during all cycles of said predetermined operating period. After comparing the total desired liquid volume with the total actual liquid volume one or more subsequent piston cycles are produced that provide a compensating liquid flow rate different than the given rate of liquid flow in response to a determination during the comparing step that a difference exists between the total actual liquid volume and the total desired liquid volume. The compensating rates of liquid flow correct pumping cycle errors that produce incorrect liquid volume flow.
Abstract translation: 一种操作液相色谱仪的方法。 该方法包括以下步骤：确定从活塞泵到柱的期望的给定液体流速; 为活塞建立预定行程长度和往复运动速率以提供给定的液体流速; 确定泵的每个循环的期望液体体积，如果产生给定的液体流速，将被泵输送到塔中; 确定泵的每个循环，由此输送到塔的实际液体体积; 在泵的预定操作周期中，如果在预定操作周期的每个循环期间产生给定的液体流量，则确定泵的预定操作周期将被泵输送到塔的总期望液体体积; 以及在所述预定操作周期的所有循环期间确定由所述泵输送到所述塔的总实际液体体积。 在将所需总液体体积与总实际液体体积进行比较之后，产生一个或多个后续活塞循环，其响应于比较步骤期间的确定而提供不同于给定液体流速的补偿液体流量， 总实际液体体积和总所需液体体积。 液体流量的补偿率校正泵循环错误，产生不正确的液体体积流量。
-
公开(公告)号：US5388965A
公开(公告)日：1995-02-14
申请号：US033877
申请日：1993-03-19
Applicant: Bethold A. Fehn
Inventor： Bethold A. Fehn
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：US5346368A
公开(公告)日：1994-09-13
申请号：US131091
申请日：1993-10-01
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
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。
-
34.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。
-
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.
-
Patent Agency Ranking
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.
-
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.
-
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.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
96
records
(took 0.014 seconds)
