公开(公告)号：US5897781A

公开(公告)日：1999-04-27

申请号：US870661

申请日：1997-06-06

Applicant: Theodore A. Dourdeville

Inventor： Theodore A. Dourdeville

IPC: B01D15/08 ,  B01J4/02 ,  F04B13/00 ,  F04B23/06 ,  F04B49/06 ,  G01N30/32

CPC classification number: G01N30/32 ,  F04B13/00 ,  F04B23/06 ,  F04B49/065 ,  F04B2201/0201 ,  G01N2030/326

Abstract: A fluid delivery method and apparatus implementing active phasing to actively restore the substantially exact mechanical positions of driven components in a delivery system in order to precisely reproduce the mechanical signature and hydraulic characteristics of the system from run to run without perturbing output flow. The delivery system is configured to intelligently drive pump pistons to a known position and to deliver fluid(s) at a known pressure, and includes a plurality of pump modules each including motor driven syringes having respective pistons configured to reciprocate under control of a control mechanism. Pump phasing is accomplished through a mechanism of compensation delivery of the syringes. An independent, motor-driven syringe of any given pump in a plurality of pumps in a system has the ability to act as a delivering syringe to maintain a prescribed output flow while one other syringe of each of the plurality of pumps is repositioned under load. With the delivering syringe maintaining output flow, the syringe which is repositioning, i.e. being phased, can substantially simultaneously arrive at a destination position and at a destination pressure.

Abstract translation: 实现有源定相的流体输送方法和装置主动地恢复输送系统中驱动部件的基本精确的机械位置，以便精确地再现系统的运行到运行的机械特征和液压特性而不扰乱输出流。 输送系统构造成将泵活塞智能地驱动到已知位置并且以已知压力输送流体，并且包括多个泵模块，每个泵模块包括具有相应活塞的马达驱动注射器，该活塞构造成在控制机构的控制下往复运动 。 泵的定相是通过注射器的补偿输送机制完成的。 在系统中的多个泵中的任何给定的泵的独立的电机驱动的注射器具有作为输送注射器保持规定的输出流量的能力，同时多个泵中的每一个的另一个注射器被重新定位在负载下。 在输送注射器保持输出流量的情况下，重新定位的注射器（即定相）可以基本上同时到达目的地位置和目的地压力。

公开(公告)号：US5823747A

公开(公告)日：1998-10-20

申请号：US654759

申请日：1996-05-29

Applicant: Steven J. Ciavarini ,  Robert J. Dumas

Inventor： Steven J. Ciavarini ,  Robert J. Dumas

IPC: F04B49/10 ,  F04B49/06 ,  F04B53/06 ,  B01D15/08

CPC classification number: F04B53/06 ,  F04B49/06 ,  F04B2201/0201 ,  F04B2205/05 ,  F04B2205/503

Abstract: A serial, dual piston high pressure fluid pumping system that overcomes the difficulties of gas in the fluid stream without the need for added mechanical valves or fluid paths. A bubble detection and recovery mechanism monitors compression and decompression volumes of the serially configured dual pump head pump, and the overall system delivery pressure. Bubble detection is effected by sensing a ratio of compression to decompression volume and determining if the ratio exceeds an empirical threshold that suggests the ratio of gas-to-liquid content of eluent or fluid in the system is beyond the pump's ability to accurately meter a solvent mixture. The magnitude of the ratio of compression to decompression volume indicates that either the intake stroke has a bubble or that the eluent has a higher-than-normal gas content. Once a bubble has been detected, recovery is effected by forcing the pump into a very high stroke volume with the compression and decompression stroke limits constrained to obtain the largest delivery stroke compression ratio that will expel a bubble or solvent that has detrimental quantities of gas.

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：US4705459A

公开(公告)日：1987-11-10

申请号：US767001

申请日：1985-08-19

Applicant: Paul H. Buisine ,  Paul Dancer

Inventor： Paul H. Buisine ,  Paul Dancer

IPC: F04B51/00

CPC classification number: F04B51/00 ,  F04B2201/0201 ,  F04B2201/0207 ,  F04B2201/0601 ,  Y10T137/8242

Abstract: The invention relates in particular to measuring the delivery rate of a positive displacement pump comprising at least one piston (3) driven with reciprocating movement in a chamber (2), which chamber is connected to an inlet circuit (4) via an inlet valve (5) and to an outlet circuit (6) via a delivery valve (7). The number of cycles performed by the pump in unit time are counted, and simultaneously its volumetric efficiency is measured, thereby enabling its real delivery rate to be deduced. Its volumetric efficiency may be measured by means of position sensors (17, 18) detecting the closure and opening instants of the delivery valve, with another sensor determining the instants at which the piston (3) passes through its end positions.

Abstract translation: 本发明特别涉及测量包括至少一个活塞（3）的容积式泵的排量，所述活塞（3）在室（2）中以往复运动驱动，所述室通过入口阀（...）连接到入口回路（4） 5）和经由输送阀（7）的出口回路（6）。 计算泵在单位时间内执行的循环次数，同时测量其体积效率，从而实现其实际传送速率。 其体积效率可以通过检测输送阀的闭合和打开瞬间的位置传感器（17,18）来测量，另一个传感器确定活塞（3）穿过其终端位置的时刻。

公开(公告)号：USRE31608E

公开(公告)日：1984-06-19

申请号：US220622

申请日：1980-12-29

Applicant: Haakon T. Magnussen, Jr.

Inventor： Haakon T. Magnussen, Jr.

IPC: B01D15/08 ,  B01D15/14 ,  F04B9/04 ,  F04B49/06 ,  F04B49/20 ,  G01N30/32 ,  G01N30/36

CPC classification number: B01D15/14 ,  F04B49/06 ,  F04B49/20 ,  F04B9/042 ,  G01N30/32 ,  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.

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：US12018674B2

公开(公告)日：2024-06-25

申请号：US17371861

申请日：2021-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinseok Hu ,  Young Doo Kim ,  Jae Jun You ,  Koonseok Lee

IPC: F04B49/20 ,  F04B35/04 ,  F04B49/02 ,  F04B49/06

CPC classification number: F04B49/20 ,  F04B35/04 ,  F04B49/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0402 ,  F04B2203/0408 ,  F04B2207/043

Abstract: An apparatus and a method may control a compressor. The apparatus may control a motor (included in a compressor) such that the motor quickly repeats turn-on and turn-off operations in a cooling power supply time period/section, thereby enabling the compressor to compress refrigerant in the cooling power supply time period/section. Thus, cooling power of a refrigerator may change while the compressor operates with maximum efficiency.

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：US11953119B2

公开(公告)日：2024-04-09

申请号：US18474975

申请日：2023-09-26

Applicant: SHENZHEN KEYTO FLUID TECHNOLOGY CO., LTD.

Inventor： Cheng Zhang ,  Xiyuan Xiao ,  Jin Liu ,  Yi Wu

IPC: F16K37/00 ,  A61M5/20 ,  A61M5/315 ,  F04B17/03 ,  F04B49/06 ,  F16K11/074 ,  F16K31/04

CPC classification number: F16K37/005 ,  A61M5/20 ,  A61M5/31546 ,  A61M5/31565 ,  A61M5/31568 ,  A61M5/3157 ,  A61M5/31576 ,  A61M5/31585 ,  F04B17/03 ,  F04B49/06 ,  F04B49/065 ,  F16K11/0743 ,  F16K31/042 ,  F16K37/0041 ,  A61M5/31573 ,  A61M2005/31588 ,  F04B2201/0201 ,  F04B2205/03

Abstract: A micro-metering device with a constant flow rate, including a rotary shear valve, a mounting seat, a rotation drive assembly, an injection drive assembly and a controller. The rotary shear valve includes a valve main body and a valve spool. The valve main body is provided with a main flow channel and a plurality of branch flow channels. The valve spool is rotatably arranged inside the valve main body, and is configured to communicate the main flow channel with different branch flow channels. A pressure sensor is provided inside the valve main body, and is communicated with the main flow channel. The pressure sensor is configured for detecting a pressure inside the main flow channel. Whether the switching of the liquid path is correct is determined according to the pressure in the main flow channel.