公开(公告)号：USRE40830E1

公开(公告)日：2009-07-07

申请号：US11152834

申请日：2005-06-15

Applicant: Jean-Luc Caillat

Inventor： Jean-Luc Caillat

IPC: F04B49/00

CPC classification number: F04C28/24 ,  F04B49/06 ,  F04B49/225 ,  F04B2201/0601 ,  F04B2205/16 ,  F04B2207/043 ,  F04C2270/58 ,  F25B41/043 ,  F25B2600/2521

Abstract: A pulsed modulated capacity modulation system for refrigeration, air conditioning or other types of compressors is disclosed in which suitable valving is provided which operates to cyclically block flow of suction gas to a compressor. A control system is provided which is adapted to control both the frequency of cycling as well as the relative duration of the on and off time periods of each cycle in accordance with sensed system operating conditions so as to maximize the efficiency of the system. Preferably the cycle time will be substantially less than the time constant of the load and will enable substantially continuously variable capacity modulation from substantially zero capacity to the full capacity of the compressor. Additional controls may be incorporated to modify one or more of the motor operating parameters to improve the efficiency of the motor during periods of reduced load.

Abstract translation: 公开了一种用于制冷，空调或其它类型的压缩机的脉冲调制容量调制系统，其中提供了合适的阀门，其循环地阻止吸入气体到压缩机的流动。 提供一种控制系统，其适于根据感测的系统操作条件来控制循环的频率以及每个循环的开启和关闭时间段的相对持续时间，以便最大化系统的效率。 优选地，循环时间将显着小于负载的时间常数，并且将使基本上可变的容量调节从基本上零容量到压缩机的全部容量。 可并入附加控制以修改电动机操作参数中的一个或多个，以在减小负载期间提高电动机的效率。

公开(公告)号：US5888051A

公开(公告)日：1999-03-30

申请号：US692598

申请日：1996-08-06

Applicant: John E. McLoughlin ,  Neocles G. Athanasiades

Inventor： John E. McLoughlin ,  Neocles G. Athanasiades

IPC: F04B49/06 ,  F04D15/00 ,  F04D15/02 ,  F04B49/00

CPC classification number: F04D15/0209 ,  F04B49/065 ,  F04D15/0066 ,  F04B2201/0601 ,  F04B2201/1201 ,  F04B2205/05 ,  F04B2207/70

Abstract: A system for controlling the pressure output of an engine-driven centrifugal fire pump includes a discharge pressure sensor mounted in the discharge line of the pump. A governor varies the RPM of the engine in response to pressure changes detected by the discharge pressure sensor. An electronically controlled hydraulic relief valve responsive to the discharge pressure sensor operates simultaneously with the governor to provide improved pressure control in overpressure situations.

Abstract translation: 用于控制发动机驱动的离心式消防泵的压力输出的系统包括安装在泵的排出管线中的排出压力传感器。 调速器响应于排气压力传感器检测到的压力变化而改变发动机的转速。 响应于排出压力传感器的电子控制液压释放阀与调速器同时操作，以在超压情况下提供改进的压力控制。

公开(公告)号：US5634779A

公开(公告)日：1997-06-03

申请号：US535062

申请日：1996-01-05

Applicant: Jan L. Eysymontt

Inventor： Jan L. Eysymontt

IPC: F04B9/117 ,  F04B49/06 ,  F04B9/10

CPC classification number: F04B9/1178 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0601

Abstract: A hydraulic fluid-driven, multicylinder, modular, reciprocating piston pumping machine of non pulsating flow and independently variable forward and return stroke speeds comprises several pumping modules (A, B . . . E) each having one primary cylinder (A1, B1 . . . E1) and one secondary cylinder (A2, B2 . . . E2) coaxially joined by an angularly and radially oscillating bushing (100) through which slides a piston rod (A3, B3 . . . E3) with an angularly oscillating piston (A4, B4 . . . E4; A5, B5 . . . E5) at each of its ends. Each primary cylinder (A1, B1 . . . E1) has the end opposed to the bushing closed by valve monifolds (A11, B11 . . . E11) interconnected through a pressurized hydraulic fluid distritubor conduit (5) through which pressurized hydraulic fluid is supplied to the primary cylinder of each module by at least one hydraulic pump (1, 2). A hydraulic fluid chamber (A18, B18 . . . E18) formed in each primary cylinder by the piston back, said bushing (100), the rod's surface and the cylinder's interior wall, communicates with all such chambers (A18, B18 . . . E18) of the rest of the modules by a distributor-collector conduit (11 ) provided with at least one hydro-pneumatic accumulator (12) connected to a relatively large, second supplementary gas reservoir (23) constituting a volumetric compensator for all the hydraulic fluid contained in all said chambers (A18, B18 . . . E18), and at the same time providing pressure for the pistons back stroke. One or more further hydro-pneumatic accumulators (8) are provided in a return fluid collector connected (7) to the valve manifolds (A11, B11 . . . E11), and further individual hydro-pneumatic accumulators (A14, B14 . . . E14) are provided for the valve manifolds (A11, B11 . . . E11).

公开(公告)号：US5174472A

公开(公告)日：1992-12-29

申请号：US687715

申请日：1991-04-18

Applicant: Glen F. Raque ,  Edward A. Robinson

Inventor： Glen F. Raque ,  Edward A. Robinson

IPC: F04B7/00 ,  G01F11/02

CPC classification number: G01F11/029 ,  F04B7/0007 ,  F04B2201/0201 ,  F04B2201/0601

Abstract: A control system and method are provided for controlling the timing of a dispenser including a valve which moves alternately between a product-loading position and a product-dispensing position in a repeated cycle. The dispenser also includes a mechanism for dispensing a product from the dispenser after each time the valve moves to its product-dispensing position. The control system includes a detector which detects the time of which the valve reaches its product-dispensing position and a mechanism for generating a control signal at a predetermined time to actuate the dispensing mechanism when the valve reaches its product-dispensing position. The control system also includes a sensor for sensing the time that the dispensing mechanism actually begins dispensing product. The control system further determines the time difference between the time the valve reaches its product-dispensing position and the time the dispensing mechanism actually begins dispensing the product. The control system adjusts the predetermined time that the control signal is generated to actuate the dispensing mechanism for the next cycle of the valve by an amount based on the time difference between the time the valve reaches its product-dispensing position and the time the dispensing mechanism actually begins dispensing product to maintain the time difference within a predetrmined time range.

Abstract translation: 提供了一种用于控制分配器的定时的控制系统和方法，该分配器包括在反复循环中在产品加载位置和产品分配位置之间交替移动的阀。 分配器还包括用于在每次阀移动到其产品分配位置之后从分配器分配产品的机构。 控制系统包括检测阀到达其产品分配位置的时间的检测器和用于在预定时间产生控制信号以在阀达到其产品分配位置时致动分配机构的机构。 控制系统还包括用于感测分配机构实际开始分配产品的时间的传感器。 控制系统还确定阀到达其产品分配位置的时间与分配机构实际开始分配产品的时间之间的时间差。 控制系统调整生成控制信号的预定时间，以便基于阀到达其产品分配位置的时间与分配机构的时间之间的时间差来激活阀的下一周期的分配机构 实际上开始分配产品以在预先设定的时间范围内保持时间差。

公开(公告)号：US20230160381A1

公开(公告)日：2023-05-25

申请号：US17937562

申请日：2022-10-03

Applicant: DIONEX SOFTRON GMBH

Inventor： Christoph Hollnagel ,  Hermann Hochgräber ,  Martin Rendl ,  Anne Morgenstern

IPC: F04B49/02 ,  F04B13/00 ,  F04B49/03

CPC classification number: F04B49/022 ,  F04B13/00 ,  F04B49/03 ,  F04B2201/0601 ,  F04B2205/04

Abstract: The present invention relates to a method of loading a fluid into a fluidic element, wherein the method is performed in a fluidic system comprising the fluidic element, wherein the method comprises determining a volume that has flown into the fluidic element since a start time tstart, and at a switching time tswitch, switching the fluidic system to an operating state to stop flow into the fluidic element. The present invention also relates to a fluidic system configured for performing the method, and to a corresponding computer program product.

公开(公告)号：US20180202433A1

公开(公告)日：2018-07-19

申请号：US15743572

申请日：2015-09-04

Applicant: Halliburton Energy Services, Inc.

Inventor： Joseph A. Beisel

IPC: F04B51/00 ,  F04B19/04 ,  F04B9/04 ,  F04B47/04 ,  F04B49/06 ,  G01B7/00

CPC classification number: F04B51/00 ,  F04B1/00 ,  F04B9/045 ,  F04B19/04 ,  F04B47/02 ,  F04B47/04 ,  F04B49/065 ,  F04B2201/0601 ,  F04B2201/0603 ,  F04B2201/1208 ,  F04B2205/03 ,  G01B7/003

Abstract: A monitoring system may include a position sensor, a strain gauge, and a computing device for determining the condition of a valve in a chamber of a pump using strain measurements. The strain gauge may determine strain in the chamber. The position sensor may determine the position of a crankshaft coupled to a plunger in the chamber. The computing device may receive signals generated by the strain gauge and the position sensor related to the strain in the chamber and the position of the crankshaft, respectively, and may process the signals to determine delays in the actuation of the valves.

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

IPC: F02M59/08 ,  F02M59/26 ,  F02M59/10 ,  F04B15/08

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.

公开(公告)号：US20170016313A1

公开(公告)日：2017-01-19

申请号：US15210319

申请日：2016-07-14

Applicant: Weatherford Technology Holdings, LLC

Inventor： Victoria M. PONS ,  Anthony P. ALLISON ,  Jeremy M. GOMES

IPC: E21B47/00 ,  F04B49/06 ,  G05D7/06 ,  F04B49/22 ,  G05B19/042 ,  E21B43/12 ,  F04B47/02

CPC classification number: E21B47/0007 ,  E21B43/127 ,  E21B47/0008 ,  F04B47/022 ,  F04B49/065 ,  F04B49/22 ,  F04B2201/0201 ,  F04B2201/0601 ,  F04B2201/121 ,  G05B19/042 ,  G05B2219/43193 ,  G05D7/0676

Abstract: Techniques and apparatus are provided for improved diagnostics of downhole dynamometer data for control and troubleshooting of reciprocating rod lift systems. A method for pump fillage determination for a reciprocating rod lift system is provided. The method generally includes measuring downhole data during a pump cycle, wherein the downhole data comprises a first plurality of data points associated with an upstroke of the pump cycle and a second plurality of data points associated with a downstroke of the pump cycle, each data point comprising a rod position value and an associated rod load value; converting the data points to non-dimensional data points, calculating non-dimensional slope values between non-dimensional data points; and determining pump fillage based, at least part, on the calculated non-dimensional slope values.

Abstract translation: 提供了技术和设备，用于改进井下测力计数据的诊断，用于控制和排除往复式杆升降系统。 提供了一种用于往复式杆提升系统的泵填充确定的方法。 该方法通常包括在泵循环期间测量井下数据，其中井下数据包括与泵循环的上行相关联的第一多个数据点和与泵循环的下行程相关联的第二多个数据点，每个数据点 包括杆位置值和相关联的杆负载值; 将数据点转换为无量纲数据点，计算非维数据点之间的无量纲斜率值; 并且至少部分地基于所计算的无量纲斜率值来确定泵填充。

公开(公告)号：US20160158784A1

公开(公告)日：2016-06-09

申请号：US14905192

申请日：2014-07-18

Applicant: GRACO MINNESOTA INC.

Inventor： David L. Fehr ,  John R. Ingebrand ,  Jeffrey U. Shaffer

IPC: B05B12/14 ,  F04B49/22 ,  B05B7/04 ,  F04B53/10 ,  F04B53/16 ,  F04B19/22 ,  F04B53/14

CPC classification number: B05B7/1254 ,  B05B7/04 ,  B05B7/0408 ,  B05B7/24 ,  B05B7/2486 ,  B05B7/2497 ,  B05B9/04 ,  B05B9/0406 ,  B05B9/0413 ,  B05B12/087 ,  B05B12/1418 ,  B05B12/149 ,  B05B15/55 ,  B29B7/7447 ,  F04B5/02 ,  F04B7/02 ,  F04B13/00 ,  F04B15/02 ,  F04B17/03 ,  F04B19/22 ,  F04B23/06 ,  F04B39/0292 ,  F04B39/10 ,  F04B49/10 ,  F04B49/22 ,  F04B51/00 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16 ,  F04B2201/0601 ,  F16N7/32

Abstract: A method of actuating a double-action pump assembly with a reciprocating plunger includes signaling the reciprocating plunger to stop for a changeover period; while the pump is stopping, signaling the first inlet and outlet valves to close; while the first inlet and outlet valves are closing, signaling the second inlet and outlet valves to open, such that the second inlet and outlet valves begin to mechanically open at least a dwell period after the first inlet and outlet valves have entirely closed; and signaling the reciprocating plunger to begin moving while the second inlet and outlet valves are closing.

Abstract translation: 用往复式柱塞致动双作用泵组件的方法包括使往复式柱塞信号停止转换周期; 当泵停止时，指示第一个入口和出口阀关闭; 而第一入口和出口阀正在关闭，指示第二入口和出口阀打开，使得第二入口和出口阀在第一入口和出口阀完全关闭之后至少开启至少一个停留时间段; 并且当第二入口和出口阀关闭时，信号通知往复式柱塞开始移动。

公开(公告)号：US20140044570A1

公开(公告)日：2014-02-13

申请号：US14019163

申请日：2013-09-05

Applicant: Entegris, Inc.

Inventor： James Cedrone ,  George Gonnella ,  Iraj Gashgaee

IPC: F04B43/04

CPC classification number: F04B43/04 ,  F04B7/0076 ,  F04B9/02 ,  F04B13/00 ,  F04B23/06 ,  F04B49/065 ,  F04B53/06 ,  F04B53/16 ,  F04B53/22 ,  F04B2201/0201 ,  F04B2201/0601 ,  F04B2205/03 ,  Y10T29/49236 ,  Y10T137/87885

Abstract: Embodiments of the present invention provide pumps with features to reduce form factor and increase reliability and serviceability. Additionally, embodiments of the present invention provide features for gentle fluid handling characteristics. Embodiments of the present invention can include a pump having onboard electronics and features to prevent heat from the onboard electronics from degrading process fluid or otherwise negatively impacting pump performance. Embodiments may also include features for reducing the likelihood that fluid will enter an electronics housing.

Abstract translation: 本发明的实施例提供具有减小形状因素并提高可靠性和可服务性的特征的泵。 此外，本发明的实施例提供了用于温和流体处理特性的特征。 本发明的实施例可以包括具有车载电子设备和特征的泵，其特征在于防止车载电子器件的热量降解过程流体或以其他方式不利地影响泵的性能。 实施例还可以包括用于降低流体进入电子设备壳体的可能性的特征。