公开(公告)号：WO02053957A1

公开(公告)日：2002-07-11

申请号：PCT/KR2001/002155

申请日：2001-12-13

IPC: F04B37/14 ,  F04B49/03 ,  F16K15/00

CPC classification number: F04B49/03 ,  F04B37/14 ,  Y10T137/7849 ,  Y10T137/7856 ,  Y10T137/7869 ,  Y10T137/7905 ,  Y10T137/7931

Abstract: A leak control valve preventing the damage of the vacuum pump and/or the neighboring instruments even in the case of fluid leak at the vessel. The side wall of the valve poppet closes the channel to the outlet through restoring forces of the springs installed at both sides of the poppet in case when the abrupt pressure change happens by accident.

Abstract translation: 一种泄漏控制阀，即使在容器内存在液体泄漏的情况下也能防止真空泵和/或相邻仪器的损坏。 阀门提升阀的侧壁通过安装在提升阀两侧的弹簧的恢复力将通道封闭，以防在意外发生突然的压力变化的情况下。

公开(公告)号：WO2023085436A1

公开(公告)日：2023-05-19

申请号：PCT/JP2022/042360

申请日：2022-11-15

Applicant: ナブテスコオートモーティブ株式会社

Inventor： 杉尾　卓也 ,  除田　和也 ,  片山　祐作

IPC: B01D53/26 ,  B60T17/00 ,  F04B37/20 ,  F04B49/03 ,  F04B49/06

Abstract: 圧縮乾燥空気の湿度の上昇を抑制する空気供給システム、空気供給システムの制御方法、及び空気供給システムの制御プログラムを提供する。空気供給システム１０は、コンプレッサ４とエアタンク３０との間に設けられ水分を捕捉する乾燥剤を含むフィルタ１７を有する空気乾燥回路１１と、空気乾燥回路１１を制御するＥＣＵ８０とを備える。ＥＣＵ８０は、連続した供給動作によってフィルタ１７を通過した圧縮乾燥空気の通気量が所定通気量よりも大きく、且つ圧縮乾燥空気の湿度が規定値よりも大きくなったときに、強制的にエアタンク３０に貯留された圧縮乾燥空気をフィルタ１７に逆方向に通過させてフィルタ１７を通過した流体をドレン排出口２７から排出する強制再生動作を行う。

公开(公告)号：WO2022260856A1

公开(公告)日：2022-12-15

申请号：PCT/US2022/030651

申请日：2022-05-24

Applicant: DRESSER-RAND COMPANY

Inventor： SANFORD, Joel, T.

IPC: F04B39/10 ,  F04B7/00 ,  F04B7/02 ,  F04B49/03

Abstract: An inlet valve system (10), as may be used for a cylinder chamber (20) of a compressor, such as a reciprocating compressor, is disclosed. A plurality of inlet valves (250) is movable between an open position and a closed position. The plurality of inlet valves is arranged between an unloader chamber (120) and a cylinder chamber (20) of the compressor. A control valve (270, 270') is coupled to a controller (300) and is movable between a first position and a second position to close the inlet valves. A check valve (260, 260') is movable between a first position and a second position to open the inlet valves. The check valve and the control valve are respectively fluidly coupled to a control chamber (252), which is decoupled from any pressure control external to cylinder chamber (20).

公开(公告)号：WO2022149147A2

公开(公告)日：2022-07-14

申请号：PCT/IL2022/050045

申请日：2022-01-11

Applicant: COMET-ME LTD.

Inventor： DOTAN, Noam ,  HOFFSTAEDT, Justus ,  BRAND, Ryan Melville Whillier ,  ORIAN, Elad

IPC: F02M55/04 ,  F02M37/00 ,  F04B11/00 ,  F04B11/0016 ,  F04B11/0025 ,  F04B49/03 ,  F04B49/22 ,  F04B53/04

Abstract: A method of attenuating pressure pulsations, comprises: pumping liquid into a vessel in fluid communication with a flow line by a conduit sealingly passing through a top surface of the vessel, so as to discharge the liquid into the flow line while creating an air- liquid interface in the vessel, by trapping in an upper part of the vessel air that attenuates pressure pulsations caused by the pumping. The method also comprises generating condition for the liquid to drain out of the vessel to allow air to fill at least the upper portion of the vessel.

公开(公告)号：WO2021160672A1

公开(公告)日：2021-08-19

申请号：PCT/EP2021/053211

申请日：2021-02-10

Applicant: BITZER KÜHLMASCHINENBAU GMBH

Inventor： MANNEWITZ, Jens ,  FUHRER, Tobias

IPC: F04B49/20 ,  F04B49/06 ,  F04B27/04 ,  F04B27/053 ,  F04B27/067 ,  F04B49/03 ,  F04B49/035

Abstract: Kältemittelverdichter(12) für Kälteanlagen umfassend einen Elektromotor (60), mindestens zwei Zylinderbänke (42) und eine mechanische Leistungssteuereinheit (70) zum Aktivieren und Deaktivieren mindestens einer der Zylinderbänke (42), um deren Kältemittelausstoß zu aktivieren oder deaktivieren, wobei der Kältemittelverdichter (12) zum Betrieb in Teilleistungszuständen in mindestens zwei verschiedenen Betriebsmodi (B), von denen jeder eine von den anderen Betriebsmodi unterschiedliche Aktivierung oder Deaktivierung der Zylinderbänke (12) vorsieht, betreibbar ist, wobei dem Kältemittelverdichter (12) ein Frequenzumrichter (132) zur Drehzahlsteuerung des Elektromotors (60) zugeordnet ist, wobei dem Kältemittelverdichter (12) eine Betriebszustandssteuerung (130) zugeordnet ist, welche entsprechend einem dieser zugeführten Leistungsanforderungssignal für den Betrieb des Kältemittelverdichters (12) in dem diesem Leistungsanforderungssignal (LA) entsprechenden Teilleistungszustand den Kältemittelverdichter (12) in einem aus mindestens zwei verschiedenen Betriebsmodi (B) ausgewählten Betriebsmodus sowie einer an den ausgewählten Betriebsmodus angepassten Drehzahl zur Realisierung dieses Teilleistungszustandes betreibt.

公开(公告)号：WO2020026688A1

公开(公告)日：2020-02-06

申请号：PCT/JP2019/026510

申请日：2019-07-03

Applicant: 株式会社神戸製鋼所

Inventor： 濱田　克徳 ,  弥久保　修人 ,  星川　明

IPC: F04B49/02 ,  F04B39/16 ,  F04B49/03 ,  F04C29/02

Abstract: 圧縮機１は、モータ２を有し、空気を圧縮する圧縮機本体３と、圧縮機本体３から供給された圧縮空気を冷却するアフタークーラ５と、アフタークーラ５から出た圧縮空気を除湿するドライヤ６と、ドライヤ６からドレンを排出するためのドレン排出弁１１と、アフタークーラ５の下流の空気の圧力を測定する第１圧力センサ１２と、モータ２の起動時において、第１圧力センサ１２で測定した圧力値Ｐｄが所定の第１閾値未満の場合にモータ２の定格加速度である第１加速度よりも小さな第２加速度にてモータ２を駆動する回転数調整部７ａを有する制御装置７とを備える。

公开(公告)号：WO2020018068A1

公开(公告)日：2020-01-23

申请号：PCT/US2018/042308

申请日：2018-07-16

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： GILLISPIE, Aric, Martin

IPC: F04B49/00 ,  F04B49/03 ,  F04B23/04 ,  E21B43/267

Abstract: A system includes a first plurality of pumps connected to draw from a clean fluid supply junction. A second plurality of pumps is operatively connected to a dirty fluid supply. A first valve is connected between the clean fluid supply junction and the dirty fluid supply for supplying clean fluid to the dirty fluid supply. A second valve is connected to feed a dirty fluid to the dirty fluid supply. A controller is operatively connected to the first and second valves and to the first and second pluralities of pumps for controlling downhole concentration and flow rate of proppant from the dirty fluid supply, wherein downhole concentration and flow rate are varied across a continuous spectrum.

公开(公告)号：WO2019066286A1

公开(公告)日：2019-04-04

申请号：PCT/KR2018/010380

申请日：2018-09-05

Applicant: 엘지전자 주식회사

Inventor： 이기연 ,  김승욱 ,  김영환

IPC: F04B39/02 ,  F04B39/10 ,  F04B49/03

Abstract: 본 발명은 밸브가 원심력을 받아 바이패스 홀을 개방하는 방향으로 힘을 받고, 스프링은 상기 밸브가 바이패스 홀을 막는 방향으로 상기 밸브를 가압하는 구조의 윤활유 공급장치이다. 이를, 오일(윤활유)의 급유량이 운전 속도에 비례하여 증가하는 오일 펌프에 적용하면, 저속에서 충분한 오일(윤활유)의 급유량을 확보할 수 있고, 고속 운전 시 필요 이상으로 오일이 공급되지 않도록 할 수 있다.

公开(公告)号：WO2018102925A1

公开(公告)日：2018-06-14

申请号：PCT/CA2017/051480

申请日：2017-12-06

Applicant: PMC PUMPS INC.

Inventor： DING, Yuchang (bob) ,  DING, Xuefeng (kevin)

IPC: F04B47/08 ,  E21B43/12 ,  F04B23/04 ,  F04B49/03 ,  F04B49/20 ,  E21B43/24

Abstract: A submersible, hydraulically actuated, multi-stage double-acting positive displacement pump system is provided. The system has a hydraulically actuated reciprocating linear double-acting motor centrally disposed between and connected to double-action fluid pumps on either side of the motor, with pistons of each of pump and the motor all in the annular space between an inner wall of the apparatus' cylindrical body and the outer wall of a cylindrical production fluid conduit concentrically disposed within the body, to pump wellbore fluid from outside the assembly through the pumps and into the central production fluid conduit. The rate and direction of hydraulic fluid flow through the actuator may be controlled by VFD motors and PLC controller on the ground, and through at least one electromechanical valve and two limit switches mounted to the downhole components.

公开(公告)号：WO2017190024A1

公开(公告)日：2017-11-02

申请号：PCT/US2017/030155

申请日：2017-04-28

Applicant: NAYA HEALTH, INC. ,  ALVAREZ, Jeffery, B. ,  CENTENO, Leo ,  TOLMASOFF, William ,  SWOPE, Brett ,  FORMAN, Alex ,  PARK, Kyung, R.

Inventor： ALVAREZ, Jeffery, B. ,  CENTENO, Leo ,  TOLMASOFF, William ,  SWOPE, Brett ,  FORMAN, Alex ,  PARK, Kyung, R.

IPC: A61M1/06 ,  F04B49/00 ,  F04B49/02 ,  F04B49/03

Abstract: A hydraulic pumping system in accordance with embodiments comprises a breast interface operably coupled to an actuatable assembly by means of an actuatable assembly interface. The breast interface comprises a distal membrane coupled to a housing to form a fluid reservoir therebetween. The actuatable assembly interface comprises a proximal membrane. The distal and proximal membranes are fluidly coupled via a tube carrying a driving fluid. The actuatable assembly interface is configured to removably couple to the actuatable assembly, in order to operably couple the actuatable assembly to the breast interface. The actuatable assembly interface comprises a fluid shut off mechanism to reversibly shut off fluid communication between the breast interface and the actuatable assembly interface when the actuatable assembly interface is decoupled from the actuatable assembly.

Abstract translation: 根据实施例的液压泵送系统包括乳房接口，乳房接口借助于可致动组件接口可操作地联接到可致动组件。 乳房接口包括联接到壳体以在其间形成流体储存器的远侧膜。 可致动的组件界面包括近侧膜。 远侧膜和近侧膜通过携带驱动流体的管流体耦合。 可致动组件接口被配置为可移除地联接到可致动组件，以便将可致动组件可操作地联接到乳房接口。 可致动组件接口包括流体切断机构，以在可致动组件接口与可致动组件断开连接时可逆地切断乳房接口与可致动组件接口之间的流体连通。