公开(公告)号：WO2022188308A1

公开(公告)日：2022-09-15

申请号：PCT/CN2021/103596

申请日：2021-06-30

Applicant: 江南大学

Inventor： 朱海清 ,  钱瑛 ,  沈晓东

IPC: G01L27/00 ,  G05D16/20

Abstract: 一种压力仪表测量精度检测用液体介质的压力控制系统及方法，属于机电一体化及压力仪表的测量精度检测技术领域。该系统包括：直线驱动装置、液体压力调节装置、标准表（12）、被检测表（13）、排气补液装置、控制器（8）、操作控制台（11）；直线驱动装置与控制器（8）连接；液体压力调节装置与直线驱动装置动力连接；排气补液装置分别连接于液体压力调节装置与液体管路（14）；控制器（8）与标准表（12）连接；操作控制台（11）与控制器（8）通过数据线（10）通信连接。该系统能对液体压力调节装置输出液体介质进行精确控制，可以同时满足低压至高压仪表检测的高精度需求，具有结构简单、制造成本低、压力控制精度高等特点。

公开(公告)号：WO2022106168A1

公开(公告)日：2022-05-27

申请号：PCT/EP2021/079837

申请日：2021-10-27

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： BILL, Markus ,  HILZENDEGEN, Philipp ,  PORTA, Nicola-Vincenzo

IPC: F15B13/02 ,  F15B13/04 ,  F16K17/04 ,  G05D16/20

Abstract: Ein Ventil, insbesondere in Form eines 2/2-Wege-Sitzventiles, dadurch gekennzeichnet, dass zur Realisierung einer thermischen Überdrucksicherung in einem gemeinsamem Ventilkörper eine Druckbegrenzungsfunktion (28) integriert ist.

公开(公告)号：WO2021262192A1

公开(公告)日：2021-12-30

申请号：PCT/US2020/039837

申请日：2020-06-26

Applicant: FEMA CORPORATION OF MICHIGAN

Inventor： IDALSKI, Jason, P. ,  BAKER, Andrew, Wayne ,  PRIDE, Steven, R., II

IPC: F15B13/043 ,  F15B13/04 ,  F16H61/02 ,  F16K3/26 ,  F16K31/06 ,  G05D16/20 ,  F16K27/041 ,  F16K3/265 ,  F16K3/267 ,  F16K31/0613 ,  G05D16/2097

Abstract: A valve (100) includes a solenoid (210) with a chamber (220) housing a pin (212) that actuates when the solenoid is energized. The valve also includes a spool (310) housed within a sleeve (320). The sleeve includes a supply section (326) with a supply port (P, Ps) in communication with a supply source (110) and a tank section (324) with a tank port (P, PT) in communication with a reservoir (120). The spool includes a body (312) including a first passage (318) receiving fluid from the supply source when an opening for the first passage aligns with the supply port. When the solenoid is energized and the opening for the first passage aligns with the supply port, fluid from the supply source (i) applies a force to the spool body in a direction of actuation by the pin and (ii) flows to a second passage within the valve.

公开(公告)号：WO2021131577A1

公开(公告)日：2021-07-01

申请号：PCT/JP2020/045060

申请日：2020-12-03

Applicant: 株式会社フジキン

Inventor： 平田　薫 ,  西野　功二 ,  杉田　勝幸 ,  小川　慎也 ,  井手口　圭佑

IPC: G05D16/20 ,  G01L13/00 ,  G01L19/00 ,  H01L21/3065 ,  H01L21/31

Abstract: 圧力制御装置２０は、圧力制御バルブ２５と、圧力制御バルブの下流側に設けられガスの流れを制限する流れ抵抗２３と、圧力制御バルブと流れ抵抗との間のガスの圧力を測定する第１圧力センサ２１と、流れ抵抗の下流側のガスの圧力を測定する第２圧力センサ２２と、第１圧力センサおよび第２圧力センサに接続された演算制御回路２６とを備え、第１圧力センサの出力によらず第２圧力センサの出力に基づいて圧力制御バルブの開度を調整することによって流れ抵抗下流側のガスの圧力を制御し、かつ、第１圧力センサの出力と第２圧力センサの出力とに基づいて流れ抵抗下流側のガスの流量を演算するように構成されている。

公开(公告)号：WO2020250314A1

公开(公告)日：2020-12-17

申请号：PCT/JP2019/023153

申请日：2019-06-11

Applicant: 株式会社島津製作所

Inventor： 尾和　道晃

IPC: G05D16/20 ,  G01N30/02

Abstract: 超臨界流体装置は、溶媒を供給する溶媒供給部と、溶媒供給部により供給される溶媒の流路に設けられる圧力制御装置と、圧力制御装置を制御する制御部とを備える。制御部は、圧力制御装置を制御することにより流路の圧力を上昇させて溶媒を超臨界流体の状態として所定処理の実行環境を維持する第１制御部と、所定処理の実行環境を終了させるとき、流路の圧力の中間目標値を設定し、中間目標値に向けて流路の圧力を制御する第２制御部とを含んでもよい。

公开(公告)号：WO2020245565A1

公开(公告)日：2020-12-10

申请号：PCT/GB2020/051284

申请日：2020-05-28

Applicant: OXFORD FLOW LIMITED

Inventor： KENNELL, Christopher ,  COLLINS, Matthew

IPC: G05D16/06 ,  G05D16/20

Abstract: An actuator (1) for a pilot valve (26), including a housing (2), a piston (4) movably mounted in the housing (2) and an actuator chamber (20) defined between the piston (4) and the housing (2). The actuator (1) includes a control fluid feed (16) for introducing a fluid into the actuator chamber (20) to control fluid pressure, with the fluid pressure acting on the piston (4). The actuator (1) also includes an actuation member for acting on the pilot valve (26) and a loading spring (6) between the piston (4) and the actuation member. The loading spring (6) is arranged to bias the piston (4) against the fluid pressure in the actuator chamber (20). The control fluid feed (16) controls the fluid pressure so the fluid pressure acts on the piston (4) against the bias of the loading spring (6) to control the biasing force.

公开(公告)号：WO2020156623A1

公开(公告)日：2020-08-06

申请号：PCT/DK2020/050025

申请日：2020-01-29

Applicant: JJ-CCR MACHINING APS

Inventor： PETERSEN, Jan

IPC: B63C11/24 ,  A62B19/00 ,  G05D11/13 ,  G05D16/20

Abstract: Closed circuit mixed gas diving rebreather which comprises -a gas loop, for one-directional circulation of the gas,and comprising -one or more counterlungs, -a scrubber container, which contains a carbon dioxide scrubber, - a gas-transferring member, - at least one hose, said rebreather further comprises -a first pressure container, which is connected to the gas loop via a first pressure regulator, -a microcontroller, - at least one oxygen sensor, -a power source, -a first valve for regulating the oxygen gas supply to the gas loop, -a piezoelectric actuator, which actuates the first valve, which piezoelectric actuator is non-magnetic. The first valve is a non-magnetic on-off valve. The first pressure container is made from a non-magnetic material. The diving rebreather further comprises -a second pressure container, which is made from a non-magnetic material, and which is connected to the gas loop via a second pressure regulator, -a second valve which is non-magnetic, -a non-magnetic support frame.

公开(公告)号：WO2019235844A1

公开(公告)日：2019-12-12

申请号：PCT/KR2019/006801

申请日：2019-06-05

Applicant: 주식회사 엘지화학

Inventor： 황동국 ,  안정애 ,  최낙희

IPC: G01N33/00 ,  H01M10/42 ,  G05D16/20

Abstract: 본 발명은 이차전지 내부 발생 가스 실시간 분석용 챔버 및 시스템에 관한 것으로, 더욱 상세하게는 이차전지에 직접적으로 열을 가하면서 온도를 조절할 수 있는 이차전지 내부 발생 가스 실시간 분석용 챔버 및 시스템에 관한 것이다.

公开(公告)号：WO2019186483A1

公开(公告)日：2019-10-03

申请号：PCT/IB2019/052589

申请日：2019-03-29

Applicant: CAMOZZI AUTOMATION S.P.A.

Inventor： FERRARINI, Dario ,  CAMISANI, Andrea

IPC: F16K31/126 ,  F16K31/128 ,  G05D16/20 ,  F15B21/08

Abstract: A pressure regulator comprises an outlet pressure sensor (16), a loading electromagnetic valve (18), an unloading electromagnetic valve (20) and a regulator control circuit (30) operatively connected to the loading electromagnetic valve (18) and to the unloading electromagnetic valve (20) and configured to pilot the loading electromagnetic valve (18) and the unloading electromagnetic valve (20) so as to cancel an error signal given by the difference between an inlet signal corresponding to the desired outlet pressure and a feedback signal provided by the outlet pressure sensor. The regulator further comprises an engaging current analysis circuit configured to: a) detect and store reference characteristics of the waveform of the engaging current of the solenoid of the loading electromagnetic valve in a stable inlet pressure condition; b) monitor, during the operation of the regulator, the waveform of said engaging current so as to detect any variations of its characteristics with respect to the corresponding reference characteristics; c) in the event of variation, provide a pilot modulation signal to the loading electromagnetic valve (18) and/or the unloading electromagnetic valve (20) and/or a pressure variation signal to the control circuit (30).

公开(公告)号：WO2019126742A1

公开(公告)日：2019-06-27

申请号：PCT/US2018/067278

申请日：2018-12-21

Applicant: MOFFITT, Roy Malcolm, Jr.

Inventor： MOFFITT, Roy Malcolm, Jr.

IPC: B67D7/36 ,  B67D7/52 ,  B67D7/04 ,  B67D7/78 ,  B67D7/72 ,  B67D7/58 ,  G05D16/20 ,  F04B53/16 ,  F04B47/04 ,  F04B53/10 ,  F04B49/22 ,  E21B43/26

Abstract: A refueling method for supplying fuel to at least one piece of fracturing equipment by installing a main fuel source at a fractionation operation, connecting the main fuel source to fracturing equipment to provide downhole fluids to the well, and connecting at least one pressurization unit to the main fuel source. The method includes using a supply coupling device for receiving fuel from one or more supply fuel lines in communication with the main fuel source and providing the fuel to a motor. The method includes using a return coupling device for receiving fuel from the motor and transferring the fuel through one or more return fuel lines to the main fuel source.