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公开(公告)号：US20230366596A1
公开(公告)日：2023-11-16
申请号：US18226077
申请日：2023-07-25
Applicant: Copeland Comfort Control LP
Inventor： Thomas P. BUESCHER , Gregory E. SISK , Charles P. KETTERER , Frank S. WALLIS
CPC classification number: F25B41/006 , F04B49/02 , F04B2201/0803 , F25B2400/077 , F25B2500/26
Abstract: The present disclosure relates to controls and related methods for mitigating liquid (e.g., compressor refrigerant, etc.) migration and/or floodback.
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公开(公告)号：US11686301B2
公开(公告)日：2023-06-27
申请号：US16822376
申请日：2020-03-18
Applicant: Northern Tool & Equipment Company, Inc.
Inventor： Matthew R. Pilcher , Timothy Rancourt
CPC classification number: F04B43/009 , F04B43/04 , F04B49/02 , F04B17/03 , F04B43/0045 , F04B49/10 , F04B2201/0208 , F04B2201/0803 , F04B2207/701 , F04B2207/702 , F04B2207/703
Abstract: An electric diaphragm pump having a pump head assembly in a first housing, a motor assembly in a second housing, a fluid sensor, and a leak alert system and/or pump shut-off system. The fluid sensor detects a presence of fluid which has leaked outside of a pump chamber and is located within a cavity of the diaphragm drive chamber. The leak alert system indicates that fluid has been detected by the fluid sensor and the shut-off control system stops operation of the pump based on fluid being detected by the fluid sensor.
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公开(公告)号：US09562528B2
公开(公告)日：2017-02-07
申请号：US14353859
申请日：2012-05-29
Applicant: Oliver Warren
Inventor： Oliver Warren
CPC classification number: F04B43/0081 , F04B43/009 , F04B43/12 , F04B43/1238 , F04B49/10 , F04B53/16 , F04B2201/0803 , F04B2207/70
Abstract: A peristaltic pump is provided comprising a drive unit, a pumphead comprising a pressing element. The pumphead is connectable to the drive unit such that, when connected, the pressing element is driveable by the drive unit to exert a peristaltic action on a tube arranged within the pumphead. The pumphead further comprises an optical sensor, wherein the optical sensor comprises an emitter and a receiver which are mounted on the drive unit and a reflector element mounted on the pumphead. The reflector element is arranged on the pumphead such that when the pumphead is connected to the drive unit, radiation emitted by the emitter is reflected by the reflector element towards the receiver.
Abstract translation: 蠕动泵设置有驱动单元，泵头包括按压元件。 泵头可连接到驱动单元，使得当连接时，按压元件可由驱动单元驱动，以对布置在泵头内的管施加蠕动作用。 泵头还包括光学传感器，其中光学传感器包括安装在驱动单元上的发射器和接收器以及安装在泵头上的反射器元件。 反射器元件布置在泵头上，使得当泵头连接到驱动单元时，由发射器发射的辐射由反射器元件朝向接收器反射。
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公开(公告)号：US20140294633A1
公开(公告)日：2014-10-02
申请号：US14353807
申请日：2012-05-29
Applicant: Watson-Marlow Limited
Inventor： Steven Brokenshire
IPC: F04B43/12
CPC classification number: F04B43/1238 , F04B19/20 , F04B43/0081 , F04B43/009 , F04B43/084 , F04B43/12 , F04B43/1253 , F04B49/10 , F04B53/16 , F04B2201/0803 , F04B2207/70
Abstract: A peristaltic pumphead is provided that has a pumping chamber within which is disposed a pressing element for exerting a peristaltic action on a tube extending within the pumping chamber, and an auxiliary chamber which in normal use is a dry chamber. The pumping chamber and the auxiliary chamber are arranged in fluid communication such that liquid which escapes from the tube into the pumping chamber flows from the pumping chamber into the auxiliary chamber.
Abstract translation: 提供了一种蠕动泵头，其具有泵送室，在该腔室内设置有用于对在泵送室内延伸的管施加蠕动作用的按压元件，以及在正常使用中为干燥室的辅助室。 泵送室和辅助室布置成流体连通，使得从管排出到泵送室的液体从泵送室流入辅助室。
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公开(公告)号：US08412472B2
公开(公告)日：2013-04-02
申请号：US12674381
申请日：2008-07-25
Applicant: Age Kyllingstad
Inventor： Age Kyllingstad
IPC: G01F17/00
CPC classification number: G01M3/26 , F04B51/00 , F04B2201/0208 , F04B2201/0605 , F04B2201/0803
Abstract: A method for detection of a fluid leak related to at least one piston machine (1), where the method includes: —attaching a pressure sensor (18, 24) to at least a pressure side of the at least one piston machine (1); —measuring the pressure on the pressure side of the at least one piston machine (1); —attaching a transmitter (28) to the at least one piston machine (1), said transmitter (28) rendering a signal for calculating the rotational speed of the at least one piston machine (1); —calculating the speed of the at least one piston machine (1); —calculating the sum of nominal flow rates from all piston machines (1); —calculating a flow rate compensation factor; —calculating a normalized pressure (42) to be equal to the discharge pressure multiplied by the said compensation factor for the flow rate; and —monitoring the normalized pressure (42) to detect a leakage.
Abstract translation: 一种用于检测与至少一个活塞机（1）相关的流体泄漏的方法，其中所述方法包括：将压力传感器（18,24）附接到所述至少一个活塞机器（1）的至少一个压力侧， ; - 测量所述至少一个活塞机（1）的压力侧的压力; 将发射器（28）附接到所述至少一个活塞机器（1），所述发射器（28）呈现用于计算所述至少一个活塞机器（1）的转速的信号; 计算所述至少一个活塞机器（1）的速度; 计算所有活塞机（1）的额定流量的总和; 计算流量补偿系数; 将归一化压力（42）计算为等于排出压力乘以所述用于流量的所述补偿因子; 并监测归一化压力（42）以检测泄漏。
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Patent Agency Ranking
公开(公告)号：EP1826408B1
公开(公告)日：2018-08-22
申请号：EP07250722.1
申请日：2007-02-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Parsons, Douglas A. , Alstrin, Kevin E.
CPC classification number: F04B51/00 , F04B49/065 , F04B2201/0803 , F04B2203/0201 , F04B2203/0209 , F04C14/08 , F04C2220/24 , F04C2240/81 , F04C2270/80 , F04C2270/86
Abstract: A metering pump (18) incorporates a method of relating inner loop current to a pump output pressure. Pump/motor speed, which correlates to current, is measured and controlled by a system controller (12). System temperature is also measured by the system controller (12). The controller (12) monitors the measured system temperature and provides for compensation for system losses, including inductive-resistive (IR) losses, and for density and viscosity shifts, within a pre-determined allowable system temperature operating range. An initial system calibration is conducted using a "shut-off" test, where the metering pump is run at a very slow known speed while the system is shut-off. After initial start-up, a health-monitoring feature continues to monitor the current as an indicator of pump performance and continuously adjusts a motor speed to maintain a desired level of pump performance. This provides the system with the ability to compensate for performance losses, including performance losses due to variations in operating conditions, and to compensate for pump wear.
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公开(公告)号：EP2188609A1
公开(公告)日：2010-05-26
申请号：EP08793888.2
申请日：2008-07-25
Applicant: National Oilwell Norway AS
Inventor： KYLLINGSTAD, Åge
CPC classification number: G01M3/26 , F04B51/00 , F04B2201/0208 , F04B2201/0605 , F04B2201/0803
Abstract: A method for detection of a fluid leak related to at least one piston machine (1), where the method includes: - attaching a pressure sensor (18, 24) to at least a pressure side of the at least one piston machine (1); - measuring the pressure on the pressure side of the at least one piston machine (1); - attaching a transmitter (28) to the at least one piston ma-chine (1), said transmitter (28) rendering a signal for cal-culating the rotational speed of the at least one piston ma-chine (1); - calculating the speed of the at least one piston machine (1); - calculating the sum of nominal flow rates from all piston machines(1); - calculating a flow rate compensation factor; - calculating a normalized pressure (42) to be equal to the discharge pressure multiplied by the said compensation factor for the flow rate; and - monitoring the normalized pressure (42) to detect a leak-age.
Abstract translation: 1。一种用于检测与至少一个活塞机器（1）相关的流体泄漏的方法，其中所述方法包括： - 将压力传感器（18,24）附接到所述至少一个活塞机器（1）的至少一个压力侧， ; - 测量所述至少一个活塞式机器（1）的压力侧上的压力; - 将发射器（28）附接到所述至少一个活塞机（1），所述发射器（28）呈现用于计算所述至少一个活塞机（1）的旋转速度的信号; - 计算所述至少一个活塞式机器（1）的速度; - 计算来自所有活塞机器（1）的额定流量的总和; - 计算流量补偿因子; - 计算归一化压力（42），使其等于排出压力乘以流量的所述补偿因子; 和 - 监测归一化压力（42）以检测泄漏年龄。
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38.发明公开BIMODAL LIQUID CHROMATOGRAPHY PUMP EMPLOYING ARTIFICIAL INTELLIGENCE LOGIC FEEDBACK CONTROL 失效BI MODAL用于液体使用智能控制的基于逻辑反馈
公开(公告)号：EP0777887A1
公开(公告)日：1997-06-11
申请号：EP95930788.0
申请日：1995-08-02
Applicant: DIONEX CORPORATION
Inventor： WOLZE, David, A.
CPC classification number: G05D7/0682 , F04B49/065 , F04B49/20 , F04B2201/0803 , F04B2205/05 , F04B2205/09 , F04B2207/041 , F04B2207/042 , G01N30/32 , G01N2030/324 , G01N2030/326
Abstract: Flowrate in a liquid chromatography precision pump (100) employs a digital control system (128) with artificial intelligence (150). In a default flow mode, pump motor speed is controlled without using real-time pressure feedback, which speed in a pressure mode is controlled using the pump system pressure point. Pressure mode is commanded by the artificial intelligence (150) when constant displacement flow measurement time is within a desired threshold and when the higher pressure piston (34a or 34B), which is used as a constant displacement flow measurement reference, is being measured. Flow mode pressure ripple is minimized by monitoring pressure points and commanding motor (18) speed change at appropriate rotation positions of a motor shaft (24) mounted cam. In pressure mode, the artificial intelligence (150) monitors for intake cycle oscillation and optimizes a highest system pressure gain dynamically. Constant flowrate proportion is provided by activating proportioning only during a constant intake flow portion of an intake cycle.
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公开(公告)号：EP2771578B1
公开(公告)日：2017-07-12
申请号：EP12727162.5
申请日：2012-05-29
Applicant: WATSON-MARLOW LIMITED
Inventor： WARREN, Oliver
CPC classification number: F04B43/0081 , F04B43/009 , F04B43/12 , F04B43/1238 , F04B49/10 , F04B53/16 , F04B2201/0803 , F04B2207/70
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公开(公告)号：EP1826408A3
公开(公告)日：2010-12-22
申请号：EP07250722.1
申请日：2007-02-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Parsons, Douglas A. , Alstrin, Kevin E.
CPC classification number: F04B51/00 , F04B49/065 , F04B2201/0803 , F04B2203/0201 , F04B2203/0209 , F04C14/08 , F04C2220/24 , F04C2240/81 , F04C2270/80 , F04C2270/86
Abstract: A metering pump (18) incorporates a method of relating inner loop current to a pump output pressure. Pump/motor speed, which correlates to current, is measured and controlled by a system controller (12). System temperature is also measured by the system controller (12). The controller (12) monitors the measured system temperature and provides for compensation for system losses, including inductive-resistive (IR) losses, and for density and viscosity shifts, within a pre-determined allowable system temperature operating range. An initial system calibration is conducted using a "shut-off" test, where the metering pump is run at a very slow known speed while the system is shut-off. After initial start-up, a health-monitoring feature continues to monitor the current as an indicator of pump performance and continuously adjusts a motor speed to maintain a desired level of pump performance. This provides the system with the ability to compensate for performance losses, including performance losses due to variations in operating conditions, and to compensate for pump wear.
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