公开(公告)号：US20240117801A1

公开(公告)日：2024-04-11

申请号：US18276160

申请日：2022-01-19

Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

Inventor： Ichiro YOGO ,  Kosuke UEDA

IPC: F04B39/12 ,  F04B37/18

CPC classification number: F04B39/121 ,  F04B37/18 ,  F04B2201/0803

Abstract: The purpose of the present invention is to improve insulating properties. This terminal unit (30) comprises: a plate-shaped base unit (40); a plate-shaped insulation unit (51) and a fitting insulation unit (52) that cover the plate surface of the base unit; a terminal (70) that extends in the Z axis direction, which is the direction intersecting the plate surface of the base unit (40), and penetrates the base unit (40) and the plate-shaped insulation unit (51); and an upper cylinder insulation unit (53) that extends along the Z axis direction from the plate-shaped insulation unit (51) and covers the side surface of the terminal (70). The plate-shaped insulation unit (51) and the upper cylinder insulation unit (53) are formed integrally.

公开(公告)号：US20180298892A1

公开(公告)日：2018-10-18

申请号：US15956684

申请日：2018-04-18

Applicant: CHRIS BUCKLEY

Inventor： CHRIS BUCKLEY

IPC: F04B53/00 ,  F04B19/22

CPC classification number: F04B53/00 ,  F04B19/22 ,  F04B53/16 ,  F04B53/22 ,  F04B2201/0803

Abstract: A sealed nut assembly includes a nut portion and a plug portion integrally formed together as a single unit. The nut assembly is configured to seal a bore hole in a fluid end and prevent leakage of working fluid therein. The assembly includes a nut portion and a plug portion. The nut portion and plug portion are inserted and removed together. The nut portion engages the fluid end prior to the setting of the plug portion. A seal groove is included in the plug portion to locate one or more seals. The contact surface between the nut assembly and the fluid end is tapered.

公开(公告)号：US20190154022A1

公开(公告)日：2019-05-23

申请号：US16169189

申请日：2018-10-24

Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)

Inventor： Kenji NAGURA ,  Takayuki FUKUDA ,  Ryosuke YAMASAKI ,  Tomohiro OOTSUKA

IPC: F04B25/00 ,  F04B25/02 ,  F04B25/04 ,  F04B27/12 ,  F04B53/14

CPC classification number: F04B25/005 ,  F04B25/02 ,  F04B25/04 ,  F04B27/12 ,  F04B37/12 ,  F04B53/14 ,  F04B2201/0208 ,  F04B2201/0803

Abstract: The present application discloses a compressor including a crank shaft, a first reciprocation converter, a first cylinder body, a first pressurizing portion, a second reciprocation converter, which is connected to the crank shaft with a phase different by 180 degrees from the first reciprocation converter, a second cylinder body, a second pressurizing portion, and a connecting portion configured to interconnect the compression chambers. The compression chambers are arranged so that a timing at which the gas is discharged from a specific compression chamber among the compression chambers becomes the same as a timing at which the discharged gas is suctioned into another compression chamber at a higher side by one stage than the specific compression chamber.

公开(公告)号：US07798781B2

公开(公告)日：2010-09-21

申请号：US11359191

申请日：2006-02-22

Applicant: Douglas A. Parsons ,  Kevin E. Alstrin

Inventor： Douglas A. Parsons ,  Kevin E. Alstrin

IPC: F04B49/00

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 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. System temperature is also measured by the system controller. The controller 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.

Abstract translation: 计量泵结合了内部回路电流与泵输出压力相关联的方法。 与电流相关的泵/电机速度由系统控制器测量和控制。 系统温度也由系统控制器测量。 控制器监控测量的系统温度，并提供系统损耗的补偿，包括电感电阻（IR）损耗以及在预定的允许系统温度工作范围内的密度和粘度变化。 使用“关闭”测试进行初始系统校准，其中计量泵在系统关闭时以非常慢的已知速度运行。 初次启动后，健康监测功能将继续监测当前的水泵性能指标，并持续调整电机转速以保持所需的泵性能水平。 这为系统提供了补偿性能损失的能力，包括由于操作条件的变化而导致的性能损失，并补偿了泵的磨损。

公开(公告)号：US20070196213A1

公开(公告)日：2007-08-23

申请号：US11359191

申请日：2006-02-22

Applicant: Douglas Parsons ,  Kevin Alstrin

Inventor： Douglas Parsons ,  Kevin Alstrin

IPC: F04B49/10

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 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. System temperature is also measured by the system controller. The controller 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.

Abstract translation: 计量泵结合了内部回路电流与泵输出压力相关联的方法。 与电流相关的泵/电机速度由系统控制器测量和控制。 系统温度也由系统控制器测量。 控制器监控测量的系统温度，并提供系统损耗的补偿，包括电感电阻（IR）损耗以及在预定的允许系统温度工作范围内的密度和粘度变化。 使用“关闭”测试进行初始系统校准，其中计量泵在系统关闭时以非常慢的已知速度运行。 初次启动后，健康监测功能将继续监测当前的水泵性能指标，并持续调整电机转速以保持所需的泵性能水平。 这为系统提供了补偿性能损失的能力，包括由于操作条件的变化而导致的性能损失，并补偿泵的磨损。

公开(公告)号：US11754067B2

公开(公告)日：2023-09-12

申请号：US17290477

申请日：2018-11-02

Applicant: QUANTUM SERVO PUMPING TECHNOLOGIES PTY LTD

Inventor： Darren Reukers ,  Peter Harding

IPC: F04B49/10 ,  F04B51/00

CPC classification number: F04B49/10 ,  F04B51/00 ,  F04B2201/0204 ,  F04B2201/0208 ,  F04B2201/0605 ,  F04B2201/0801 ,  F04B2201/0803 ,  F04B2203/0201 ,  F04B2205/03

Abstract: A pump including one or more pumping chambers, one or more drive mechanisms for driving the one or more pumping chambers and a logic arrangement. The first pumping chamber of the one or more pumping chambers has a first inlet check valve, a first outlet check valve and a first temperature sensor. The logic arrangement is configured to identify a leak by applying logic to at least resistance-data indicative of a resistance of the first pumping chamber to the driving and temperature-data at least based on output from the first temperature sensor.

公开(公告)号：US11732701B2

公开(公告)日：2023-08-22

申请号：US17401934

申请日：2021-08-13

Applicant: Danfoss A/S

Inventor： Tianlei Li ,  Lin Sun ,  Mihai Bogdan Dobrica

IPC: F04B7/00 ,  F04B43/00 ,  F16J15/3288 ,  F25B11/04

CPC classification number: F04B7/0088 ,  F04B43/009 ,  F16J15/3288 ,  F25B11/04 ,  F04B2201/0803

Abstract: A centrifugal compressor for HVAC application includes a rotary component rotatable about an axis, a static component, and a brush seal fixed to one of the static component and the rotary component. The brush seal includes bristles that contact the other of the static component and the rotary component.

公开(公告)号：US11719359B2

公开(公告)日：2023-08-08

申请号：US17450218

申请日：2021-10-07

Applicant: PSG CALIFORNIA LLC

Inventor： Erik Nathaniel Solfelt ,  Mehrab Mumin Choudhury ,  Brian Richard Binder ,  Leonard Galvan ,  Christopher H. Verdugo ,  Christopher Jon Distaso ,  Samuel Vanderpoel Gilbert, V

IPC: F16K37/00 ,  F04B43/00 ,  F04B43/02

CPC classification number: F16K37/0083 ,  F04B43/009 ,  F04B43/02 ,  F16K37/0091 ,  F04B2201/0803 ,  Y10T137/3084 ,  Y10T137/5907 ,  Y10T137/8342

Abstract: In one general aspect, the present application relates to a leak detection device that includes a body, a liquid separator, and a liquid level detector. The body includes an airflow inlet, an airflow outlet, and a liquid reservoir. The airflow outlet is arranged to substantially align with the airflow inlet. The liquid reservoir is formed in a bottom portion of the body. The liquid separator is positioned directly between the airflow inlet and the airflow outlet. The liquid separator divides an airflow path from the airflow inlet to the airflow outlet into at least two separate flow paths around the liquid separator. The liquid level detector is at least partially contained within a channel defined within a lower portion of the liquid separator, where the channel is in liquid communication with the liquid reservoir.

公开(公告)号：US20140294608A1

公开(公告)日：2014-10-02

申请号：US14353859

申请日：2012-05-29

Applicant: Oliver Warren

Inventor： Oliver Warren

IPC: F04B43/00 ,  F04B43/12

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 pumhead 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。 斩波器还包括光学传感器，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。

公开(公告)号：US20110046902A1

公开(公告)日：2011-02-24

申请号：US12674381

申请日：2008-07-25

Applicant: Age Kyllingstad

Inventor： Age Kyllingstad

IPC: G06F19/00 ,  G01M3/00

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。