公开(公告)号：US20170218946A1

公开(公告)日：2017-08-03

申请号：US15500716

申请日：2015-07-06

Applicant: NIPPON PILLAR PACKING CO., LTD.

Inventor： Masateru YAMADA ,  Kazukiyo TESHIMA ,  Atsushi NAKANO ,  Daisuke URATA ,  Keiji NAGAE

IPC: F04B49/06 ,  F04B53/16 ,  F04B53/10 ,  F04B43/02 ,  F04B45/02

CPC classification number: F04B49/06 ,  F04B11/0058 ,  F04B43/026 ,  F04B43/08 ,  F04B43/10 ,  F04B43/1136 ,  F04B45/022 ,  F04B45/0733 ,  F04B49/065 ,  F04B53/10 ,  F04B53/16 ,  F04B2201/0201

Abstract: A bellows pump device includes first and second bellows mounted on a pump head so as to be expandable/contractible independently of each other and configured to suck a fluid from a suction passage thereinto by expansion thereof and discharge the fluid therefrom to a discharge passage by contraction thereof. First and second air cylinder portions are configured to respectively cause the first and second bellows to perform expansion/contraction operation. First and second detection devices are configured to detect expanded/contracted states of the first and second bellows, respectively. A control unit is configured to control drive of the first and second air cylinder portions on the basis of each of detection signals of the first and second detection devices such that, before one bellows comes into a most contracted state, the other bellows is caused to contract from a most expanded state.

公开(公告)号：US09695810B2

公开(公告)日：2017-07-04

申请号：US14317217

申请日：2014-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyoungseok Kang ,  Wonhyun Jung ,  Chulgi Roh ,  Jungwan Heo ,  Sangsub Jeong

IPC: F04B35/00 ,  F04B35/04 ,  F04B39/00 ,  F04B39/12

CPC classification number: F04B35/04 ,  F04B35/045 ,  F04B39/0044 ,  F04B39/12 ,  F04B2201/0201

Abstract: A linear compressor is provided. The linear compressor may include a shell having a refrigerant inlet, a cylinder provided within the shell, a piston that reciprocates within the cylinder to compress a refrigerant, a motor assembly that provides a drive force to the piston, a support provided for the magnet assembly, to support an end of a permanent magnet, and a frame engaged with the cylinder to support the motor assembly, and that includes a contact to absorb impact when the piston collides against the support.

公开(公告)号：US20170152850A1

公开(公告)日：2017-06-01

申请号：US15361117

申请日：2016-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Nayi RYU ,  Min Gu

IPC: F04B49/20 ,  F25B31/02 ,  F04B39/12 ,  F25B49/02 ,  F04B35/04 ,  F04B39/00

CPC classification number: F04B49/20 ,  F04B35/04 ,  F04B35/045 ,  F04B39/0005 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0401 ,  F04B2203/0402 ,  F25B31/023 ,  F25B49/022 ,  F25B49/025 ,  F25B2400/073 ,  F25B2500/19 ,  F25B2600/021 ,  F25B2700/21175 ,  Y02B30/741

Abstract: Disclosed are a compressor applied to a refrigerator not having a cycle matching function or a refrigerator not including a controller, and capable of controlling a driving of a linear motor by the compressor itself, and a method for controlling the same. The compressor installed at an apparatus including a refrigeration cycle includes: a piston which reciprocates in a cylinder; a linear motor configured to provide a driving force to move the piston; a sensor configured to sense a motor current of the linear motor; and a compressor controller configured to detect information related to a load of the apparatus, in a separated manner from a controller which controls a body of the apparatus, wherein the compressor controller calculates a phase difference between a stroke of the piston and the sensed motor current, and wherein the compressor controller controls a driving of the linear motor in correspondence to the detected load, such that the calculated phase difference is within a range of a reference phase difference.

公开(公告)号：US09651033B2

公开(公告)日：2017-05-16

申请号：US13813811

申请日：2011-08-01

Applicant: Nicola Pirri ,  Gennaro Paolo Bottino

Inventor： Nicola Pirri ,  Gennaro Paolo Bottino

IPC: F04B1/02 ,  F04B15/02

CPC classification number: F04B1/02 ,  F04B15/02 ,  F04B15/023 ,  F04B2201/02 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0204

Abstract: A pumping unit for a machine to distribute concrete includes a pair of cylinders provided with a relative pumping piston movable linearly for a determinate travel to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit operatively connected to both the cylinders, to determine an alternate pumping movement of the relative pumping pistons. The pumping unit includes at least a sensor member operatively associated to at least one of the cylinders in order to detect point-by-point one or more data relating to the operating condition of the pumping piston during its movement for the whole travel. The data includes at least one of position, speed, stress and direction of movement of the relative piston.

公开(公告)号：US20160356269A1

公开(公告)日：2016-12-08

申请号：US14732731

申请日：2015-06-07

Applicant: Dresser, Inc.

Inventor： Francisco Manuel Gutierrez ,  Robert Erling Fowler

IPC: F04B49/20 ,  F04B19/22 ,  G05B19/4155 ,  F04B39/12 ,  F04B53/16 ,  F04B53/14 ,  F04B17/03 ,  F04B35/04

CPC classification number: F04B49/20 ,  F04B17/03 ,  F04B17/044 ,  F04B19/22 ,  F04B35/04 ,  F04B35/045 ,  F04B39/0005 ,  F04B39/12 ,  F04B53/14 ,  F04B53/16 ,  F04B53/164 ,  F04B2201/0201 ,  G05B19/4155 ,  G05B2219/43193

Abstract: A pumping device configured to directly drive a reciprocating member to pump a fluid. In one embodiment, the pumping device comprises a body forming an internal chamber. The reciprocating member may be disposed in the body, the reciprocating member having a first end, a second end, and an axis. The embodiment may further include a drive system magnetically coupled with the reciprocating member, the drive system comprising a first conductive body affixed relative to the reciprocating member. The drive system may be configured to induce a first magnetic field by energizing the first conductive body. The reciprocating member may be configured to induce a second magnetic field in a manner that causes the reciprocating member to move between a first position and a second position to fill and evacuate the internal chamber with a fluid.

Abstract translation: 泵送装置，构造成直接驱动往复运动构件以泵送流体。 在一个实施例中，泵送装置包括形成内部室的主体。 往复运动构件可以设置在主体中，往复运动构件具有第一端，第二端和轴。 该实施例还可以包括与往复运动构件磁耦合的驱动系统，驱动系统包括相对于往复运动构件固定的第一导电体。 驱动系统可以被配置为通过激励第一导电体来引起第一磁场。 往复运动构件可以被构造成以使得往复运动构件在第一位置和第二位置之间移动的方式引起第二磁场，以用流体填充和抽空内部室。

公开(公告)号：US20160305420A1

公开(公告)日：2016-10-20

申请号：US15030996

申请日：2014-10-02

Applicant: LINDE AKTIENGESELLSCHAFT

Inventor： Robert Adler ,  Sascha Dorner ,  Marlin Pfandl ,  Ghristoph Nagl

IPC: F04B49/14 ,  F04B39/12 ,  F04B51/00 ,  F04B53/14 ,  F04B35/04 ,  F04B39/00

CPC classification number: F04B49/14 ,  F04B35/04 ,  F04B35/045 ,  F04B39/0027 ,  F04B39/125 ,  F04B49/065 ,  F04B49/12 ,  F04B49/16 ,  F04B51/00 ,  F04B53/14 ,  F04B2201/0201 ,  F04B2201/0804

Abstract: A method is disclosed for controlling knocking in a piston compressor and for a piston compressor (1) that is designed to carry out the method. The method is characterized in that, if a knocking noise made by a piston of the piston compressor hitting a cylinder head is detected by means of a structure-borne noise sensor provided on the piston compressor, the piston stroke of the piston compressor is decreased or, if no knocking noise is detected over a predefinable period of time, the piston stroke is increased.

Abstract translation: 公开了一种用于控制活塞式压缩机和用于实施该方法的活塞式压缩机（1）的爆震的方法。 该方法的特征在于，如果通过设置在活塞式压缩机上的结构传播的噪声传感器来检测由活塞式压缩机的活塞撞击气缸盖的爆震噪声，则活塞式压缩机的活塞行程减小或 ，如果在预定的时间段内没有检测到爆震噪声，则活塞冲程增加。

公开(公告)号：US09470225B2

公开(公告)日：2016-10-18

申请号：US14518250

申请日：2014-10-20

Applicant: General Electric Company

Inventor： Eric K. Watson ,  Richard Dana Brooke ,  Timothy Neal Johnson ,  Meher Prasadu Kollipara

IPC: F04B51/00 ,  G01R25/00 ,  G01R31/34

CPC classification number: F04B51/00 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0201 ,  F04C18/356 ,  F04C23/02 ,  F04C28/28 ,  F04C29/0085 ,  F04C2270/075 ,  G01R25/00 ,  G01R25/005 ,  G01R31/34

Abstract: Compressors and methods for determining optimal parking positions for compressor pistons are provided. A method includes performing a current value evaluation for an initial time during operation of a motor of the compressor. Performing the current value evaluation includes measuring a motor current value at the time and comparing the motor current value to an existing optimal parking current value. Performing the current value evaluation further includes modifying the existing optimal parking current value to the motor current value when the motor current value exceeds or is equal to the existing optimal parking current value.

Abstract translation: 提供了用于确定压缩机活塞的最佳停车位置的压缩机和方法。 一种方法包括在压缩机的电动机的操作期间执行初始时间的当前值评估。 执行当前值评估包括测量当前的电动机电流值，并将电动机电流值与现有的最佳停车电流值进行比较。 执行当前值评估还包括当电动机电流值超过或等于现有最佳停车电流值时，将现有最佳停车电流值修改为电动机电流值。

公开(公告)号：US20160273528A1

公开(公告)日：2016-09-22

申请号：US15075195

申请日：2016-03-20

Applicant: Baker Hughes Incorporated

Inventor： Gary Williams ,  Evan G. MacKay

IPC: F04B49/20 ,  F04B47/06 ,  F04B17/03 ,  F04B51/00 ,  E21B43/12 ,  F04B19/22

CPC classification number: F04B49/20 ,  E21B43/128 ,  F04B17/03 ,  F04B47/06 ,  F04B51/00 ,  F04B2201/0201

Abstract: Systems and methods for controlling downhole linear motors to minimize connections to surface equipment. In one embodiment, an ESP system is coupled by a power cable to equipment at the surface of a well. The ESP system includes a linear motor and a reciprocating pump. The motor has a set of position sensors that sense the position of a mover in the motor. Combining circuitry (E.G., XOR gate) combines the outputs of the position sensors into a single composite signal in which signal components corresponding to the position sensors are indistinguishable. A single channel carries the composite signal from the ESP system to the surface equipment. A control system determines a starting position of the motor and determines its subsequent position based on transitions in the composite signal. The motor is then operated based on the position determined from the composite signal.

Abstract translation: 用于控制井下线性电机的系统和方法以最小化与地面设备的连接。 在一个实施例中，ESP系统通过电力电缆耦合到井的表面处的设备。 ESP系统包括线性马达和往复泵。 电动机具有一组位置传感器，用于感测电动机中动子的位置。 组合电路（E.G.，XOR门）将位置传感器的输出组合成单个复合信号，其中对应于位置传感器的信号分量是不可区分的。 单通道将ESP系统的复合信号传送到地面设备。 控制系统确定电动机的起始位置，并根据复合信号中的转换确定其后续位置。 然后基于从复合信号确定的位置来操作电动机。

公开(公告)号：US20160108939A1

公开(公告)日：2016-04-21

申请号：US14557867

申请日：2014-12-02

Applicant: BHDT GmbH

Inventor： Franz TRIEB ,  Rene STUEHLINGER ,  Rene MODERER

IPC: F15B15/14

CPC classification number: F15B15/149 ,  B26F3/004 ,  B26F2003/006 ,  F04B9/113 ,  F04B17/03 ,  F04B23/02 ,  F04B23/06 ,  F04B49/022 ,  F04B49/06 ,  F04B49/20 ,  F04B53/08 ,  F04B2201/0201 ,  F04B2205/06

Abstract: Hydraulic drive for pressure booster of a high-pressure apparatus, having an electric servo drive effectively connected to electrical supply operable to be regulated and/or switched by measurement signals; a hydraulic pump, pumping a constant volume of working fluid per revolution, and driven by the electric servo drive, and measuring devices for a pressure and/or a pressure trend of the working fluid and/or a pressure and/or a pressure trend of the high-pressure fluid and/or for a position of a piston in the pressure booster. Servo drive is embodied bidirectionally, such that an application of working fluid to the pressure booster is reversible. Control of regulating and/or switching parameters of the electrical supply of the servo drive is based on signals from the measuring devices for the pressure and/or the pressure trend of the working fluid and/or the high-pressure fluid and/or for the position of the piston in the pressure booster.

Abstract translation: 一种用于高压装置的增压器的液压驱动器，其具有有效地连接到电源的电动伺服驱动器，可操作地由测量信号进行调节和/或切换; 液压泵，每转一次泵送恒定体积的工作流体，并由电动伺服驱动器驱动，以及用于工作流体的压力和/或压力趋势的测量装置和/或压力和/或压力趋势 高压流体和/或用于增压器中的活塞的位置。 伺服驱动器双向实现，使得工作流体施加到增压器是可逆的。 伺服驱动器的电源的调节和/或切换参数的控制基于来自测量装置的用于工作流体和/或高压流体的压力和/或压力趋势的信号和/或用于 活塞在增压器中的位置。

公开(公告)号：US20160008834A1

公开(公告)日：2016-01-14

申请号：US14679178

申请日：2015-04-06

Applicant: Graco Minnesota Inc.

Inventor： Mark J. Brudevold ,  Benjamin R. Godding ,  Joseph E. Tix ,  Daniel P. Ross

IPC: B05B12/12 ,  F04B17/00 ,  B05B12/00 ,  F04B53/14 ,  F04B53/10 ,  F04B19/22 ,  F04B49/02

CPC classification number: B05B12/122 ,  B05B7/166 ,  B05B7/1693 ,  B05B9/0409 ,  B05B9/0423 ,  B05B12/006 ,  B05B12/085 ,  B05C5/002 ,  B05C11/1042 ,  B05C11/1044 ,  F04B17/00 ,  F04B19/22 ,  F04B49/02 ,  F04B49/06 ,  F04B49/065 ,  F04B53/10 ,  F04B53/144 ,  F04B2201/0201 ,  F04B2205/09

Abstract: A pump system for pumping a fluid includes a motor housing, a motor, a rod, a positive displacement pump, a position sensor, and a controller. The motor is located within the motor housing. The rod is connected to and driven by the motor and the positive displacement pump for moving a fluid is driven by the rod. The position sensor produces a rod position signal that is a function of a position of the rod, and the controller produces a drive signal for driving the motor as a function of the rod position signal.

Abstract translation: 用于泵送流体的泵系统包括马达壳体，马达，杆，正排量泵，位置传感器和控制器。 电机位于电机外壳内。 杆被马达连接并由马达驱动，用于移动流体的容积泵由杆驱动。 位置传感器产生作为杆的位置的函数的杆位置信号，并且控制器根据杆位置信号产生用于驱动马达的驱动信号。