公开(公告)号：US11795938B2

公开(公告)日：2023-10-24

申请号：US17975502

申请日：2022-10-27

申请人： Dover Fueling Solutions UK Limited

发明人： Gustaf Gustafsson

IPC分类号： F04B49/06 ,  B67D7/04 ,  F04B17/04 ,  F04B35/04 ,  H02P25/032 ,  F02D41/20

CPC分类号： F04B49/06 ,  B67D7/0476 ,  B67D7/0486 ,  F04B17/04 ,  F04B17/044 ,  F04B35/045 ,  F04B49/065 ,  H02P25/032 ,  F02D2041/2058 ,  F04B2203/0401 ,  F04B2203/0402

摘要： The invention relates to a method for controlling a linear pump of a vapour recovery system in a fuel dispensing unit. The linear pump is flow controlled by a signal. The method comprises applying a known voltage to a solenoid coil of the linear pump for a predetermined time period, measuring a current consumption of the solenoid coil during the predetermined time period, and adjusting the signal based on the measured current consumption. The invention also relates to a vapour recovery system for recovering vapour from a motor vehicle tank via a fuel dispensing nozzle to a vapour tank.

公开(公告)号：US20180320673A1

公开(公告)日：2018-11-08

申请号：US15771494

申请日：2016-10-31

申请人： Aspen Pumps Limited

发明人： Gary Haffenden

IPC分类号： F04B17/04 ,  F04B35/04 ,  F04B49/06

CPC分类号： F04B17/046 ,  F04B17/04 ,  F04B35/045 ,  F04B49/065 ,  F04B2203/0402 ,  F04B2203/0404

摘要： A method of driving a solenoid pump of the type comprising a metal shuttle urged by a solenoid against a spring with the spring providing the force for the pumping stroke of the shuttle is disclosed. The method comprises applying a periodic driving voltage to the solenoid. Each period of the driving voltage comprises a first portion during which the driving voltage increases from a minimum voltage to a maximum voltage to compress the spring, a second portion during which the driving voltage decreases from the maximum voltage to the minimum voltage to release the spring, and a third portion during which the driving voltage is maintained at the minimum voltage. The duration of the second portion is substantially less than the duration of the first portion and may be substantially instantaneous. The driving voltage increases from the minimum voltage to the maximum voltage substantially linearly during the first portion, such that the driving voltage has a sawtooth waveform.

公开(公告)号：US20180195509A1

公开(公告)日：2018-07-12

申请号：US15857369

申请日：2017-12-28

申请人： LG Electronics Inc.

发明人： Sungjin LIM ,  Gyunam KIM ,  Nayi RYU

IPC分类号： F04B49/06 ,  F04B35/04 ,  F04B49/22 ,  G05B17/02

CPC分类号： F04B49/065 ,  F04B35/04 ,  F04B49/06 ,  F04B49/22 ,  F04B2201/0201 ,  F04B2203/0401 ,  F04B2203/0402 ,  G05B17/02

摘要： Provided is a linear compressor capable of reducing noise and manufacturing cost. The linear compressor includes a piston reciprocating within a cylinder, a motor providing a driving force for movement of the piston, a sensing unit sensing a motor voltage and a motor current related to the motor, a discharge part installed at one end of the cylinder and adjusting discharge of a refrigerant compressed within the cylinder, and a controller detecting a load variation of the motor using at least one of the motor voltage and the motor current, calculating a compensation value related to a position of the piston each time a load variation of the motor is detected, and detecting an absolute position of the piston using the calculated compensation value.

公开(公告)号：US20180023557A1

公开(公告)日：2018-01-25

申请号：US15546302

申请日：2015-09-04

申请人： Robert Bosch GmbH

发明人： Andrea Krusch ,  Andreas Gutscher ,  Siamend Flo ,  Thorsten Allgeier ,  Walter Maeurer

IPC分类号： F04B49/06 ,  F04B17/04 ,  F04B19/22

CPC分类号： F04B49/06 ,  F02D41/20 ,  F02D41/2464 ,  F02D41/3082 ,  F02D2041/2037 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2041/2058 ,  F04B17/04 ,  F04B17/044 ,  F04B19/22 ,  F04B35/045 ,  F04B49/065 ,  F04B53/14 ,  F04B53/16 ,  F04B2201/0201 ,  F04B2203/0401 ,  F04B2203/0402

摘要： The invention relates to a method for operating a piston pump (10) which is driven by means of a coil (1) of an electromagnet. A piston (2) of the piston pump (10) can be moved in a cylinder (3) for pumping purposes by means of the electromagnet. A voltage (U) is applied to the coil (1) during a switch-on period such that a current flows through the coil (1) and the piston (2) is accelerated, said voltage being applied by means of an actuation device (11). A time curve of an electric state variable (I, U) of the coil (1) is qualitatively detected, and the curve or a curve derived therefrom is analyzed in order to detect an impact of the piston (2) against a stop. The invention further relates to an actuation device and a piston pump.

公开(公告)号：US20170218942A1

公开(公告)日：2017-08-03

申请号：US15409960

申请日：2017-01-19

申请人： MICROJET TECHNOLOGY CO., LTD.

发明人： Shih-Chang Chen ,  Chi-Feng Huang ,  Yung-Lung Han ,  Jia-Yu Liao ,  Shou-Hung Chen ,  Che-Wei Huang ,  Hung-Hsin Liao ,  Chao-Chih Chen ,  Jheng-Wei Chen ,  Ying-Lun Chang ,  Chia-Hao Chang ,  Wei-Ming Lee

IPC分类号： F04B45/047 ,  F04B53/10 ,  H01L41/053 ,  H01L41/09 ,  H01L41/187

CPC分类号： F04B45/047 ,  F04B43/046 ,  F04B53/10 ,  F04B2203/0402 ,  F04B2203/0404 ,  F04B2205/05 ,  F16K99/0015 ,  F16K99/0048 ,  F16K2099/0094

摘要： A miniature fluid control device includes a piezoelectric actuator and a housing. The piezoelectric actuator comprises a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate and has a length not larger than that of the suspension plate. The housing includes a gas collecting plate and a base. The gas collecting plate is a frame body with a sidewall and comprises a plurality of perforations. The base seals a bottom of the piezoelectric actuator and has a central aperture corresponding to the middle portion of the suspension plate. When the voltage is applied to the piezoelectric actuator, the suspension plate is permitted to undergo the curvy vibration, the fluid is transferred from the central aperture of the base to the gas-collecting chamber, and exited from the perforations.

公开(公告)号：US09599103B2

公开(公告)日：2017-03-21

申请号：US13637680

申请日：2011-02-24

申请人： Gunter Galtz

发明人： Gunter Galtz

IPC分类号： F04B35/04 ,  F04B49/06 ,  F04B17/03

CPC分类号： F04B17/03 ,  F04B35/045 ,  F04B49/06 ,  F04B49/065 ,  F04B2201/0204 ,  F04B2203/0402

摘要： A method for operating a vehicle heater dosing pump for conveying fuel having a piston which can be moved back and forth between a start position and an end position, and a drive unit which can be electrically excited by applying a voltage, having the following procedure: controlling and/or regulating the voltage for generating an effective voltage to transfer the piston from the start position to the end position, wherein the effective voltage reaches a first maximum (U1) in a start phase (t0-t1), and is lower than the first maximum in a subsequent intermediate phase (t1-t2). The effective voltage reaches a second maximum (U3) in an end phase (t2-t3) following the intermediate phase. A device is also provided having a dosing pump and a control/regulation unit. The control/regulation unit is suitable for controlling voltage applied to a drive unit of the dosing pump.

公开(公告)号：US09547293B2

公开(公告)日：2017-01-17

申请号：US14321216

申请日：2014-07-01

申请人： Xavitech AB

发明人： Johan Stenberg

IPC分类号： F04B43/04 ,  G05B15/02 ,  H02K33/10 ,  F04B43/00 ,  F04B13/00 ,  F04B49/06

CPC分类号： G05B15/02 ,  F04B13/00 ,  F04B43/0081 ,  F04B43/04 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0402 ,  H02K11/22 ,  H02K33/10

摘要： A control system and method for controlling electromagnetic drive pumps as, for example, electromagnetic driven membrane pumps are provided in which the control system is formed by at least one microprocessor and at least one sensor, whose microprocessor controls the power supply to at least one electromagnet whose changes in emitted magnetic field causes at least one moving part, directly or indirectly, to perform an oscillating pumping movement. The control system includes at least one positioning sensor which senses the moving part's position in the electromagnetic driven pump. By using the positioning sensor's measurements, the pump can be controlled with great accuracy.

摘要翻译： 提供了一种用于控制例如电磁驱动膜泵的电磁驱动泵的控制系统和方法，其中控制系统由至少一个微处理器和至少一个传感器形成，微处理器控制至少一个电磁体的电力供应 其发射磁场的变化使至少一个运动部分直接或间接地进行振荡泵送运动。 控制系统包括至少一个定位传感器，其感测电动驱动泵中的移动部件的位置。 通过使用定位传感器的测量，可以高精度地控制泵。

公开(公告)号：US09441621B2

公开(公告)日：2016-09-13

申请号：US13444408

申请日：2012-04-11

申请人： Jaeyoo Yoo ,  Taewoong Nah

发明人： Jaeyoo Yoo ,  Taewoong Nah

IPC分类号： F04B17/04 ,  F04B35/04 ,  F04B41/06 ,  F04B49/06

CPC分类号： F04B35/045 ,  F04B41/06 ,  F04B49/06 ,  F04B2203/0401 ,  F04B2203/0402 ,  F04B2203/0404

摘要： A machine includes at least two compressors that is controlled by a compressor controlling apparatus. By using an inverter for the at least two compressors, the use of elements is minimized and the compressor capacity may be increased, and the operation efficiency of the system may be enhanced. As an example, a plurality of operation modes may be used according to a load or cooling capacity of the two compressors. The two compressors are separately or simultaneously operated by using the inverter, thus simplifying the configuration of the system, and reducing cost.

摘要翻译： 机器包括由压缩机控制装置控制的至少两个压缩机。 通过使用用于至少两个压缩机的逆变器，元件的使用被最小化并且可以增加压缩机容量，并且可以提高系统的操作效率。 作为示例，可以根据两个压缩机的负载或冷却能力来使用多个操作模式。 两台压缩机通过使用逆变器单独或同时操作，从而简化了系统的配置，并降低了成本。

公开(公告)号：US20160153442A1

公开(公告)日：2016-06-02

申请号：US14948600

申请日：2015-11-23

申请人： LG ELECTRONICS INC.

发明人： Sungjin LIM ,  Daegeun PARK ,  Youngwoong SONG

IPC分类号： F04B49/20 ,  F04B53/14 ,  F04B51/00 ,  F04B35/04

CPC分类号： F04B49/20 ,  F04B35/04 ,  F04B35/045 ,  F04B49/06 ,  F04B49/12 ,  F04B51/00 ,  F04B53/14 ,  F04B2201/02 ,  F04B2203/0401 ,  F04B2203/0402 ,  H02K7/14 ,  H02K33/06

摘要： An apparatus and method for controlling a linear compressor and a linear compressor and a refrigerator having the same are provided. The apparatus may include a drive configured to drive the linear compressor based on a control signal, a detector configured to detect a motor current of the linear compressor, an asymmetric current generator configured to generate an asymmetric motor current by applying a current offset to the detected motor current, and a controller configured to generate the control signal based on the asymmetric motor current. The current offset may be changed based on a change in a position of a piston of the linear compressor.

摘要翻译： 提供了一种用于控制线性压缩机和线性压缩机的装置和方法以及具有该压缩机的冰箱。 该装置可以包括：驱动器，被配置为基于控制信号驱动线性压缩机;检测器，被配置为检测线性压缩机的电动机电流;非对称电流发生器，其被配置为通过对检测到的电流施加电流偏移来产生不对称电动机电流 电动机电流以及基于非对称电动机电流产生控制信号的控制器。 可以基于线性压缩机的活塞的位置的变化来改变当前偏移。

公开(公告)号：US20150176579A1

公开(公告)日：2015-06-25

申请号：US14570550

申请日：2014-12-15

申请人： LG ELECTRONICS INC.

发明人： Sungjin LIM ,  Nayi RYU ,  Sungho PARK

IPC分类号： F04B49/06 ,  F25B49/02 ,  F25B31/02 ,  F04B35/04

CPC分类号： F04B49/06 ,  F04B35/04 ,  F04B35/045 ,  F04B49/065 ,  F04B2203/0401 ,  F04B2203/0402 ,  F25B31/023 ,  F25B49/022

摘要： The control module includes a drive circuitry that drives the linear compressor based on a control signal, a detector that detects a motor current and a motor voltage corresponding to a motor of the linear compressor, an asymmetric current generator that generates an asymmetric motor current by applying a current offset to the detected motor current, and a controller that generates the control signal based on the asymmetric motor current and the detected motor voltage. Such a control module may increase a maximum freezing capacity by appropriately (or optimally) designing (setting) an initial value of a piston in a driving area or an operation area (or a high-efficiency driving area) of a compressor by considering the efficiency aspect, and executing an asymmetric operation in a high-load driving area (or a high freezing capacity driving area).

摘要翻译： 控制模块包括驱动电路，其基于控制信号驱动线性压缩机，检测器检测电动机电流和对应于线性压缩机的电动机的电动机电压，通过应用产生不对称电动机电流的非对称电流发生器 对检测到的电动机电流的电流偏移，以及基于不对称电动机电流和检测到的电动机电压产生控制信号的控制器。 这样的控制模块可以通过考虑效率来适当（或最佳地）设计（设定）压缩机的驱动区域或操作区域（或高效率驱动区域）中的活塞的初始值来增加最大冻结能力 并且在高负载驱动区域（或高容量驱动区域）中执行非对称操作。