公开(公告)号：US12168917B2

公开(公告)日：2024-12-17

申请号：US17199196

申请日：2021-03-11

Applicant: Forland Services LLC

Inventor： Dong Yuan

IPC: E21B43/12 ,  E21B47/009 ,  F04B47/02 ,  F04B49/02 ,  G01D5/347

Abstract: Systems and methods for controlling a vertical pumping unit are provided. The method includes a self-learning phase and a running phase, wherein the self-learning phase includes obtaining a self-learning result and the running phase includes controlling a motor of the vertical pumping unit to run according to the self-learning result and preset running parameters. The method enables the vertical pumping unit to adjust running parameters of the running phase according to the self-learning results, avoid the accumulation of errors effectively so that changes in stroke length and stroke frequency caused by the motor V-belt, load belt extension and retraction and other elastic links are limited to a minimum range so as to ensure the running accuracy of the vertical pumping unit.

公开(公告)号：US12129841B2

公开(公告)日：2024-10-29

申请号：US17428918

申请日：2020-02-20

Applicant: Edwards Limited

Inventor： Gerald Robin Shelley ,  Peter George Stammers ,  Brian Stuart Blakeley Roberts

IPC: F04B37/14 ,  F04B41/06 ,  F04B49/00 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04B49/22 ,  F04C25/02 ,  F04C28/02 ,  F04C28/08 ,  F04C28/28 ,  F04D15/00 ,  F04D17/16 ,  F04D19/04 ,  F04D27/00 ,  F04D27/02

CPC classification number: F04B37/14 ,  F04B41/06 ,  F04B49/007 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04B49/22 ,  F04C25/02 ,  F04C28/02 ,  F04C28/08 ,  F04C28/28 ,  F04D15/0027 ,  F04D17/168 ,  F04D19/04 ,  F04D27/004 ,  F04D27/0261 ,  F04B2205/09 ,  F04C2220/30

Abstract: A vacuum pumping apparatus may include: a common pumping line having a plurality of pumping line inlets and a pumping line outlet, each pumping line inlet being configured to couple with an outlet of an associated plurality of vacuum processing chambers; at least one primary vacuum pump in fluid communication with the pumping line outlet to pump gas from each vacuum processing chamber; and control logic operable to control operation of the primary vacuum pump in response to an indication of an operating state of the plurality of vacuum processing chambers. In this way, the performance of the primary vacuum pump can be adjusted to match the load provided by the processing chambers and when there is an excess capacity, the performance of the primary vacuum pumps can be reduced, which can lead to significant energy savings and reduce wear on the pump.

公开(公告)号：US12092094B2

公开(公告)日：2024-09-17

申请号：US16569923

申请日：2019-09-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenjiro Okaguchi

IPC: F04B45/047 ,  A61B5/0225 ,  F04B49/02 ,  H02N2/06 ,  H03B5/32

CPC classification number: F04B45/047 ,  A61B5/0225 ,  F04B49/02 ,  H02N2/06 ,  H03B5/32

Abstract: A fluid control device includes a piezoelectric pump that includes a piezoelectric element and whose discharge pressure output varies depending on a drive frequency of the piezoelectric element, a self oscillation circuit that self-oscillates in accordance with a drive supply voltage and that drives the piezoelectric element at an oscillation frequency, and a control circuit that generates a control voltage. The oscillation frequency of the self oscillation circuit varies depending on the control voltage.

公开(公告)号：US12044232B2

公开(公告)日：2024-07-23

申请号：US17274700

申请日：2019-11-29

Applicant: Hitachi Industrial Equipment Systems Co., Ltd.

Inventor： Norio Aoyagi ,  Hiroaki Saito ,  Fuminori Kato ,  Daichi Oka ,  Akihiro Yamamoto

IPC: F04B49/06 ,  F04B23/04 ,  F04B23/06 ,  F04B41/06 ,  F04B49/02 ,  F04B49/20 ,  F04D13/12 ,  F04D15/00 ,  F04D15/02 ,  F04D25/16 ,  F04D27/00 ,  F04D27/02 ,  F25B5/02 ,  F25B49/02

CPC classification number: F04B49/06 ,  F04B23/04 ,  F04B23/06 ,  F04B41/06 ,  F04B49/02 ,  F04B49/065 ,  F04B49/20 ,  F04D13/12 ,  F04D15/0066 ,  F04D15/0072 ,  F04D15/0088 ,  F04D15/029 ,  F04D25/16 ,  F04D27/00 ,  F04D27/0261 ,  F25B5/02 ,  F25B49/022 ,  F04B2203/0214 ,  F04B2207/043 ,  F25B2500/26

Abstract: There are provided an operation number control device and a method for controlling the same that can level the operation times of the fluid machines, which are connected to the operation number control device. A fluid machine system comprises a plurality of fluid machines, and an operation number control device capable of individually controlling start and stop of the fluid machines. The operation number control device sets a continuous operation time for each of the fluid machines based on total operation times of the fluid machine and other fluid machines. When among fluid machines in operation, there is a fluid machine for which the continuous operation time set for the fluid machine has elapsed and there is a fluid machine at stop, the operation number control device causes the fluid machine at stop to start and causes the fluid machine to stop.

公开(公告)号：US11982280B2

公开(公告)日：2024-05-14

申请号：US17642657

申请日：2019-11-27

Applicant: INDUSTRIAL FLOW SOLUTIONS OPERATING, INC.

Inventor： Stephane Dumonceaux

IPC: F04D15/02 ,  E03F5/22 ,  F04B23/04 ,  F04B49/02 ,  F04B49/06 ,  F04D13/06 ,  F04D13/12 ,  F04D13/14 ,  F04D15/00 ,  F04D29/22 ,  F04D29/70

CPC classification number: F04D15/029 ,  E03F5/22 ,  F04D13/06 ,  F04D13/12 ,  F04D13/14 ,  F04D15/0066 ,  F04D15/0072 ,  F04D15/0088 ,  F04D15/0209 ,  F04D15/0218 ,  F04D29/2283 ,  F04D29/708 ,  F04B23/04 ,  F04B49/02 ,  F04B49/065 ,  F04B2203/0209

Abstract: The invention, comprises a pumping apparatus, system and method for increasing the flow of the in a first direction to boost liquid flow and in a reverse second direction to remove blockages and/or self-clearing, with operation having an rotor/impeller that can use a shredder and/or shearing action utilizing blades for processing to pass solids, debris and other things to prevent clogging and/or self-cleaning of the unit.

公开(公告)号：US11959219B2

公开(公告)日：2024-04-16

申请号：US17882020

申请日：2022-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Sungwoon Jung ,  Hunjun Jang

IPC: D06F39/02 ,  D06F23/02 ,  D06F33/37 ,  D06F37/22 ,  D06F39/04 ,  F04B13/02 ,  F04B49/02 ,  F04B49/10 ,  D06F34/14 ,  D06F39/08 ,  D06F39/10 ,  D06F39/14 ,  F04B17/03 ,  F04B19/22

CPC classification number: D06F39/022 ,  D06F23/02 ,  D06F33/37 ,  D06F37/22 ,  D06F39/04 ,  F04B13/02 ,  F04B49/02 ,  F04B49/106 ,  D06F34/14 ,  D06F39/028 ,  D06F39/085 ,  D06F39/10 ,  D06F39/14 ,  F04B17/03 ,  F04B19/22 ,  F04B2205/09

Abstract: Provided is a washing agent pump and a laundry treating apparatus having the same. The laundry treating apparatus may include a cabinet, a tub provided within the cabinet, a rotary tub provided within the tub in a rotatable manner, and a washing agent supply unit. The washing agent supply unit may include a storage container to store a liquid washing agent including a liquid detergent or a liquid softener, the storage container being slidably provided in the cabinet, a washing agent supply passage having one side connected to the storage container and another side connected to the tub, and a washing agent delivery device provided in the washing agent supply passage to deliver the liquid washing agent to the tub.

公开(公告)号：US20240102465A1

公开(公告)日：2024-03-28

申请号：US17768169

申请日：2020-10-19

Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

Inventor： Makoto HATTORI ,  Toyohisa KAWASHIMA ,  Kyohei WATANABE

IPC: F04B49/06 ,  F04B49/02 ,  F04B49/10 ,  H02P23/04

CPC classification number: F04B49/06 ,  F04B49/02 ,  F04B49/10 ,  H02P23/04

Abstract: Provided is a method for continuing the operation of an electric compressor even if the magnitude of ripple voltage exceeds a predetermined threshold value. A control device of an electric compressor is provided with: a detection unit for detecting the ripple voltage of the electric compressor which is driven by a battery; a determination unit for determining whether or not the value of the ripple voltage is greater than or equal to a predetermined threshold value; and a control unit for reducing the rotation speed of a motor of the electric compressor down to a predetermined first target rotation speed greater than 0 when the value is greater than or equal to the threshold value.

公开(公告)号：US11933309B2

公开(公告)日：2024-03-19

申请号：US17871504

申请日：2022-07-22

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan Lin ,  Chung-Hung Tang ,  Cheng-Chieh Liu ,  Chun-Lung Chiu

IPC: F04D19/00 ,  F04D25/06 ,  F04D27/00 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04D17/16 ,  F04D29/66

CPC classification number: F04D19/002 ,  F04D25/06 ,  F04D27/004 ,  F04B49/02 ,  F04B49/06 ,  F04B49/065 ,  F04B49/20 ,  F04D17/16 ,  F04D29/661 ,  F05D2260/85

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, the signal value of the first driving signal gradually decreases until being equal to the signal value of the second driving signal. Wherein the signal value of the first driving signal non-linearly decreases, the signal value of the second driving signal is an unchanged value. Wherein, the first time period and the second time period are adjusted for a different fan but the sum of the first time period and the second time period is always the same. A fan is also disclosed.

公开(公告)号：US11920580B2

公开(公告)日：2024-03-05

申请号：US17641341

申请日：2020-06-12

Applicant: NIPPON PILLAR PACKING CO., LTD.

Inventor： Yuki Otono ,  Ai Tomotoshi ,  Kazukiyo Teshima

IPC: F04B49/02 ,  F04B43/00 ,  F04B43/08 ,  F04B43/10 ,  F04B43/113 ,  F04B45/02 ,  F04B45/033 ,  F04B49/03 ,  F04B49/22

CPC classification number: F04B49/02 ,  F04B43/0081 ,  F04B43/086 ,  F04B43/10 ,  F04B43/113 ,  F04B45/022 ,  F04B45/0336 ,  F04B49/03 ,  F04B49/22 ,  F04B2201/0201

Abstract: A bellows pump device includes a control unit which, before operation of the bellows pump device is started, performs initial control in which solenoid valves are switched and pressurized air is supplied to suction-side air chambers in advance, thereby determining operation air pressures which are air pressures of the pressurized air to be supplied to the suction-side air chambers during the operation. As the initial control, the control unit outputs control commands to electropneumatic regulators so as to gradually increase the air pressures of the pressurized air to be supplied to the suction-side air chambers in advance, and when detection signals resulting from detection of expansion positions of the bellows are inputted from the proximity sensors to the control unit, the control unit determines the air pressures of the pressurized air supplied to the suction-side air chambers at that time as the operation air pressures.

公开(公告)号：US20240052824A1

公开(公告)日：2024-02-15

申请号：US18481528

申请日：2023-10-05

Applicant: BLACK & DECKER INC.

Inventor： Kathleen A. Miller ,  Michael S. Justin ,  Michael J. Kowalski ,  Steven Thomas Carpenter ,  Raghavendra Byatnal ,  Philip John Martinez ,  Jared W. Rondeau

IPC: F04B49/02 ,  F04B35/04 ,  F04B41/02 ,  F04B35/06 ,  B60S5/04

CPC classification number: F04B49/022 ,  F04B35/04 ,  F04B41/02 ,  F04B35/06 ,  B60S5/046

Abstract: A cordless compressor has an air storage tank, a pump, a motor for driving the pump, and a controller circuit electrically connected to the motor. A pressure switch assembly is connected to the controller circuit. The pressure switch assembly has first and second pressure switches for sensing pressure within the air storage tank. The controller circuit controls de-activation of the motor depending upon status of the first and second pressure switches.