公开(公告)号：US12129845B2

公开(公告)日：2024-10-29

申请号：US17649525

申请日：2022-01-31

申请人： Caterpillar Inc.

发明人： Mark Francis Grimes ,  Andy Publes ,  Mark C. Paul

IPC分类号： F04B49/20 ,  E21B43/26 ,  F04B17/03 ,  F04B49/06

CPC分类号： F04B49/20 ,  E21B43/26 ,  E21B43/2607 ,  F04B17/03 ,  F04B49/065 ,  F04B2203/0204 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04B2205/04

摘要： In some implementations, a controller may obtain a setting for a maximum discharge pressure associated with a fluid pump that is to be allowed during a hydraulic fracturing operation. The fluid pump may be driven by a motor that is controlled by a variable frequency drive (VFD). The controller may determine a maximum torque for the motor that achieves the maximum discharge pressure. The controller may cause, via the VFD, adjustment to a speed of the motor to maintain a torque of the motor at or below the maximum torque for the motor.

公开(公告)号：US20240344440A1

公开(公告)日：2024-10-17

申请号：US18756978

申请日：2024-06-27

申请人： BJ Energy Solutions, LLC

发明人： Tony YEUNG ,  Ricardo RODRIGUEZ-RAMON ,  Diankui FU ,  Warren ZEMLAK ,  Samir Nath SETH ,  Joseph FOSTER

IPC分类号： E21B43/26 ,  F04B23/04 ,  F04B49/20

CPC分类号： E21B43/2607 ,  E21B43/26 ,  F04B23/04 ,  F04B49/20 ,  F04B2201/1203

摘要： A system and method for operating a fleet of pumps for a turbine driven fracturing pump system used in hydraulic fracturing is disclosed. A method of operating a fleet of pumps associated with a hydraulic fracturing system includes receiving a demand Hydraulic Horse Power (HHP) signal. The demand HHP signal may include the Horse Power (HP) required for the hydraulic fracturing system to operate and may include consideration for frictional and other losses. The method further includes operating all available pump units at a percentage of rating below Maximum Continuous Power (MCP) level, based on the demand HHP signal. Furthermore, the method may include receiving a signal for loss of power from one or more pump units. The method further includes operating one or more units at MCP level and operating one or more units at Maximum Intermittent Power (MIP) level to meet the demand HHP signal.

公开(公告)号：US12085072B2

公开(公告)日：2024-09-10

申请号：US17359029

申请日：2021-06-25

申请人： Regal Beloit America, Inc.

发明人： Justin Magyar ,  James Reed ,  Nathan Snell ,  Tony Zhang ,  Howard Richardson ,  Henry Huynh ,  Stephen T. English ,  Wenbing Li ,  Hongbo Tang

IPC分类号： H02K7/14 ,  F04B17/03 ,  F04B49/20 ,  E04H4/12

CPC分类号： F04B49/20 ,  F04B17/03 ,  E04H4/1245 ,  F04B2207/702

摘要： A motor controller for a pump motor is provided. The motor controller includes an input device and a memory configured to store a plurality of actuation sequences and a plurality of commands. Each actuation sequence is associated with a command. The motor controller further includes a processor coupled to the input device, the memory, and the pump motor. The processor is configured to detect at the input device, a first actuation sequence in response to the input device being actuated. The processor is further configured to perform a lookup in the memory to determine a first command corresponding to the first actuation sequence. The processor is further configured to operate the pump motor according to the first command.

公开(公告)号：US20240254978A1

公开(公告)日：2024-08-01

申请号：US18622187

申请日：2024-03-29

申请人： Graco Minnesota Inc.

发明人： Bradley H. Hines ,  Paul W. Scheierl ,  Brian W. Koehn ,  Jacob D. Higgins ,  Benjamin J. Paar ,  David L. Fehr

IPC分类号： F04B17/03 ,  F04B43/04 ,  F04B49/06 ,  F04B49/20 ,  F04B53/18

CPC分类号： F04B17/03 ,  F04B43/04 ,  F04B49/065 ,  F04B49/20 ,  F04B53/18

摘要： An electrically operated displacement pump includes an electric motor having a stator and a rotor. The rotor is connected to the fluid displacement member to drive axial reciprocation of the fluid displacement member. A drive mechanism is disposed between and connected to each of the rotor and the fluid displacement member. The drive mechanism receives a rotational output from the rotor and provides a linear input to the fluid displacement member. A controller controls operation of the motor based on an operating state of the motor to control pumping by the displacement pump.

公开(公告)号：US20240246049A1

公开(公告)日：2024-07-25

申请号：US18242169

申请日：2023-09-05

申请人： U.S. Well Services, LLC

发明人： Jared Oehring ,  Brandon N. Hinderliter

IPC分类号： B01F35/71 ,  B01F35/32 ,  B01F101/49 ,  B28C7/04 ,  B28C7/10 ,  B28C9/04 ,  E21B43/26 ,  E21B43/267 ,  F04B17/03 ,  F04B17/06 ,  F04B19/22 ,  F04B23/00 ,  F04B47/02 ,  F04B49/06 ,  F04B49/20

CPC分类号： B01F35/71731 ,  B01F35/32025 ,  B01F35/3204 ,  B28C7/0477 ,  B28C7/10 ,  B28C9/04 ,  E21B43/2607 ,  E21B43/267 ,  F04B17/03 ,  F04B17/06 ,  F04B19/22 ,  F04B23/00 ,  F04B47/02 ,  F04B49/065 ,  F04B49/20 ,  B01F2101/49

摘要： Embodiments relate to a hydraulic fracturing system that includes a blender unit. The system includes an auger and hopper assembly to receive proppant from a proppant source and feed the proppant to the blender unit for mixing with a fluid. A first power source is used to power the blender unit in order to mix the proppant with the fluid and prepare a fracturing slurry. A second power source independently powers the auger and hopper assembly in order to align the hopper of the auger and hopper assembly with a proppant feed from the proppant source. Thus, the auger and hopper assembly can be stowed or deployed without use of the first power source, which is the main power supply to the blender unit.

公开(公告)号：US11994124B1

公开(公告)日：2024-05-28

申请号：US18338735

申请日：2023-06-21

申请人： Evan Scott Guy

发明人： Evan Scott Guy

IPC分类号： F04B49/22 ,  F04B25/02 ,  F04B49/00 ,  F04B49/20

CPC分类号： F04B49/22 ,  F04B25/02 ,  F04B49/007 ,  F04B49/20

摘要： A system for compressing gas, including fugitive natural gas emissions from natural gas compression equipment, such that the gas can be reintroduced in an unchanged, undiluted state into a pressurized gas pipeline system such as that used for natural gas. The source of gas can include leakage from natural gas compressor piston rod packing seals, or blowdowns of certain sections of a natural gas pipeline system for purposes of maintenance or emergency operations, or any other leakage source. The current practice within the natural gas pipeline industry is to vent or flare fugitive emissions and blowdown gas to atmosphere.

公开(公告)号：US11965496B2

公开(公告)日：2024-04-23

申请号：US17037928

申请日：2020-09-30

申请人： Fernando A. Ubidia

发明人： Fernando A. Ubidia

IPC分类号： F04B13/00 ,  F04B49/20 ,  F04B49/22 ,  F04B49/24 ,  F04B53/10 ,  F04B53/16 ,  F04C2/344 ,  F04C14/08 ,  F04C14/26 ,  F04C15/00 ,  F04D13/06 ,  F04D15/00 ,  F04D29/18 ,  G01F1/34 ,  F04B43/04

CPC分类号： F04B13/00 ,  F04B49/20 ,  F04B49/225 ,  F04B49/24 ,  F04B53/10 ,  F04B53/16 ,  F04C2/344 ,  F04C14/08 ,  F04C14/26 ,  F04C15/008 ,  F04D13/06 ,  F04D15/0011 ,  F04D15/0066 ,  F04D29/18 ,  G01F1/34 ,  F04B43/04 ,  Y10T137/85978

摘要： A compact, modular dosing pump system that is capable of microdose and macrodose volume flow rates, reduces or eliminates the need for additional flow control components such as temperature and pressure sensors, and utilizes a wider operational flow range than existing systems while maintaining the level of accuracy and precision exhibited by conventional dosing pump systems is provided. The dosing pump utilizes a a control system to deliver a range of fluid volumes. The control system monitors the motor emf voltage, calculates the flow rate, and makes adjustments to the pump motor voltage to precisely maintain the desired flowrate.

公开(公告)号：US11959471B2

公开(公告)日：2024-04-16

申请号：US17865960

申请日：2022-07-15

申请人： Waters Technologies Corporation

发明人： Timothy M. Raymond ,  Sean Eric Anderson

IPC分类号： F04B43/00 ,  F04B43/12 ,  F04B49/06 ,  F04B49/20

CPC分类号： F04B43/0081 ,  F04B43/12 ,  F04B49/065 ,  F04B49/20 ,  F04B2207/03

摘要： Described is a method for regulating a volume of liquid delivered by a peristaltic pump and a peristaltic pump system that can be used to perform the method. The method includes sensing an ambient temperature of the peristaltic pump. The peristaltic pump includes a pump motor. At least one of a motor speed and a motor operation duration is determined from the sensed temperature, a selected volume of liquid to be delivered and a predetermined correspondence of the motor speed to ambient temperature. The pump motor is operated at the determined motor speed or for the determined motor operation duration to deliver the selected volume of liquid from the peristaltic pump.

公开(公告)号：US11933289B2

公开(公告)日：2024-03-19

申请号：US17356518

申请日：2021-06-24

申请人： KABUSHIKI KAISHA YASKAWA DENKI

发明人： Hideaki Ike

IPC分类号： F04B49/00 ,  F04B17/03 ,  F04B23/04 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04B51/00

CPC分类号： F04B49/007 ,  F04B17/03 ,  F04B23/04 ,  F04B49/022 ,  F04B49/065 ,  F04B49/20 ,  F04B51/00 ,  F04B2203/0201 ,  F04B2203/0401 ,  F04B2205/05

摘要： A control system may include circuitry configured to: a deterioration level estimation unit configured to estimate deterioration levels of pumping devices based on information about driving forces of the pumping devices; a selection unit configured to select a pumping device from the pumping devices based on a comparison of the estimated deterioration levels estimated by the deterioration level estimation unit; and a pumping control unit configured to control the selected pumping device selected by the selection unit to pump fluid.

公开(公告)号：US11920581B2

公开(公告)日：2024-03-05

申请号：US17162973

申请日：2021-01-29

申请人： Masterflex, LLC

发明人： Phuong Le Pham

IPC分类号： F04B49/20 ,  F04B43/08 ,  F04B43/12 ,  F04B49/06 ,  F04B49/10

CPC分类号： F04B49/20 ,  F04B43/08 ,  F04B49/065 ,  F04B49/103 ,  F04B43/12 ,  F04B2201/1201 ,  F04B2203/0209 ,  F04B2205/09 ,  F04B2207/043

摘要： Aspects are provided for positive displacement pumps and methods and systems for controlling such pumps for dispensing at a flow rate based on a downstream flow sensor. A pump controller determines a targeted motor speed for a flow rate set point based on a flow rate function. The pump controller determines a predicted movement time for a motor of the pump to change from a current motor speed to the targeted motor speed, a predicted wait time to reach a flow rate corresponding to the targeted motor speed, and a measurement time after the wait time. The pump controller controls the positive displacement pump according to consecutive control cycles, each control cycle includes a pump movement sub-cycle, a wait sub-cycle, and a measurement sub-cycle. The pump controller determines a measured flow rate during the measurement sub-cycle. A subsequent control cycle is based on the measured flow rate.