公开(公告)号：US20220090592A1

公开(公告)日：2022-03-24

申请号：US17428918

申请日：2020-02-20

申请人： EDWARDS LIMITED

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

IPC分类号： 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

摘要： 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：US20220074402A1

公开(公告)日：2022-03-10

申请号：US17526329

申请日：2021-11-15

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

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：US11268506B2

公开(公告)日：2022-03-08

申请号：US15852680

申请日：2017-12-22

申请人： IRADIMED CORPORATION

发明人： Roger E. Susi

IPC分类号： F04B43/04 ,  A61B5/0235 ,  A61B5/022 ,  F04B49/06 ,  F04B43/00 ,  A61B5/021 ,  F04B53/10 ,  F04B49/20 ,  A61B5/055

摘要： Embodiments of fluid pumps configured for use in a magnetic resonance imaging environment are disclosed. The pumps may include piezoelectric driven pumping mechanisms or ultrasonic motor driven pumping mechanisms. The pumps may be configured to pump fluid such as air or liquid. The pumps may be incorporated in a multi-parameter patient monitoring system.

公开(公告)号：US20220018233A1

公开(公告)日：2022-01-20

申请号：US17188441

申请日：2021-03-01

申请人： U.S. Well Services, LLC

发明人： Jared Oehring ,  Robert Kurtz

IPC分类号： E21B43/26 ,  F01D15/10 ,  F16F15/067 ,  F16L55/04 ,  F01D15/08 ,  F04B17/03 ,  F04B19/22 ,  F04B49/20 ,  F02C3/22 ,  H02P23/00 ,  F04B23/04 ,  F04B47/00 ,  F04B23/00 ,  F04B53/00

摘要： An electrically powered hydraulic fracturing system having pumps for pressurizing fracturing fluid, piping for carrying fracturing fluid, and vibration reducing equipment for use with the piping. The vibration reducing equipment includes helical coils that support the piping. The coils are made of a wire rope made of strands of steel cable twisted together. Grooved fittings are provided on some piping connections, and which allow pivoting between adjacent fluid conveyance members. Swivel joints are strategically located in the piping which allow rotational flexing between adjacent sections of the piping; thereby attenuating vibration in the piping but without stressing the piping.

公开(公告)号：US20210396123A1

公开(公告)日：2021-12-23

申请号：US17396914

申请日：2021-08-09

申请人： BJ Energy Solutions, LLC

发明人： Tony Yeung ,  Ricardo Rodriguez-Ramon ,  Diankui Fu ,  Warren Zemlak ,  Caleb Barclay

IPC分类号： E21B43/26 ,  F04B17/05 ,  F02C9/20 ,  F02C7/32 ,  F04B49/10 ,  F04B49/20 ,  F02C7/268 ,  F02C3/10 ,  F04B49/08 ,  F02C6/10 ,  F02C7/36

摘要： Systems and methods to pump fracturing fluid into a wellhead may include a gas turbine engine including a compressor turbine shaft connected to a compressor, and a power turbine output shaft connected to a power turbine. The compressor turbine shaft and the power turbine output shaft may be rotatable at different rotational speeds. The systems may also include a transmission including a transmission input shaft connected to the power turbine output shaft and a transmission output shaft connected to a hydraulic fracturing pump. The systems may also include a fracturing unit controller configured to control one or more of the rotational speeds of the compressor turbine shaft, the power turbine output shaft, or the transmission output shaft based at least in part on target signals and fluid flow signals indicative of one or more of pressure or flow rate associated with fracturing fluid pumped into the wellhead.

公开(公告)号：US11148167B2

公开(公告)日：2021-10-19

申请号：US15698086

申请日：2017-09-07

申请人： NORDSON CORPORATION

发明人： Joel E. Saine

IPC分类号： B05C5/02 ,  B05B15/65 ,  B05C11/02 ,  B05C11/10 ,  B05C19/00 ,  B05B11/00 ,  F04D15/00 ,  B01F5/10 ,  B01F5/14 ,  B05B9/04 ,  B05C5/00 ,  B32B37/12 ,  F04B49/20 ,  F04C2/18 ,  F04C11/00 ,  F04C14/08

摘要： An adhesive dispensing system for applying liquid adhesive to a substrate using different nozzles with the same manifold is disclosed. The adhesive dispensing system includes a manifold having a body, a first clamp configured to engage the body of the manifold, a second clamp configured to engage the body of the manifold, and a nozzle. The first and second clamps secure the nozzle to the body of the manifold. The body of the manifold has a first contact surface that engages the first clamp and a second contact surface that engages the second clamp and the nozzle, where the second contact surface is angularly offset from the first contact surface.

公开(公告)号：US11141579B2

公开(公告)日：2021-10-12

申请号：US16585114

申请日：2019-09-27

申请人： Berlin Heart GmbH

发明人： Robert Steingräber

IPC分类号： F04B43/00 ,  F04B49/20 ,  A61M60/40 ,  A61M60/258 ,  A61M60/274 ,  A61M60/857

摘要： A drive device is provided comprising a working pump, the working pump connected to a membrane fluid pump, and the working pump having a working piston able to oscillate axially between two reversal points for contracting and expanding a working chamber, and a control unit for controlling a movement of the working piston between the two reversal points. The controlled movement of the working piston comprises three temporally successive phases, in a first phase the working piston is accelerated to a speed that is greater than a speed at the end of the first phase, in a second phase the working piston is moved such that a specified speed of the working piston, a specified relative pressure in the working chamber, or a specified force of the working piston is substantially kept constant, and in a third phase the working piston is moved at a negative acceleration.

公开(公告)号：US20210254616A1

公开(公告)日：2021-08-19

申请号：US17103187

申请日：2020-11-24

申请人： Weatherford Technology Holdings, LLC

发明人： Clark E. ROBISON ,  Jeffrey John LEMBCKE ,  Victoria M. PONS ,  William Kevin HALL ,  John Edward STACHOWIAK, Jr. ,  Benson THOMAS ,  Sean M. CHRISTIAN ,  Bryan A. PAULET ,  Hermann BASLER

IPC分类号： F04B49/20 ,  E21B43/12 ,  F04B47/14 ,  E21B47/009

摘要： A long-stroke pumping unit includes a tower; a counterweight assembly movable along the tower; a crown mounted atop the tower; a sprocket supported by the crown and rotatable relative thereto; and a belt. The unit further includes a motor having a stator mounted to the crown and a rotor torsionally connected to the sprocket; and a sensor for detecting position of the counterweight assembly. The pumping unit may include a dynamic control system for controlling a speed of a motor.

公开(公告)号：US11092151B2

公开(公告)日：2021-08-17

申请号：US15461927

申请日：2017-03-17

申请人： TRANE INTERNATIONAL INC.

发明人： John Qianghua Zhou ,  Roger Joseph Voorhis ,  Caleb Ryan Joiner ,  Benjamin Hayes ,  James Philip Crolius ,  William Hansen

IPC分类号： F04B49/06 ,  F04B27/14 ,  F04D27/02 ,  F04B49/20 ,  F04C28/08 ,  F04D27/00 ,  F25B49/02

摘要： A system and method for controlling a system that includes fixed speed and variable speed compressors are described. The method generally allows the system, for example, a heating, ventilating, and air condition (HVAC) system that includes fixed speed and variable speed compressors, to maximize unit modulating capability. The method allows the use of a variable speed compressor that is relatively smaller, which can lead to cost savings, easier installation, manufacturing, etc.

公开(公告)号：US11073155B2

公开(公告)日：2021-07-27

申请号：US15939715

申请日：2018-03-29

申请人： Pentair Water Pool and Spa, Inc. ,  Danfoss Power Electronics A/S

发明人： Robert W. Stiles, Jr. ,  Lars Hoffmann Berthelsen ,  Ronald B. Robol ,  Christopher R. Yahnker ,  Einar Kjartan Runarsson

IPC分类号： F04D15/00 ,  F04D13/06 ,  F04D27/00 ,  F04B49/06 ,  F04B49/20 ,  F04D1/00 ,  E04H4/12

摘要： A method of operating a pumping system for an aquatic application based upon performance of multiple water operations is disclosed. The method includes providing a pump and a motor coupled to the pump, and a controller including a variable speed drive that is in communication with the motor. The method also includes: operating the motor in accordance with a first water operation, wherein the first water operation includes a first start time, end time, and water flow rate; operating the motor in accordance with a second water operation, wherein the second water operation includes a second start time, end time, and water flow rate; and altering the first water operation in response to performance of the second water operation.