公开(公告)号：US12117010B2

公开(公告)日：2024-10-15

申请号：US18410703

申请日：2024-01-11

申请人： GSCD Corp.

发明人： William Louis Kacin

IPC分类号： F04D25/04 ,  F04D15/00 ,  F04D29/053

CPC分类号： F04D25/04 ,  F04D15/0083 ,  F04D29/053

摘要： A gas seal column apparatus includes a vertically-oriented column, a pump, an inlet pipe, a an outlet pipe, and a drive shaft driven by any type of motor. The pump and the gas seal column comprise a vertically-oriented pump system. The inlet pipe receives pressurized seal gas for introducing the seal gas into the pump system. The outlet pipe enables the seal gas to exit the pump system. The drive shaft is encased by the gas seal column between the pump drive motor and the pump to couple the pump drive motor to the pump.

公开(公告)号：US20240229797A1

公开(公告)日：2024-07-11

申请号：US18407224

申请日：2024-01-08

申请人： PADDLEMOVER LLC

发明人： Paul Anthony Johnson

IPC分类号： F04D13/06 ,  F04D25/06 ,  F04D29/043 ,  F04D29/053 ,  F16H1/22

CPC分类号： F04D13/06 ,  F04D25/06 ,  F04D29/043 ,  F04D29/053 ,  F16H1/22

摘要： A material mover assembly, comprising a chamber having an inlet and an outlet; a first paddle and a second paddle; and a gear assembly, wherein the first paddle is positioned in and configured to rotate circumferentially in the chamber, the second paddle is positioned in and configured to rotate circumferentially in the chamber, the gear assembly comprises an input drive shaft, a first output drive shaft, and a second output drive shaft, the first output drive shaft and the second output drive shaft are coaxial and concentric, the first output drive shaft is coupled to and configured to drive the first paddle, and the second output drive shaft is coupled to and configured to drive the second paddle, and a relative motion of the first paddle and the second paddle causes material to be pulled into the chamber via the inlet and pushed out of the chamber via the outlet in a forward direction.

公开(公告)号：US12029849B2

公开(公告)日：2024-07-09

申请号：US17368678

申请日：2021-07-06

申请人： Fisher & Paykel Healthcare Limited

发明人： Donald Roy Kuriger ,  Johannes Nicolaas Bothma

IPC分类号： A61M16/00 ,  F04D25/06 ,  F04D29/053 ,  F04D29/059 ,  F04D29/42 ,  F04D29/58

CPC分类号： A61M16/0066 ,  F04D25/0606 ,  F04D29/053 ,  F04D29/059 ,  F04D29/4253 ,  F04D29/5806 ,  A61M2205/3606 ,  A61M2205/362 ,  A61M2205/42

摘要： This invention relates to a blower for a breathing apparatus. The blower comprising a bottom support with a stub axle, a top support with a stub axle, a motor core comprising a motor stator and rotor, and an impeller coupled to the motor core via a shaft, the shaft is rotatably coupled at a first end to the stub axle on the top support and at a second end via the stub axle on the bottom support.

公开(公告)号：US20240159244A1

公开(公告)日：2024-05-16

申请号：US18056218

申请日：2022-11-16

申请人： Emerson Climate Technologies, Inc.

发明人： Patrick Shawn O'Meara

IPC分类号： F04D29/056 ,  F04D29/053 ,  F04D29/42 ,  F04D29/62 ,  F16C17/02

CPC分类号： F04D29/056 ,  F04D29/053 ,  F04D29/4206 ,  F04D29/624 ,  F16C17/024 ,  F16C2360/00

摘要： A bearing system including a foil bearing assembly positioned within the cylindrical bore of the sleeve. The foil bearing includes a top foil layer and an outer layer. The bearing system includes a driveshaft including a recess axially aligned with the top foil layer. The recess defines a cavity having a volume and includes a leading end at a first circumferential position and a trailing end at a second circumferential position. The volume of the cavity decreases from the leading end to the trailing end.

公开(公告)号：US11959488B2

公开(公告)日：2024-04-16

申请号：US17783091

申请日：2020-12-08

申请人： LG ELECTRONICS INC.

发明人： Jaehyuk Jung ,  Seokho Choi ,  Changhoon Lee ,  Juhyun Kim ,  Hyungho Park ,  Hoojin Kim ,  Yongmin Kim ,  Chiyoung Choi

IPC分类号： F04D29/32 ,  F04D25/06 ,  F04D25/08 ,  F04D29/053 ,  F04D29/28 ,  F04D29/38 ,  F04D29/42 ,  F04D29/52 ,  F04D29/66 ,  F24F13/20 ,  F24F13/24

CPC分类号： F04D29/281 ,  F04D25/06 ,  F04D25/08 ,  F04D29/053 ,  F04D29/326 ,  F04D29/4226 ,  F04D29/522 ,  F24F13/20 ,  F24F13/24

摘要： The present invention relates to a blower, the blower according to an embodiment of the present invention comprising: a lower case having a suction hole formed therein through which air is introduced; an upper case arranged on the upper side of the lower case and having a discharge hole formed therein through which air is discharged; and a fan arranged in the lower case and including a plurality of blades. Each of the plurality of blades includes a plurality of airfoils respectively extending along different camber lines from one another, and a leading edge of connecting the leading ends of the plurality of airfoils. Entrance angles formed by the respective camber lines of the plurality of airfoils and the rotation directions of the blades are different from one another. Thus, due to the curved shape of the leading edge and the design of a recessed notch, a flow separating from the leading edge is reduced, and thus, there is an advantage in that air volume performance is improved.

公开(公告)号：US11959485B2

公开(公告)日：2024-04-16

申请号：US17995484

申请日：2020-05-14

申请人： Siemens Energy Global GmbH & Co. KG

发明人： Mark J. Kuzdzal ,  David J. Peer ,  Marcus Meyer ,  Sebastian Huth ,  James M. Sorokes ,  Kevin Miny ,  Martin Reimann ,  Roman Mensing ,  Jesus Pacheco ,  Steven Nove

IPC分类号： F04D17/12 ,  F04D29/053 ,  F04D29/054 ,  F04D29/28 ,  F04D29/62

CPC分类号： F04D17/12 ,  F04D29/053 ,  F04D29/054 ,  F04D29/286 ,  F04D29/624

摘要： Compressor rotor structure and methodology for harmonizing compressor aerodynamics and rotordynamics are provided. Disclosed embodiments benefit from a compressor design effective for improving rotordynamics (e.g., stiffer rotor structure) without reducing a usable aerodynamics range of the compressor. This design may involve variation of the rotor structure along the rotor axis to locate respective surfaces defined by respective inlets of the one or more impellers at a varying distance relative to the rotor axis based on respective ratios selected for the configuration of the impeller bodies. This arrangement may be effective for improving rotordynamics while satisfactorily meeting the respective varying aerodynamics requirements at the various compression stages by the impeller bodies.

公开(公告)号：US20240035479A1

公开(公告)日：2024-02-01

申请号：US18355042

申请日：2023-07-19

申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION

发明人： Nobuyori Yagi ,  Akihiko Umeda ,  Eiichi Yanagisawa ,  Masayuki Soneda ,  Seiji Ohama

IPC分类号： F04D17/10 ,  F04D29/053

CPC分类号： F04D17/10 ,  F04D29/053

摘要： A centrifugal compressor includes: a drive shaft; a wheel gear; a driven shaft; a pinion gear disposed to be rotatable together with the driven shaft, and meshing with the wheel gear; an impeller rotating together with the driven shaft; a thrust collar restricting a displacement of the driven shaft in an axial direction by colliding with the wheel gear in the axial direction; and a plurality of bolts disposed at intervals in a circumferential direction and each extending in the axial direction to fix the thrust collar and the pinion gear. Each of the plurality of bolts fix the thrust collar and the pinion gear in a state where each of the plurality of bolts are inserted from a position opposite to the wheel gear with reference to the thrust collar in the axial direction.

公开(公告)号：US11873828B2

公开(公告)日：2024-01-16

申请号：US17058075

申请日：2019-06-12

申请人： LG ELECTRONICS INC.

发明人： Seunghyuck Kang ,  Seulki Kim

IPC分类号： F04D27/00 ,  F04D25/08 ,  F04D29/053 ,  G05B15/02

CPC分类号： F04D27/004 ,  F04D25/088 ,  F04D27/001 ,  F04D29/053 ,  G05B15/02

摘要： A ceiling fan according to an embodiment of the present disclosure comprises: a shaft coupled onto a ceiling or a wall surface of an indoor space; a motor assembly connected to the shaft to provide rotational power; a plurality of blades coupled to the motor assembly to be rotated; and an electronic component unit coupled to the shaft and positioned in an inner space of the motor assembly, wherein the electronic component unit includes a communication module for interworking with an air conditioning product installed in the indoor space, and a control unit for controlling the air conditioning product and the for assembly.

公开(公告)号：US11873826B2

公开(公告)日：2024-01-16

申请号：US17647512

申请日：2022-01-10

申请人： DEERE & COMPANY

发明人： Ronald D. Bremner

IPC分类号： F04D25/08 ,  F04D29/58 ,  F04D29/053 ,  H02K5/128 ,  F04D25/16

CPC分类号： F04D25/166 ,  F04D25/082 ,  F04D29/053 ,  F04D29/584 ,  F04D29/5806 ,  H02K5/128 ,  B60Y2200/221

摘要： An electric machine for a work vehicle including a housing, a stator assembly positioned inside the housing, and a rotor assembly rotatably connected to the housing via a bearing. The rotor assembly is positioned to form an air gap between the stator assembly and the rotor assembly. A front air dam is positioned at a first end of the housing and adjacent to the air gap. The front air dam includes an external barrier, an internal barrier, an opening in the internal barrier, and a passageway in the internal barrier. A fan is attached to the rotor assembly and positioned within the housing. The fan generates a first air flow towards the air gap and a second air flow through the passageway.

公开(公告)号：US11761665B2

公开(公告)日：2023-09-19

申请号：US16883619

申请日：2020-05-26

申请人： REGAL BELOIT AMERICA, INC.

发明人： Bin Yang ,  Brian Lee Beifus ,  Roger Carlos Becerra

IPC分类号： F04D13/06 ,  F04D29/053 ,  F04D25/08 ,  F04D27/00 ,  F04D15/00 ,  F24F11/75 ,  H02P6/08

CPC分类号： F24F11/75 ,  F04D13/0686 ,  F04D15/0066 ,  F04D25/08 ,  F04D27/007 ,  F04D29/053 ,  H02P6/08 ,  F04D27/004

摘要： A motor controller for an electric motor for driving a blower to generate an airflow. The motor controller includes a processor and a drive circuit configured to regulate power supplied to the motor to turn the blower. The processor computes a system resistance for the blower based on a fixed set point for a first control parameter and a feedback parameter. The processor receives an airflow rate demand value and computes an operating set point for a second control parameter based on the system resistance and the airflow rate demand value. The processor controls the drive circuit based on the operating set point to supply electrical power to the electric motor and to operate the blower to generate the airflow.