公开(公告)号：US12000406B2

公开(公告)日：2024-06-04

申请号：US17832360

申请日：2022-06-03

申请人： General Electric Company

发明人： David Raju Yamarthi ,  Brian G. Brzek ,  Adam Joseph Wangler ,  David Justin Brady ,  Prachi Anand Tappu ,  Santosh Pattnaik ,  Mohan Kannaiah Raju

IPC分类号： F04D29/20 ,  F04D13/02 ,  F04D13/06 ,  F04D25/06 ,  F04D29/04 ,  F04D29/041 ,  F04D29/047 ,  F04D29/049

CPC分类号： F04D29/20 ,  F04D13/021 ,  F04D13/06 ,  F04D13/0646 ,  F04D25/0606 ,  F04D29/0405 ,  F04D29/0413 ,  F04D29/047 ,  F04D29/049

摘要： Impeller bearings for pumps are disclosed. An example fluid pump includes a motor, a shaft coupled to a rotor of the motor, an impeller coupled to the shaft, a first radial bearing positioned around the shaft of the motor aft of the motor, and a second radial bearing positioned around the impeller.

公开(公告)号：US20240125325A1

公开(公告)日：2024-04-18

申请号：US18396820

申请日：2023-12-27

申请人： ResMed Motor Technologies Inc.

发明人： Samuel Aziz MEBASSER ,  Peter Jeffrey THOMAS ,  Roman VINOKUR ,  Kevin Gene McCULLOH ,  William S. LANE ,  Yeu-chuan HSIA ,  Michael David BEDNAR ,  John Paul FREESE ,  Karl Yutaka IWAHASHI ,  David Brent SEARS ,  Barton John KENYON ,  Richard G. KRUM ,  Par Egron DANNAS ,  Hiroshi SUZUKI ,  Malcolm Edward LEADER

IPC分类号： F04D17/16 ,  F04D25/06 ,  F04D29/056 ,  F04D29/057 ,  F04D29/20 ,  F04D29/40

CPC分类号： F04D17/165 ,  F04D17/16 ,  F04D25/0613 ,  F04D25/062 ,  F04D29/056 ,  F04D29/057 ,  F04D29/20 ,  F04D29/403 ,  A61M16/06

摘要： A blower includes a housing including an inlet and an outlet, a bearing-housing structure provided to the housing and adapted to rotatably support a rotor, a motor provided to the bearing-housing structure and adapted to drive the rotor, and an impeller provided to the rotor. The bearing-housing structure includes a bearing shaft having a bearing surface that rotatably supports the rotor. The bearing shaft provides only a single bearing of the non-ball bearing type for the rotor.

公开(公告)号：US20230392605A1

公开(公告)日：2023-12-07

申请号：US17832360

申请日：2022-06-03

申请人： General Electric Company

发明人： David Raju Yamarthi ,  Brian G. Brzek ,  Adam Joseph Wangler ,  David Justin Brady ,  Prachi Anand Tappu ,  Santosh Pattnaik ,  Mohan Kannaiah Raju

IPC分类号： F04D29/046 ,  F04D25/06 ,  F04D29/20

CPC分类号： F04D29/046 ,  F04D25/06 ,  F04D29/20

摘要： Impeller bearings for pumps are disclosed. An example fluid pump includes a motor, a shaft coupled to a rotor of the motor, an impeller coupled to the shaft, a first radial bearing positioned around the shaft of the motor aft of the motor, and a second radial bearing positioned around the impeller.

公开(公告)号：US11649828B2

公开(公告)日：2023-05-16

申请号：US17651959

申请日：2022-02-22

申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION

发明人： Hiroyuki Miyata ,  Hideki Nagao

IPC分类号： F04D29/20 ,  F04D29/044 ,  F04D29/043 ,  F04D29/053 ,  F04D29/054 ,  F04D29/58 ,  F04D29/28 ,  F04D25/02 ,  F04D25/16 ,  F04D29/26

CPC分类号： F04D29/20 ,  F04D29/043 ,  F04D29/044 ,  F04D29/053 ,  F04D29/054 ,  F04D29/584 ,  F04D29/5846 ,  F04D25/028 ,  F04D25/163 ,  F04D29/266 ,  F04D29/284

摘要： A rotary machine includes a cylindrical rotary shaft extending in a direction of an axis, a fastening bolt having a bolt body that extends in a direction of an axis O in the rotary shaft to form fastening portions at both ends, a pair of rotary bodies each having an end portion in the direction of the axis that is fixed to each of the pair of fastening portions to be in contact with an end surface of the rotary shaft in the direction of the axis, and a bolt extension mechanism that temporarily extends the bolt body in the direction of the axis.

公开(公告)号：US20230044553A1

公开(公告)日：2023-02-09

申请号：US17395850

申请日：2021-08-06

申请人： Pratt & Whitney Canada Corp.

发明人： Simon Baker-Ostiguy

IPC分类号： F04D29/08 ,  F04D9/00 ,  F04D29/20 ,  F04D29/22

摘要： An assembly is provided for a turbine engine. This turbine engine assembly includes an impeller rotor, a seal land and a lip seal. The impeller rotor is configured to rotate about a rotational axis. The impeller rotor is configured from or otherwise includes impeller rotor material. The seal land extends axially along and circumferentially about the rotational axis. The seal land is mechanically attached to and rotatable with the impeller rotor. The seal land is configured from or otherwise includes seal land material that is different than the impeller rotor material. The lip seal radially engages the seal land.

公开(公告)号：US20230019571A1

公开(公告)日：2023-01-19

申请号：US17861298

申请日：2022-07-11

申请人： Robert Bosch GmbH

发明人： Johannes Walter ,  Claudius Muschelknautz ,  Gerald Zierer ,  Hannes Butscher ,  Pierre Werny ,  Ralf Herrmann ,  Thomas Eckerle

IPC分类号： F04D13/02 ,  F04D29/20 ,  F04D29/041

摘要： The invention is based on a pump apparatus, in particular a magnetic coupling pump apparatus, having a rotor shaft (16), having a pump impeller (22) which is securely connected to the rotor shaft (16), having at least one axial bearing (18) which rotatably supports the rotor shaft (16) at a side facing the pump impeller (22), having a magnetic pump stator (42), having a magnetic pump rotor (44) which is connected to the rotor shaft (16) in a rotationally secure manner, having a containment can (30) which extends between the magnetic pump stator (42) and the magnetic pump rotor (44) and which at least partially closes a central pump space (28), and having at least one central support element (32) which is mounted in the region of the pump impeller (22) in a rotationally secure manner.
It is proposed that the pump apparatus (1) have an elastomer disk (36) which is arranged between the support element (32) and the axial bearing (18) and that the magnetic pump stator (42) and the magnetic pump rotor (44) be arranged with an axial offset (X) with respect to each other, wherein the magnetic pump stator (42) and the magnetic pump rotor (44) are provided as a result of the axial offset (X) to produce an axial force F(ax, mag) in the direction of the elastomer disk (36).

公开(公告)号：US20220252071A1

公开(公告)日：2022-08-11

申请号：US17353718

申请日：2021-06-21

申请人： OneSubsea IP UK Limited

发明人： Anders Brunvold ,  Aasmund Valland ,  Helge Dale

IPC分类号： F04D13/06 ,  F04D29/20 ,  C02F1/44 ,  B01D61/02 ,  B01D61/10 ,  F04D13/08

摘要： A subsea fluid processing system includes an electric motor that rotates a shaft on which impellers are fixedly mounted. Diffusors are static and fixed to the pump housing. The electric motor includes a rotor surrounding the shaft and a stator that is filled with a dielectric stator fluid. The stator is sealed or “canned.” The inner surface of the stator which faces the rotor is canned with a canning non-metallic material. The motor, as well as bearings for the rotating shaft are lubricated and cooled with a fluid that in some cases is taken from the process fluid and some alternative source. Alternative sources include: MEG, methanol, treated seawater and untreated seawater.

公开(公告)号：US20220252070A1

公开(公告)日：2022-08-11

申请号：US17171305

申请日：2021-02-09

申请人： OneSubsea IP UK Limited

发明人： Anders Brunvold ,  Aasmund Valland ,  Helge Dale

IPC分类号： F04D13/06 ,  F04D13/08 ,  F04D29/20 ,  F04D29/40 ,  C02F1/44 ,  H02K1/20 ,  H02K5/132

摘要： A subsea fluid processing system includes an electric motor that rotates a shaft on which impellers are fixedly mounted. Diffusors are static and fixed to the pump housing. The electric motor includes a rotor surrounding the shaft and a stator that is filled with a dielectric stator fluid. The stator is sealed or “canned.” The inner surface of the stator which faces the rotor is canned with a canning non-metallic material. The motor, as well as bearings for the rotating shaft are lubricated and cooled with a fluid that in some cases is taken from the process fluid and some alternative source. Alternative sources include: MEG, methanol, treated seawater and untreated seawater.

公开(公告)号：US20220154733A1

公开(公告)日：2022-05-19

申请号：US17425334

申请日：2020-07-02

申请人： China University of Mining and Technology ,  SHANDONG ZHANGQIU BLOWER CO., LTD.

发明人： Fangwei XIE ,  Shupeng FANG ,  Zuzhi TIAN ,  Gang SHEN ,  Zhencai ZHU ,  Haifang ZHANG ,  Honglei LI ,  Chunjie XU ,  Wancai ZHOU

IPC分类号： F04D29/68 ,  F04D7/04 ,  F04D13/06 ,  F04D29/043 ,  F04D29/20 ,  F04D29/22 ,  F04D29/62

摘要： Disclosed is a permanent magnet direct-drive slurry pump based on gas film drag reduction, which includes a permanent magnet motor, a main shaft, an impeller, and a valve block. The permanent magnet motor includes a housing, a stator core, stator windings, a rotor core, and a permanent magnet. The rotor core and the impeller share the main shaft, and an airflow channel is provided inside the main shaft. The impeller includes a front cover plate, a back cover plate, and blades. The blades are modularly manufactured, and blade gas jet holes and hemispherical pits are provided on the pressure surface. The airflow channel in the main shaft is communicated with the blade gas-jet holes. The valve block is disposed at the tail end of the main shaft so as to control gas exhaust and prevent liquid from entering the shaft. The present invention has such advantages as a small size, high efficiency, and strong wear resistance.

公开(公告)号：US11280249B2

公开(公告)日：2022-03-22

申请号：US16634458

申请日：2018-08-06

申请人： HANON SYSTEMS EFP CANADA LTD.

发明人： Kyle D. Mills

IPC分类号： F01P5/12 ,  F04D13/02 ,  F04D27/00 ,  F04D29/043 ,  F04D29/046 ,  F04D29/20 ,  F04D15/00

摘要： A hybrid coolant pump assembly comprises a housing, a bearing shaft, and an impeller apparatus. The bearing shaft is rotatably supported within an internal cavity of the housing. A first clutch is disposed on the bearing shaft and is operable to drivingly interconnect an input member and the bearing shaft when in an engaged state. The impeller apparatus is positioned about the bearing shaft and configured to pump a fluid. A rotor, disposed within the internal cavity of the housing, extends about the bearing shaft. A stator, disposed within the internal cavity of the housing, extends about the rotor. The rotor rotates relative to the stator and the bearing shaft when the stator is electrically energized. The impeller apparatus is rotatably driven by the bearing shaft when the first clutch is in the engaged state. The impeller apparatus is rotatably driven by the rotor when the stator is electrically energized.