公开(公告)号：US20240410383A1

公开(公告)日：2024-12-12

申请号：US18807714

申请日：2024-08-16

Applicant: Schlumberger Technology Corporation

Inventor： Pradeep Mahadevan ,  TengFei Wang ,  Raju Ekambaram ,  Kean Wee Cheah ,  Sethuraj Arumugam ,  Kim Hoo Goh

IPC: F04D29/046 ,  E21B43/12 ,  F04D13/10 ,  F16C17/02

Abstract: Anti-rotation bearing assemblies for electric submersible pumps are provided. An electric submersible pump includes a plurality of centrifugal pump stages, each stage including a rotating impeller and a stationary diffuser mounted on a shaft coupled to a motor. In use, the motor rotates the shaft, which rotates the impeller within the stationary diffuser. A bearing assembly can include a bearing sleeve disposed about the shaft and a bushing disposed radially between the bearing sleeve and the diffuser. The bearing sleeve rotates with the shaft in operation, and the bushing remains stationary with the diffuser. The bushing can have an external key that is received in a keyway or groove in the diffuser to act as an anti-rotation feature. In other variations, the bushing can have an eccentric or oblique profile, which can act as an anti-rotation feature.

公开(公告)号：US12161854B2

公开(公告)日：2024-12-10

申请号：US17535377

申请日：2021-11-24

Applicant: PROCYRION, INC.

Inventor： Ronald G. Earles ,  Jason J. Heuring ,  Christopher A. Durst ,  Omar Benavides

IPC: A61M60/825 ,  A61M60/13 ,  A61M60/139 ,  A61M60/221 ,  A61M60/226 ,  A61M60/419 ,  A61M60/585 ,  A61M60/824 ,  F04D7/00 ,  F04D13/02 ,  F04D13/06 ,  F04D29/043 ,  F04D29/046 ,  F04D29/18 ,  F04D29/52 ,  A61M60/808 ,  A61M60/82

Abstract: A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.

公开(公告)号：US20240352354A1

公开(公告)日：2024-10-24

申请号：US18759861

申请日：2024-06-29

Applicant: MAWETAL LLC

Inventor： Mohammed Wohaibi ,  Tom F. Pruitt

IPC: C10G67/04 ,  C10C3/00 ,  C10G63/06 ,  C10G65/02 ,  C10J3/84 ,  C10L1/04 ,  F04D13/08 ,  F04D29/046 ,  F04D29/60

CPC classification number: C10G67/0463 ,  C10C3/002 ,  C10G63/06 ,  C10G65/02 ,  C10G67/0454 ,  C10J3/84 ,  C10L1/04 ,  F04D13/086 ,  F04D29/0462 ,  F04D29/606 ,  C10G2300/202 ,  C10J2300/165 ,  C10J2300/1675 ,  C10J2300/1807 ,  C10L2200/0407 ,  C10L2200/0438 ,  C10L2270/02 ,  C10L2270/026 ,  C10L2270/04 ,  C10L2270/08 ,  C10L2290/06 ,  C10L2290/10 ,  C10L2290/543 ,  C10L2290/544 ,  F05B2240/52

Abstract: Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.

公开(公告)号：US20240352353A1

公开(公告)日：2024-10-24

申请号：US18759860

申请日：2024-06-29

Applicant: MAWETAL LLC

Inventor： Mohammed Wohaibi ,  Tom F. Pruitt

IPC: C10G67/04 ,  C10C3/00 ,  C10G63/06 ,  C10G65/02 ,  C10J3/84 ,  C10L1/04 ,  F04D13/08 ,  F04D29/046 ,  F04D29/60

CPC classification number: C10G67/0463 ,  C10C3/002 ,  C10G63/06 ,  C10G65/02 ,  C10G67/0454 ,  C10J3/84 ,  C10L1/04 ,  F04D13/086 ,  F04D29/0462 ,  F04D29/606 ,  C10G2300/202 ,  C10J2300/165 ,  C10J2300/1675 ,  C10J2300/1807 ,  C10L2200/0407 ,  C10L2200/0438 ,  C10L2270/02 ,  C10L2270/026 ,  C10L2270/04 ,  C10L2270/08 ,  C10L2290/06 ,  C10L2290/10 ,  C10L2290/543 ,  C10L2290/544 ,  F05B2240/52

Abstract: Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.

公开(公告)号：US20240167478A1

公开(公告)日：2024-05-23

申请号：US18282747

申请日：2022-01-05

Applicant: EBARA CORPORATION

Inventor： Yasutaka KONISHI ,  Hiroyuki KAWASAKI

IPC: F04D13/06 ,  F04D1/08 ,  F04D29/041 ,  F04D29/046 ,  F04D29/60

CPC classification number: F04D13/06 ,  F04D1/08 ,  F04D29/041 ,  F04D29/046 ,  F04D29/60

Abstract: The present invention relates to a motor pump, a pump unit, and a method of balancing an impeller of the motor pump. The motor pump includes an impeller (1), a rotor (2), a stator (3), and a bearing (5). The rotor (2) and the bearing (5) are arranged in a suction side region (Ra) of the impeller (1).

公开(公告)号：US11982286B2

公开(公告)日：2024-05-14

申请号：US18287497

申请日：2022-04-12

Applicant: ORMAT TECHNOLOGIES, INC.

Inventor： Benjamin Eilan ,  Boris Polyak ,  Nadav Darf ,  Alex Katz ,  Oren Ram

IPC: F04D29/06 ,  F04D13/10 ,  F04D29/046

CPC classification number: F04D29/061 ,  F04D13/10 ,  F04D29/046 ,  F05D2230/64

Abstract: A well pumping apparatus including a discharge head (110), a drive string rod (130) in fluid communication with an inner cavity (142) of a production tubing (140), a pre-lubrication port (160) at the discharge head, and lubrication cups (134) installed along the drive string rod adjacent to sets of bearings (150) distributed along the drive string rod.

公开(公告)号：US20240128483A1

公开(公告)日：2024-04-18

申请号：US18482858

申请日：2023-10-07

Applicant: CUMMINS INC. ,  HYDROGENICS CORPORATION

Inventor： Christopher NELSON ,  Bryn EPP ,  Nathaniel Ian JOOS

IPC: H01M8/04089 ,  F04D13/06 ,  F04D29/046 ,  F04D29/08 ,  F04D29/58 ,  H01M8/04007 ,  H01M8/04303 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/04955

CPC classification number: H01M8/04097 ,  F04D13/06 ,  F04D29/046 ,  F04D29/08 ,  F04D29/586 ,  H01M8/04007 ,  H01M8/04303 ,  H01M8/04708 ,  H01M8/04753 ,  H01M8/04955

Abstract: A recirculation pump includes an impeller, a pump motor assembly, and a heater. The pump motor assembly includes a pump housing having a pump cavity and a pump motor arranged in the pump cavity that drives the impeller, the pump housing arranged axially away from the impeller. The heater is disposed on or in the pump housing and spaced apart from the impeller. The heater is configured to increase a temperature of any portion of the fluid that leaks from the impeller into the pump cavity and resides in the pump cavity. The increase in the temperature causes the fluid that resides in the pump cavity to flow toward the impeller and exit the pump cavity.

公开(公告)号：US11920095B2

公开(公告)日：2024-03-05

申请号：US17513214

申请日：2021-10-28

Applicant: MAWETAL LLC

Inventor： Mohammed Wohaibi ,  Tom F. Pruitt

IPC: C10L1/04 ,  C10C3/00 ,  C10G63/06 ,  C10G65/02 ,  C10G67/04 ,  C10J3/84 ,  F04D13/08 ,  F04D29/046 ,  F04D29/60

CPC classification number: C10G67/0463 ,  C10C3/002 ,  C10G63/06 ,  C10G65/02 ,  C10G67/0454 ,  C10J3/84 ,  C10L1/04 ,  F04D13/086 ,  F04D29/0462 ,  F04D29/606 ,  C10G2300/202 ,  C10J2300/165 ,  C10J2300/1675 ,  C10J2300/1807 ,  C10L2200/0407 ,  C10L2200/0438 ,  C10L2270/02 ,  C10L2270/026 ,  C10L2270/04 ,  C10L2270/08 ,  C10L2290/06 ,  C10L2290/10 ,  C10L2290/543 ,  C10L2290/544 ,  F05B2240/52

Abstract: Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.

公开(公告)号：US11892005B2

公开(公告)日：2024-02-06

申请号：US17832797

申请日：2022-06-06

Applicant: Danfoss A/S

Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Achuthan Babu

IPC: F04D29/04 ,  F04D29/08 ,  F04D29/046 ,  F16J15/20 ,  B33Y80/00

CPC classification number: F04D29/0465 ,  F04D29/086 ,  F16J15/20 ,  B33Y80/00

Abstract: A hydraulic machine includes a first member (1) having a first structure (2) for a hydraulic medium opening in a first interface surface (3) and a second member having a second structure for the hydraulic medium opening in a second interface surface is described, the first interface surface (3) being in contact with the second interface surface, wherein at least one of the members (1) is provided with a support element (6) surrounding the member (1). Such a machine should have a good efficiency. To this end the support element (6) has a strength varying in circumferential direction around the member (1) and/or in thickness direction in a middle region of the member (1).

公开(公告)号：US11864713B2

公开(公告)日：2024-01-09

申请号：US16478372

申请日：2018-01-16

Applicant: LG Electronics Inc.

Inventor： Younggyu Jung ,  Seungjo Baek ,  Seongho Cho

IPC: A47L5/22 ,  F16C37/00 ,  H02K7/14 ,  H02K9/06 ,  F04D29/056 ,  F04D29/046 ,  H02K5/20

CPC classification number: A47L5/22 ,  F16C37/00 ,  H02K7/14 ,  H02K9/06 ,  F04D29/046 ,  F04D29/056 ,  H02K5/207

Abstract: A fan motor includes: a motor body; a rotary shaft assembly having a rotor and a bearing mounted on a rotary shaft; a stator that surrounds the rotor; an impeller connected to the rotary shaft; and a bracket including a bearing housing portion for receiving the bearing. The bearing housing portion defines a bearing heat dissipating flow path that allows air to be discharged to an outside of the bearing housing portion after passing between the outer surface of the bearing and the bearing housing portion. Air blown from the impeller can absorb heat of the bearing by contacting an outer surface of the bearing while passing through the bearing heat dissipating flow path.