公开(公告)号：US12215706B2

公开(公告)日：2025-02-04

申请号：US18563220

申请日：2022-05-11

Applicant: Electricite de France

Inventor： Julien Freychet ,  Mohand Adjemout ,  Pascal Andre ,  Mohamed-Amine Hassini ,  Benoit De Laage De Meux

IPC: F04D29/06 ,  F04D7/08 ,  F04D29/10 ,  G21C15/243

Abstract: The present invention relates to a rotary machine (10), comprising a casing (32) delimiting an oil compartment (31), a shaft (33), a bearing (22, 23, 24), an oil sealing device (35) located between the rotary portion (360) and the upper portion (320) of the casing (32), characterised in that the oil sealing device (35) comprises at least one groove (52) for drawing in external air in the direction (S) of rotation of the shaft (33), the groove (52) being located in the rotary portion (360) and/or in the upper portion (320) of the housing (32), the rotary portion (360) not being in contact with the upper portion (320), the groove (52) for drawing in external air being configured to draw air from the upstream end (521) to the downstream end (522) towards the compartment (31) when the shaft (33) rotates in the direction (S).

公开(公告)号：US20240301888A1

公开(公告)日：2024-09-12

申请号：US18584217

申请日：2024-02-22

Applicant: ECP Entwicklungsgesellschaft mbH

Inventor： Thorsten Siess

IPC: F04D29/02 ,  A61M60/13 ,  A61M60/148 ,  A61M60/226 ,  A61M60/237 ,  A61M60/414 ,  A61M60/804 ,  B29C45/16 ,  B29C45/27 ,  B29C45/72 ,  B29L31/00 ,  F04D3/02 ,  F04D29/06 ,  F04D29/18

CPC classification number: F04D29/026 ,  A61M60/13 ,  A61M60/226 ,  A61M60/237 ,  A61M60/414 ,  A61M60/804 ,  B29C45/16 ,  B29C45/2708 ,  B29C45/7207 ,  F04D29/181 ,  A61M60/148 ,  B29L2031/7498 ,  F04D3/02 ,  F04D29/06

Abstract: Disclosed is a rotor for a compressible fluid pump, in particular a blood pump that can be introduced into a patient's body through a blood vessel; said rotor comprises one or more impeller elements, is compressible and expansible between an expanded state and a compressed state, is made at least in part of a fiber-reinforced plastic material, is provided for rotating about an axis of rotation, and is characterized in that in the expanded state of the rotor, a first percentage, i.e. more than 30%, in particular more than 50%, of the fibers runs substantially straight between the first end (10a, 11a, 13a) thereof lying closest to the axis of rotation and a second end lying further away from the axis of rotation. According to the invention, the rotor retains its shape very well even when subjected to repeated mechanical stress.

公开(公告)号：US12006946B2

公开(公告)日：2024-06-11

申请号：US17454072

申请日：2021-11-09

Applicant: Sulzer Management AG

Inventor： Karel De Raeve ,  Thomas Welschinger

IPC: F04D29/06 ,  F04D1/08 ,  F04D13/08 ,  F04D29/041 ,  F04D29/047 ,  F16C17/02 ,  F16C17/08 ,  F16C17/14

CPC classification number: F04D29/061 ,  F04D1/08 ,  F04D13/086 ,  F04D29/0413 ,  F04D29/0416 ,  F04D29/0473 ,  F16C17/02 ,  F16C17/08 ,  F16C17/14

Abstract: A process fluid lubricated pump includes a housing with an inlet to receive the fluid, and an outlet to discharge the fluid, a shaft extending from a drive end to a non-drive end and rotatable about an axial direction, the drive end of the shaft arranged outside the housing, a hydraulic unit including impellers mounted on the shaft, a collection chamber to collect leaking process fluid, the collection chamber comprising an exit, through which the shaft passes, and an exit to discharge the process fluid, and a throttle device arranged between the hydraulic unit and the collection chamber, the throttle device comprising a stationary throttle part having first and second axial faces delimiting the stationary throttle part, the first axial face facing the collection chamber, and the throttle device including a throttle gap surrounding the shaft and extending from the first axial face to the second axial face.

公开(公告)号：US20240133278A1

公开(公告)日：2024-04-25

申请号：US18400558

申请日：2023-12-29

Applicant: Upwing Energy, LLC

Inventor： David Biddick ,  Patrick McMullen ,  Christopher Matthew Sellers ,  Herman Artinian

IPC: E21B43/12 ,  F04D13/02 ,  F04D13/06 ,  F04D13/08 ,  F04D13/10 ,  F04D29/06 ,  H02K7/14

CPC classification number: E21B43/128 ,  F04D13/024 ,  F04D13/0606 ,  F04D13/086 ,  F04D13/10 ,  F04D29/061 ,  H02K7/14

Abstract: An electric machine is configured to be positioned within a wellbore. The electric machine enclosed within a housing isolates the electric machine from fluids within the wellbore. A first lubrication circuit includes a lubrication reservoir within the housing. The lubrication reservoir is fluidically connected to the electric machine. The first lubrication circuit is configured to provide lubrication to a bearing within the electric machine. A fluid rotor is configured to move or be moved by a fluid within the wellbore. A magnetic coupling couples the fluid rotor and a rotor of the electric machine to rotate in unison. A second lubrication circuit is configured to provide lubrication to a bearing supporting the fluid rotor.

公开(公告)号：US11873841B1

公开(公告)日：2024-01-16

申请号：US17746162

申请日：2022-05-17

Applicant: W.S. Darley & Co.

Inventor： Sheldon Susa ,  Wayne Hable ,  Amanda Normand ,  Jeff Smith

IPC: F04D29/58 ,  F04D1/00 ,  F16H57/04 ,  F04D29/06

CPC classification number: F04D29/5866 ,  F04D1/00 ,  F04D29/061 ,  F16H57/0415 ,  F16H57/0471

Abstract: Drive casings, heat exchange systems and methods for cooling lubricant within the casings which house within a main cavity of the casing a drive shaft, bearings or gears of an engine-driven apparatus, the casing having an integrated base defining a heat exchanger cavity and separating the heat exchanger cavity from the main cavity, where the base receives cooling liquid within the heat exchanger cavity, a surface of the base within the main cavity defining a main cavity floor which is slanted with respect to a horizontal plane when in normal use.

公开(公告)号：US11846297B2

公开(公告)日：2023-12-19

申请号：US17209350

申请日：2021-03-23

Applicant: Sulzer Management AG

Inventor： Karel De Raeve ,  Simon Gassmann ,  Thomas Welschinger ,  Benedikt Trottmann

IPC: F04D29/06 ,  F04D1/08 ,  F04D29/041 ,  F04D13/08 ,  F04D29/047 ,  F04D29/58 ,  E21B43/12

CPC classification number: F04D29/061 ,  E21B43/128 ,  F04D1/08 ,  F04D13/086 ,  F04D29/047 ,  F04D29/0413 ,  F04D29/0416 ,  F04D29/0473 ,  F04D29/5886

Abstract: A process fluid lubricated pump includes a pump having a pump shaft extending from a drive end to a non-drive end, first and last stage impellers, a drive unit exerting torque on the drive end to rotate the pump shaft, a balance drum connected to the pump shaft between the pump and the drive end, the balance drum defining a drum front side facing the pump and a drum back side, a relief passage between the balance drum and a first stationary part configured to be stationary with respect to a housing, the relief passage extending from the drum front side to the drum back side, the pump shaft radially supported in a non-contacting manner during operation of the pump, and a hydrodynamic radial pump bearing supporting the pump shaft, the radial pump bearing arranged at the non-drive end or at the drive end of the pump shaft.

公开(公告)号：US20230366410A1

公开(公告)日：2023-11-16

申请号：US18227684

申请日：2023-07-28

Applicant: HELLA GmbH & Co. KGaA

Inventor： Georg DICK ,  Benjamin GROTHE ,  Theodor HUESER ,  Dominik NIESS ,  Thorsten WILLE-RIESS

IPC: F04D29/06 ,  F04D29/58

CPC classification number: F04D29/061 ,  F04D29/5806 ,  F04D29/588 ,  F04D13/06

Abstract: A radial continuous-flow machine with cooling and lubrication by means of a medium flowing through the machine, wherein the medium flows from a high-pressure side to a low-pressure side of the radial continuous-flow machine, having a housing assembly and a rotor assembly that is rotatably mounted in an interior of the housing assembly, wherein at least one first bearing is provided for mounting the rotor assembly in the housing assembly, wherein the rotor assembly includes a rotor of an electric motor and an impeller, wherein the motor includes, in addition to the rotor, a stator that is a part of the housing assembly, wherein the rotor of the motor is arranged in a first region of the rotor assembly, and the stator is arranged in a first region of the housing assembly, wherein the first region of the housing assembly encloses the first region of the rotor assembly.

公开(公告)号：US20230304505A1

公开(公告)日：2023-09-28

申请号：US18122901

申请日：2023-03-17

Applicant: AKTIEBOLAGET SKF

Inventor： Gregory HOFMANN ,  Hans WALLIN ,  Benkui XIA ,  Jingwen ZHANG

IPC: F04D29/06 ,  F16C19/18 ,  F04D25/06

CPC classification number: F04D29/06 ,  F16C19/18 ,  F04D25/06 ,  F16C2360/44

Abstract: A bearing assembly includes a first bearing unit and a second bearing unit for supporting a shaft, in particular a rotor shaft within a centrifugal compressor in which an axial load acts on the shaft in a first or a second axial direction, the second axial direction being opposite to the first axial direction. When the axial load acts in the first axial direction, the first bearing unit is configured to support both an axial load and a radial load and the second bearing unit is configured to support a radial load. Alternatively, when the axial load acts in the second axial direction, the first bearing unit is configured to support a radial load and the second bearing unit is configured to support both an axial load and a radial load.

公开(公告)号：US20230184162A1

公开(公告)日：2023-06-15

申请号：US18090815

申请日：2022-12-29

Applicant: Arctic Cat Inc.

Inventor： Eberhard Wizgall ,  Dominik Hermann

IPC: F02B75/16 ,  F01M9/10 ,  F01L1/02 ,  F02D13/02 ,  F02F7/00 ,  F01M1/06 ,  F01M1/08 ,  F01M11/00 ,  F01M11/12 ,  B60K17/24 ,  F01L1/047 ,  F01L1/24 ,  F04D29/06 ,  F04D29/046 ,  F04D29/66 ,  F16C3/14 ,  F16F15/26 ,  F01P5/12

CPC classification number: F02B75/16 ,  B60K17/24 ,  F01L1/022 ,  F01L1/047 ,  F01L1/2405 ,  F01M1/06 ,  F01M1/08 ,  F01M9/10 ,  F01M11/0004 ,  F01M11/12 ,  F01P5/12 ,  F02D13/0226 ,  F02D13/0242 ,  F02F7/0043 ,  F04D29/046 ,  F04D29/061 ,  F04D29/669 ,  F16C3/14 ,  F16F15/264 ,  F01M2001/062 ,  F01M2011/0087

Abstract: Embodiments are directed toward an engine. In some embodiments, the engine includes a water pump and a balancer shaft. In some embodiments, the water pump has a plain bearing. In some embodiments, plain bearing is supplied with pressurized oil. In some embodiments, the balancer shaft drives the water pump as well as cam shafts.

公开(公告)号：US11493090B2

公开(公告)日：2022-11-08

申请号：US17259030

申请日：2019-07-09

Applicant: Edwards Limited

Inventor： Emiliano Lucchetta

IPC: F16C33/66 ,  F04D19/04 ,  F04D29/056 ,  F04D29/06 ,  F16C19/06 ,  F16C33/38 ,  F16C33/41

Abstract: A bearing cage for a rotor bearing of a turbomolecular pump. The bearing cage includes a plurality of bearing pockets each of which, in use, houses a bearing ball such that the bearing ball operably engages an inner race and an outer race of the rotor bearing. Each bearing pocket of the bearing cage has a primary chamber for housing the bearing ball and each bearing pocket further includes a sump.