公开(公告)号：US12228137B2

公开(公告)日：2025-02-18

申请号：US18281035

申请日：2022-03-04

Applicant: KSB SE & Co. KGaA

Inventor： Tammuz Nobel

IPC: F04D29/22 ,  B33Y80/00 ,  F04D1/00 ,  F04D1/06 ,  F04D17/00 ,  F04D29/62

Abstract: An apparatus for a centrifugal pump includes an impeller. The impeller has a rear shroud on which blades are arranged. The impeller has a hybrid component structure. The hybrid structure includes at least one generative component and at least one conventional component. At least one of the generative component and the conventional component is subdivided into at least two segments.

公开(公告)号：US20250052252A1

公开(公告)日：2025-02-13

申请号：US18635709

申请日：2024-04-15

Applicant: Greenheck Fan Corporation

Inventor： Thomas Frank ,  Vijaya Kumar Kollipara ,  Shamus William Doran ,  Matthew Keener

IPC: F04D29/18 ,  F04D29/22 ,  F04D29/24 ,  F04D29/28 ,  F04D29/38

Abstract: A fan assembly includes an internal housing having an outer internal housing, and an inner internal housing partially disposed within the outer internal housing. The inner internal housing defines an internal cavity, and has a curved exterior surface. Stator blades extend between the inner internal housing and the outer internal housing.

公开(公告)号：US20250020136A1

公开(公告)日：2025-01-16

申请号：US18715101

申请日：2022-12-09

Applicant: Cre 8 Technologies Limited

Inventor： Alan Buys ,  Clifford Roy Warner

IPC: F04D29/22 ,  F04D5/00

Abstract: A multi-phase rotor comprising a disk body, an inlet to receive a liquid into the rotor, and at least one outlet configured to expel the liquid from the internal rotor cavity. A flow path is provided between the inlet and the at least one outlet by a liquid intake channel and internal rotor cavity. The rotor is configured to be rotatable about an axis of rotation and a continuous stable vapour cavity is formed in the internal rotor cavity as the rotor rotates above a stable cavity threshold rotational speed.

公开(公告)号：US12188475B2

公开(公告)日：2025-01-07

申请号：US17000458

申请日：2020-08-24

Applicant: Levitronix GmbH

Inventor： Alexander Schmid ,  Marcel Stettler

IPC: F04D17/16 ,  F04D1/00 ,  F04D13/02 ,  F04D13/06 ,  F04D25/02 ,  F04D29/048 ,  F04D29/18 ,  F04D29/22 ,  F04D29/42

Abstract: A centrifugal pump for conveying a fluid, includes a pump housing, a rotor configured to convey the fluid disposed within the housing; and a stator which, together with the rotor, forms an electromagnetic rotary drive configured to rotate the rotor about an axial direction. The stator is a bearing and drive stator with which the rotor capable of being magnetically driven without contact and magnetically levitated without contact with respect to the stator. The rotor is passively magnetically levitated in the axial direction, and actively magnetically levitated in a radial plane perpendicular to the axial direction. The pump housing includes comprising a bottom and a cover, and the rotor is arranged in the pump housing between the bottom and the cover with respect to the axial direction. An indentation is disposed in the bottom or in the cover, the indentation being configured to generate a local turbulence.

公开(公告)号：US20250003412A1

公开(公告)日：2025-01-02

申请号：US18751333

申请日：2024-06-23

Applicant: NIDEC INSTRUMENTS CORPORATION

Inventor： Takehiko YAZAWA

IPC: F04D13/06 ,  F04D29/22 ,  H02K7/14

Abstract: In this pump apparatus, each of plural gate marks formed in a second blade member is formed at an intermediate position in a circumferential direction of a rotor between two blades that are adjacent to each other in the circumferential direction of the rotor, and the even number of blades are disposed between the gate marks in the circumferential direction of the rotor. The plural gate marks are disposed on an outer side, in the radial direction of the rotor, of an outer circumferential surface of a portion, which is connected to the second blade member, in a magnet holding member formed in a tubular shape.

公开(公告)号：US12168986B2

公开(公告)日：2024-12-17

申请号：US18159003

申请日：2023-01-24

Applicant: Pentair Flow Technologies, LLC

Inventor： Bradley Wiyninger ,  Daniel Allan Beilke ,  Jeff Hermes ,  Eli McElwain

IPC: F04D29/44 ,  F04D1/06 ,  F04D9/02 ,  F04D29/22

Abstract: A self-priming assembly for a multi-stage pump is provided. The self-priming assembly includes a first diffuser with a first central portion, a first diffuser axis, a first arcuate channel within the first central portion, and a first arcuate passage extending through the first central portion and a first peripheral portion having a first ledge. The self-priming assembly also includes a second diffuser with a second central portion, a second diffuser axis, a second arcuate channel within the second central portion, a second arcuate passage extending through the second central portion, and a second peripheral portion having a second ledge. The first ledge abuts the second ledge. Further, the self-priming assembly includes an impeller with an impeller axis. The first diffuser and the second diffuser are configured to be combined and to receive the impeller therebetween with the first diffuser axis, the second diffuser axis, and the impeller axis aligned.

公开(公告)号：US20240410384A1

公开(公告)日：2024-12-12

申请号：US18700965

申请日：2022-10-10

Applicant: KSB SE & Co. KGaA

Inventor： Christoph JAEGER ,  Axel SCHUNK ,  Tobias SECKINGER

IPC: F04D29/22 ,  F04D1/00

Abstract: A centrifugal pump includes an impeller. The impeller has a rear shroud, on which blades are arranged. The blades are at least partially in contact with a cover plate. Each blade has a projection that is configured to form a joint with the cover plate.

公开(公告)号：US12129856B2

公开(公告)日：2024-10-29

申请号：US17715916

申请日：2022-04-07

Applicant: Yuriy Radzikh

Inventor： Yuriy Radzikh

IPC: F04D1/12 ,  F04D29/22 ,  F04D29/28

CPC classification number: F04D1/12 ,  F04D29/2255 ,  F04D29/288

Abstract: A rotor having spiral pathways to enable liquid or gas to flow from a center to an exterior thereof. The spiral pathways increases power generated (input force) as liquid/gas travels therethrough. The spiral pathway rotor includes an inner disk and an outer disk. Inner disk includes a central opening for receiving the liquid/gas and is connected to a plurality of pathways that extend toward an outer edge in a spiral manner. Nozzles may be utilized to expel the liquid/gas. Outer disk includes an open interior having a plurality of teeth formed on an interior surface. The teeth are configured to receive the liquid/gas expelled from inner disk which causes the rotor to rotate and thus increases the input force thereof. The input force is amplified to an output force on a shaft connected thereto.

公开(公告)号：US20240328428A1

公开(公告)日：2024-10-03

申请号：US18580238

申请日：2022-07-14

Applicant: KSB SE & Co. KGaA

Inventor： Boris JANJIC ,  Sebastian LANG

IPC: F04D29/24 ,  F04D29/22

CPC classification number: F04D29/242 ,  F04D29/2222

Abstract: A centrifugal pump includes a blade arrangement. The blade arrangement has a carrier unit on which blades are arranged. The blades are subdivided into segments. The carrier unit is divided into annular portions which adjoin one another radially. Segments are arranged offset from one another in the annular portions.

公开(公告)号：US20240218767A1

公开(公告)日：2024-07-04

申请号：US18610826

申请日：2024-03-20

Applicant: Halliburton Energy Services, Inc.

Inventor： Donn J. BROWN ,  Ketankumar Kantilal SHETH ,  Casey Laine NEWPORT

IPC: E21B43/12 ,  F04D1/00 ,  F04D29/043 ,  F04D29/22 ,  F04D29/44

CPC classification number: E21B43/128 ,  F04D1/00 ,  F04D29/043 ,  F04D29/22 ,  F04D29/445

Abstract: A downhole gas separator fluid mover assembly comprising a fluid mover having an inlet and an outlet, a separation device, a separation chamber, and a flow path separator located downstream of the fluid mover. The fluid mover comprising a centrifugal pump stage with an impeller and a diffuser moves production fluid comprising a high viscosity fluid portion and a gas portion to the separation device. The separation device produces a fluid motion that separates the gas phase from the liquid phase in response to the flow rate of production fluid from the fluid mover. A portion of the high viscosity fluid passes through the gas phase discharge port in response to the over-supply of high viscosity fluid to the liquid discharge port in response to the flow rate of the production fluid through the fluid mover.