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公开(公告)号：US20240410397A1
公开(公告)日：2024-12-12
申请号：US18608138
申请日：2024-03-18
Applicant: OneSubsea IP UK Limited
Inventor： Bernt-Helge Torkildsen
Abstract: A subsea fluid pressure-increasing machine includes an elongated member that is rotatable about a longitudinal axis. The machine also may include a plurality of impellers each having a leading edge, a trailing edge, a suction side, and a chord line defined by a line between the leading and trailing edges. Each impeller is fixedly mounted to the member such that a chord angle defined by an angle between the chord line and the rotation direction is less than or equal to a stall angle at which a maximum force is exerted on a fluid in a direction primarily parallel to the longitudinal axis when the member is rotated in the rotation direction. At least some of the impellers comprise one or more features that effectively reduce a pressure peak or specific loading of the suction side such that the axial length of the impeller is configured to be reduced without exceeding a desired specific load.
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公开(公告)号：US20240384634A1
公开(公告)日：2024-11-21
申请号：US18748839
申请日：2024-06-20
Applicant: Halliburton Energy Services, Inc.
Inventor： Donn J. Brown , Ketankumar Kantilal Sheth , David McManus
Abstract: An electric submersible pump includes a shaft, a motor mechanically coupled to the shaft, and an impeller rotationally coupled to the shaft. The impeller includes a first hub and a first shroud. The first shroud is concentrically disposed about the first hub and has a first axial end and a second axial end. The second axial end is disposed radially outward with respect to the first axial end. A slope of an interior surface of the first shroud proximate the second axial end is within 20 degrees of being parallel to a longitudinal axis of the shaft. The impeller further includes first vanes extending from the first hub to the first shroud. The electric submersible pump further includes a diffuser fluidly coupled to the impeller. The diffuser includes a second hub, a second shroud concentrically disposed about the second hub, and second vanes extending from the second hub to the second shroud.
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公开(公告)号：US12025136B2
公开(公告)日：2024-07-02
申请号：US17442642
申请日：2020-03-26
Applicant: Schlumberger Technology Corporation
Inventor： Raju Ekambaram , Ruslan Alexandrovich Bobkov , Maksim Radov , Alejandro Camacho Cardenas , David Milton Eslinger , Pradeep Mahadevan , Teng Fei Wang , Kean Wee Cheah , Jaiprakash Natarajan , Sethuraj Arumugam , Benoit Deville
IPC: F04D13/08 , E21B43/12 , F04D1/06 , F04D13/02 , F04D13/06 , F04D29/046 , F04D29/051 , F04D29/44 , F04D29/62
CPC classification number: F04D13/086 , E21B43/128 , F04D1/06 , F04D13/024 , F04D13/0646 , F04D29/046 , F04D29/0513 , F04D29/445 , F04D29/628
Abstract: Systems and methods facilitate pumping of various fluids such as well fluids. An electric submersible pumping system is constructed with an outer housing that contains an integrated pump and motor. The pump may include an impeller disposed within a stator of the motor. The integration of the pump and the motor enables elimination of various components of traditional electric submersible pumping systems to thus provide a simpler and more compact system for pumping fluids.
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公开(公告)号：US12006948B2
公开(公告)日：2024-06-11
申请号：US17589921
申请日：2022-02-01
Applicant: Nidec Corporation
Inventor： Yoshihisa Kitamura , Toshihiko Tokeshi , Takehito Tamaoka , Takaya Okuno
CPC classification number: F04D29/426 , F04D1/06 , F04D13/06 , F04D13/14 , F04D29/4293 , F04D29/586
Abstract: A pump device includes a first pump, a second pump, and a casing. The first pump and the second pump are centrifugal pumps. The casing includes a first pump chamber in which the first pump is located and a second pump chamber in which the second pump is located. The first pump chamber includes a first bottom surface, a first side surface, a first inlet, and a first outlet. The first bottom surface is located on one side in the first direction with respect to a first motor of the first pump. The first side surface is connected to the first bottom surface and extends in the first direction. The first outlet is open with respect to the first side surface. The second pump chamber includes a second bottom surface, a second side surface, a second inlet, and a second outlet.
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公开(公告)号：US20240133394A1
公开(公告)日：2024-04-25
申请号：US18374207
申请日：2023-09-27
Applicant: Richard Paul Kelsall
Inventor： Richard Paul Kelsall
CPC classification number: F04D29/2266 , F04D1/06 , F04D29/24
Abstract: Liquid ring systems are known for compressing gasses. However, known systems include seals on moving surfaces that require high precision manufacturing. A liquid ring rotor is provided and methods of operating the same. A liquid ring rotor for a liquid ring system is provided and comprises a shaft, and one or more fluid diverting members. The shaft includes a hollow interior portion, the hollow interior portion having a first opening and a second opening, the second opening disposed in a surface that extends along a length of the shaft and spaced apart from the first opening in the length of the shaft, wherein the shaft is configured to enable a working fluid to pass along the shaft through the hollow interior portion between the openings.
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公开(公告)号：US11867190B2
公开(公告)日：2024-01-09
申请号：US17195930
申请日：2021-03-09
Applicant: DAB PUMPS S.P.A.
Inventor： Francesco Sinico , Stefano Tazioli , Sara Lucia
IPC: F04D27/00 , F04D13/06 , F04D13/16 , F04D29/00 , F04D29/043 , F04D29/40 , F04D29/42 , F04D1/06 , F04D29/44
CPC classification number: F04D27/001 , F04D13/06 , F04D13/16 , F04D29/007 , F04D29/043 , F04D29/406 , F04D1/06 , F04D1/063 , F04D29/42 , F04D29/445
Abstract: A vertical electric pump for moving a liquid, that includes a containment jacket
a mechanical section, which includes an intake port and a delivery port, an assembly for the movement of the liquid which includes one or more impellers, spaced out by diffusers and keyed on a driving shaft,
an electromechanical section, which includes an electric motor having a rotor and a stator that surrounds the rotor, the rotor being keyed on the driving shaft, and
a set of instruments for the control and monitoring of its operation accessible from a single side of the electric pump.
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公开(公告)号：US11867186B2
公开(公告)日：2024-01-09
申请号：US17291144
申请日：2019-10-14
Applicant: GRUNDFOS HOLDING A/S
Inventor： Michael Helbo Nygaard , Flemming Munk , Søren Kjeldsen
CPC classification number: F04D15/0088 , F04D1/06
Abstract: A sensor arrangement is for monitoring a circulation pump system (1) which includes at least one pump (3). The sensor arrangement includes a first vibration sensor (5) installed at a first pump part (11) of one of the at least one pump (3) and a second vibration sensor (7) installed at a second pump part (13) of the pump (3) and an evaluation module (9). The first pump part (11) and the second pump part (29) have a distance to each other. The evaluation module (9), is configured to discriminate between at least two of k≥2 different types of faults based on comparing first signals received from the first vibration sensor (5) and second signals received from the second vibration sensor (7).
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公开(公告)号：US20230392546A1
公开(公告)日：2023-12-07
申请号：US18248998
申请日：2021-10-19
Applicant: INDIAN INSTITUTE OF TECHNOLOGY, KHARAGPUR
Inventor： CHETANKUMAR SURESHBHAI MISTRY , AKCHHAY KUMAR
Abstract: The present invention is directed to axial-centrifugal contra-rotating compressor system comprising combination of contra-rotating axial compressor stage with a back end centrifugal compressor stage, eliminating stator blades, an inter-stage connecting duct at the entry of the centrifugal compressor and an discharge 5 diffuser at the exit of centrifugal compressor rotor characterized by radial to axial turning annular passage as per the gas turbine engine requirement, favouring reduction in engine size, weight, number of parts, overall engine length and produces a higher-pressure rise and swirl-free discharge towards the combustion chamber. The first low-pressure rotor having at least one axial blading assembly 10 rotates in the direction opposite to the second high-pressure rotor blading assembly comprising of at least one axial rotor and one centrifugal rotor. The blades for axial compressor are adopted of low-aspect ratio configuration for reliable high load stall free operation. The inter-stage connecting duct minimizes total pressure loss. The discharge diffuser recovers higher exit velocity and hence 15 higher kinetic energy.
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公开(公告)号：US11802717B2
公开(公告)日：2023-10-31
申请号：US17170080
申请日：2021-02-08
Applicant: Sustainable H2O Technologies, Inc.
Inventor： Justin McKie
Abstract: A cavitation boiler segment includes a rotor to be coupled with a rotating inner drum and a stator surrounding the rotor segment. The rotor and the stator each include drums with two banks of annular apertures, which overlap to define two cavitation regions. The rotor includes a web bifurcating the rotor between the apertures into an upstream side and a downstream side, each forming a separate fluid passage between a face of the rotor and a bank of apertures. The stator includes a casing enclosing the stator apertures in a fluid passageway. In operation, fluid flows into a first side of the rotor, across a first cavitation region and into the stator, then back across the second cavitation region and into the second side of the rotor where the fluid may flow into a first side of an adjacent segment.
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公开(公告)号：US11788533B2
公开(公告)日：2023-10-17
申请号：US17853295
申请日：2022-06-29
Applicant: Sulzer Management AG
Inventor： Marc Widmer , Daniele Cimmino
CPC classification number: F04D1/10 , F04D1/06 , F04D15/0005 , F04D27/023 , F04D27/0215 , F04D27/0238 , F04D29/2222
Abstract: A multistage centrifugal pump for conveying a fluid includes a pump housing with an inlet to receive the fluid and an outlet to discharge the fluid, a first stage impeller and a last stage impeller to convey the fluid from the inlet to the outlet, a shaft to rotate the first stage impeller and the last stage impeller about an axial direction, a suction chamber arranged upstream of the first stage impeller and in fluid communication with the inlet, a recirculation path for the fluid including a return opening and extending from the return opening to the suction chamber, the return opening located at or in the flow path downstream of the first stage impeller and upstream of the last stage impeller, and a flow control rod disposed in the recirculation path, the flow control rod to adjust a recirculation flow through the recirculation path into the suction chamber.
