公开(公告)号：US20240337264A1

公开(公告)日：2024-10-10

申请号：US18746843

申请日：2024-06-18

Applicant: Vetco Gray Scandinavia AS

Inventor： Giacomo Landi ,  Vittorio Michelassi ,  Matteo Dozzini ,  Francesco Cangioli ,  Massimiliano Borghetti

IPC: F04D17/12 ,  F04D13/06 ,  F04D19/02 ,  F04D25/02 ,  F04D25/06 ,  F04D29/58 ,  H02K1/12 ,  H02K1/16 ,  H02K1/22 ,  H02K3/46 ,  H02K7/14 ,  H02K16/00 ,  H02K21/14 ,  H02K21/22

CPC classification number: F04D17/12 ,  F04D13/06 ,  F04D19/02 ,  F04D19/022 ,  F04D19/024 ,  F04D19/026 ,  F04D25/02 ,  F04D25/0606 ,  F04D29/588 ,  H02K1/12 ,  H02K1/16 ,  H02K1/22 ,  H02K3/46 ,  H02K7/14 ,  H02K16/00 ,  H02K21/14 ,  H02K21/22

Abstract: A compressor or pump stage is provided. The compressor or pump stage at least comprising a central shaft and at least one rotor, wherein an axis of rotation of the at least one rotor is the central shaft, wherein at least two axial thrust bearings are arranged axially remote from each other and being associated with each of the at least one rotor and at least two radial bearings arranged between the at least two axial thrust bearings and the at least one rotor comprises a number, n, of rows of impellers arranged at an outer perimeter of the at least one rotor with an axial distance between neighbouring rows of impellers, where n={2, 3, 4 . . . }

公开(公告)号：US20240309878A1

公开(公告)日：2024-09-19

申请号：US18576413

申请日：2022-06-30

Applicant: NUOVO PIGNONE TECNOLOGIE SRL

Inventor： Angelo GRIMALDI ,  Francesco CANGIOLI ,  Alberto GUGLIELMO

IPC: F04D25/16 ,  F04D17/12

CPC classification number: F04D25/163 ,  F04D17/12

Abstract: The integrally geared compressor comprises a bull gear supported for rotation in a gear casing, and a plurality of pinion shafts supported for rotation in the gear casing. Each pinion shaft comprises a respective pinion, which meshes with the bull gear. A first pinion shaft has a first end drivingly coupled to an axial compressor unit comprising a gas inlet, a gas outlet and an axial compression wheel. A second pinion shaft is drivingly coupled to a centrifugal compressor arrangement.

公开(公告)号：US20240254997A1

公开(公告)日：2024-08-01

申请号：US18631018

申请日：2024-04-09

Applicant: Cooper-Standard AutoMotive Inc.

Inventor： David S. Malone

IPC: F04D27/00 ,  F04D17/12 ,  F04D29/043

CPC classification number: F04D27/004 ,  F04D17/12 ,  F04D29/043

Abstract: A multi-switch pump assembly is disclosed that facilitates switched flow and/or mixed flow from the pump assembly. The multi-switch pump assembly comprises a pump body, an electric motor, a rotating motor shaft, a first pump stage and impeller, and a second pump stage and impeller. The first pump stage includes a first inlet and first and second outlets disposed about the pump body. The second pump stage includes a second fluid inlet connected to a mix chamber. The mix chamber further connected to the second fluid outlet of the first pump stage. The second stage further includes a second and a third outlet disposed about the pump body. An actuator connected to a valve assembly is arranged to operate and place the valve assembly into at least a first, a second, a third and a fourth switched positions to direct fluid flow between the first and the second pump stages and the first, second, third and fourth fluid outlets.

公开(公告)号：US12044245B2

公开(公告)日：2024-07-23

申请号：US17243787

申请日：2021-04-29

Applicant: Copeland LP

Inventor： Michael D. Oakley ,  Michael M. Perevozchikov ,  Matthew J. Swallow

IPC: F04D27/02 ,  F04D17/12 ,  F04D27/00 ,  F04D29/30

CPC classification number: F04D27/001 ,  F04D17/12 ,  F04D29/30

Abstract: A method for determining a mass flow of a dynamic compressor that does not include a mass flow sensor while the compressor is operating to compress a working fluid includes determining, by a processor, a current operating point of the compressor. If the current operating point is the same as one in a map of a plurality of predetermined operating points stored in a memory, the mass flow of that predetermined operating point is retrieved as the mass flow of the current operating point. Otherwise, the processor calculates the mass flow at the current operating point from the mass flows of a subset of the predetermined operating points nearest the current operating point. The dynamic compressor continues to operate to compress the working fluid based at least in part on the calculated mass flow rate for the current operating point.

公开(公告)号：US20240141918A1

公开(公告)日：2024-05-02

申请号：US18281021

申请日：2022-03-04

Applicant: KSB SE & Co. KGaA

Inventor： Tammuz NOBEL

IPC: F04D29/44 ,  F04D17/12 ,  F04D29/62

CPC classification number: F04D29/44 ,  F04D17/12 ,  F04D29/62

Abstract: A centrifugal pump includes at least one impeller. The at least one impeller is surrounded by a casing. The casing includes at least one guide device. The at least one guide device is constructed as a hybrid component. The hybrid component includes at least one conventionally manufactured constituent and at least one generatively manufactured constituent.

公开(公告)号：US11926906B2

公开(公告)日：2024-03-12

申请号：US17201293

申请日：2021-03-15

Applicant: Air Products and Chemicals, Inc.

Inventor： Joseph Gerard Wehrman ,  Paul Higginbotham ,  Vincent White

IPC: C25B1/04 ,  C25B1/50 ,  C25B9/70 ,  C25B15/02 ,  C25B15/08 ,  F04D17/12 ,  F17C5/06 ,  F28C1/00

CPC classification number: C25B1/04 ,  C25B1/50 ,  C25B9/70 ,  C25B15/02 ,  C25B15/083 ,  F04D17/12 ,  F17C5/06 ,  F17C2221/012 ,  F17C2227/0157 ,  F28C1/00

Abstract: A process for producing compressed hydrogen gas, said process comprising electrolysing water to produce hydrogen gas and compressing said hydrogen gas in a multistage compression system to produce compressed hydrogen gas. The multistage compression system comprises at least one centrifugal compression stage, and the hydrogen gas is fed to the centrifugal compression stage at a pre-determined feed temperature and pressure and having a pre-determined relative humidity. The process further comprises adding water and heat to the hydrogen gas upstream of the centrifugal compression stage, as required, to humidify the hydrogen gas to the pre-determined relative humidity.

公开(公告)号：US20240068483A1

公开(公告)日：2024-02-29

申请号：US17894563

申请日：2022-08-24

Applicant: Ronald David Conry

Inventor： Ronald David Conry

IPC: F04D17/12 ,  F04D25/06 ,  F04D29/58

CPC classification number: F04D17/12 ,  F04D25/06 ,  F04D29/584

Abstract: A multi-stage compressor where the refrigerant is transferred from stage to stage internally. The compressor uses a first stage impeller mounted on a first end of motor shaft and a second stage impeller mounted on a second end of the same motor shaft. The motor shaft and both impellers rotate in unison. Refrigerant discharged from the first stage impeller is transferred to the intake of the second state impeller through passages within the compressor itself.

公开(公告)号：US11892000B2

公开(公告)日：2024-02-06

申请号：US17752992

申请日：2022-05-25

Applicant: ResMed Motor Technologies Inc.

Inventor： Barton John Kenyon ,  Peter John Sweeney

IPC: F04D17/16 ,  F04D25/06 ,  F04D29/58 ,  F04D17/12 ,  A61M16/00 ,  F04D29/42 ,  F04D29/44 ,  F04D29/66 ,  F04D25/08 ,  F04D29/02 ,  F04D29/28

CPC classification number: F04D17/164 ,  A61M16/0057 ,  A61M16/0066 ,  F04D17/12 ,  F04D17/122 ,  F04D17/16 ,  F04D17/165 ,  F04D25/06 ,  F04D25/0606 ,  F04D25/08 ,  F04D29/023 ,  F04D29/281 ,  F04D29/4253 ,  F04D29/441 ,  F04D29/444 ,  F04D29/5806 ,  F04D29/667 ,  A61M2205/42

Abstract: A blower for providing a supply of air at positive pressure in the range of approximately 2 cmH2O to 30 cmH20 includes a motor, at least one impeller, and a stationary component. The stationary component includes an inlet and an outlet. The motor, the impeller, the inlet and outlet are co-axial.

公开(公告)号：US20230332607A1

公开(公告)日：2023-10-19

申请号：US18001666

申请日：2020-07-15

Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

Inventor： Naomichi SHIBATA ,  Byeongil AN ,  Takaaki YOSHIZAWA

IPC: F04D25/06 ,  F04D29/42 ,  F04D29/58 ,  F04D29/056 ,  F04D17/12

CPC classification number: F04D25/06 ,  F04D29/4206 ,  F04D29/5826 ,  F04D29/056 ,  F04D17/12

Abstract: A multi-stage electric centrifugal compressor configured to drive impellers disposed at both ends of a rotational shaft by an electric motor includes: the rotational shaft; a low-pressure-stage impeller disposed at one end of the rotational shaft; a high-pressure-stage impeller disposed at the other end of the rotational shaft; a high-pressure-stage housing accommodating the high-pressure-stage impeller; and a connecting pipe for supplying a compressed gas compressed by the low-pressure-stage impeller to the high-pressure-stage housing. The high-pressure-stage housing has a high-pressure-stage inlet opening that opens in a direction intersecting an axis of the rotational shaft. The connecting pipe includes a high-pressure-stage-side connection portion connected to the high-pressure-stage inlet opening.

公开(公告)号：US20230323896A1

公开(公告)日：2023-10-12

申请号：US17718967

申请日：2022-04-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Debabrata Pal ,  Ashutosh Joshi

IPC: F04D29/58 ,  F04D17/12 ,  F04D29/28 ,  F04D25/06

CPC classification number: F04D29/5806 ,  F04D17/12 ,  F04D29/284 ,  F04D25/06

Abstract: A compressor system includes a compressor, and an electric motor driving a shaft to drive the compressor. An inlet is connected to a source of air to be compressed. The inlet is connected to the compressor. A fan impeller is mounted in the inlet upstream of the compressor. A cooling air exit communicates with the inlet, and upstream of the compressor. The cooling air exit is connected to the motor to provide cooling air to the motor. A dual compressor system is also disclosed.