公开(公告)号：US12025150B2

公开(公告)日：2024-07-02

申请号：US16780280

申请日：2020-02-03

申请人： Sulzer Management AG

发明人： Steve Milojevic

IPC分类号： F04D29/42 ,  F04D1/06 ,  F04D29/44 ,  F15D1/04

CPC分类号： F04D29/42 ,  F04D1/06 ,  F04D29/445 ,  F15D1/04 ,  F05B2240/14 ,  F05B2260/60

摘要： A multistage pump includes a pump casing, a shaft, a first impeller, a second impeller, and a pipe. The shaft is rotatably disposed within the pump casing and has a longitudinal axis. The first impeller is disposed within the casing at a first position along the shaft. The second impeller is disposed within the casing at a second position and along the shaft. The pipe is detachably attached to the pump casing, and has an inlet and an outlet, the inlet disposed at the discharge of the first impeller and the outlet disposed at an eye of the second impeller, such that discharge from the first impeller can be conveyed to the eye of the second impeller.

公开(公告)号：US20240026903A1

公开(公告)日：2024-01-25

申请号：US18474534

申请日：2023-09-26

申请人： Kinetic Technology Systems, LLC

发明人： Gary Cornwell

IPC分类号： F04D29/66 ,  F04D29/44 ,  F04D13/02 ,  F04D13/06

CPC分类号： F04D29/669 ,  F04D29/445 ,  F04D13/024 ,  F04D13/06

摘要： An energy-conserving fluid pump is an apparatus used to transport low viscosity fluids like water and fuel without experiencing cavitation, recirculation, nor motor locking while also conserving energy. The apparatus includes a fluid diffuser, a fluid densifier, a convergent housing, and a strut assembly. The fluid diffuser improves the efficiency of the apparatus by expanding the fluid inflow and maintaining a fluid pressure buildup. The fluid densifier shears the incoming fluid flow from the fluid diffuser and increases the fluid outflow pressure. The convergent housing encloses the fluid diffuser and the fluid densifier while facilitating the outflow of the pressurized fluid without the loss of fluid pressure nor cavitation. In addition, the convergent housing facilitates the transfer of torque to the fluid diffuser for the operation of the apparatus. The strut assembly keeps the fluid densifier stationary while enabling the rotation of the convergent housing and/or the fluid diffuser.

公开(公告)号：US11867184B2

公开(公告)日：2024-01-09

申请号：US17873322

申请日：2022-07-26

申请人： ECOTECH, INC.

发明人： Timothy Marks ,  Patrick Clasen ,  Justin Lawyer

IPC分类号： F04D13/02 ,  F04D29/043 ,  F04D29/046 ,  F04D29/20 ,  F04D29/42 ,  A61H33/00 ,  F04D13/06 ,  F04D29/44 ,  F04D29/62 ,  F04D29/041 ,  H02K49/10 ,  F04D29/60 ,  H02K1/22 ,  F04D29/02 ,  A01K63/04 ,  A61H35/00 ,  F04D13/08

CPC分类号： F04D13/027 ,  A61H33/60 ,  F04D13/026 ,  F04D13/0666 ,  F04D29/026 ,  F04D29/043 ,  F04D29/046 ,  F04D29/0413 ,  F04D29/0465 ,  F04D29/20 ,  F04D29/426 ,  F04D29/445 ,  F04D29/448 ,  F04D29/605 ,  F04D29/628 ,  H02K1/22 ,  H02K49/108 ,  A01K63/047 ,  A61H35/006 ,  A61H2201/1215 ,  F04D13/08

摘要： A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade.

公开(公告)号：US11835061B1

公开(公告)日：2023-12-05

申请号：US18054358

申请日：2022-11-10

申请人： INDUSTRIAL FLOW SOLUTIONS OPERATING, LLC

发明人： Ken Patton ,  Kiritkumar Patel

IPC分类号： F04D7/04 ,  F04D29/42 ,  F04D29/62 ,  F04D29/44

CPC分类号： F04D29/445 ,  F04D7/045 ,  F04D29/426 ,  F04D29/628

摘要： A split volute for a centrifugal pump is disclosed that provides a manufacturing advantage by improving the yield of high-chrome iron casting, providing for full surface coating capability using line-of-sight spray coating systems. Performance improvements include improved pump efficiency, abrasion resistance, and volute lifetime. Additional operational cost savings are enabled through reduced time required for common volute maintenance procedures and an increased replacement interval for the volute. Taken together, these advantages reduce the total cost of ownership of the split volute pump system.

公开(公告)号：US11795951B2

公开(公告)日：2023-10-24

申请号：US17307934

申请日：2021-05-04

申请人： Baker Hughes Oilfield Operations LLC

发明人： Zheng Ye ,  Ignacio Martinez ,  Risa Rutter ,  Mark Paquette

IPC分类号： F04D13/10 ,  F04D29/44 ,  F04D1/06 ,  F04D29/22

CPC分类号： F04D13/10 ,  F04D1/06 ,  F04D29/22 ,  F04D29/445

摘要： A submersible well pump has a rotatable drive shaft extending through pump stages. Each of the stages has a diffuser, an impeller and a bushing fixed for non-rotation in the diffuser. A thrust member has a lower side in sliding rotating engagement with the upward facing surface of the bushing. The bushing and the thrust member are of a harder material than the diffuser and the impeller. A drive member of a softer material than the thrust member is in engagement with the thrust member and has a drive member bore through which the shaft extends. A key extends through the shaft groove, the impeller groove and the drive member groove to cause the impeller and thrust member to rotate with the shaft.

公开(公告)号：US20180291921A1

公开(公告)日：2018-10-11

申请号：US15483503

申请日：2017-04-10

申请人： Hamilton Sundstrand Corporation

发明人： Adrian L. Stoicescu ,  Benjamin T. Harder

IPC分类号： F04D29/42 ,  F02C7/22 ,  F04D7/02

CPC分类号： F04D29/4293 ,  F02C7/22 ,  F02C7/236 ,  F04D7/02 ,  F04D29/426 ,  F04D29/445 ,  F05D2230/10 ,  F05D2250/74 ,  Y02T50/673

摘要： A boost pump includes a housing cover and a pump housing engaged opposite to the housing cover. Volute passages are defined between the housing cover and the pump housing. The volute passages include a circumferentially extending volute defining a plurality of cross sections defined in a housing including the pump housing and the housing cover. The plurality of surfaces are defined as a set of dimensions set out in at least one of TABLES 1 through 3.

公开(公告)号：US10077814B2

公开(公告)日：2018-09-18

申请号：US15123785

申请日：2015-03-02

申请人： VOITH PATENT GMBH

发明人： Thomas Vogel ,  Rainer Schips

IPC分类号： F16D33/14 ,  F16D33/10 ,  F16D33/06 ,  F16D33/18 ,  F04D29/22 ,  F04D29/42 ,  F04D29/44

CPC分类号： F16D33/10 ,  F04D29/22 ,  F04D29/4293 ,  F04D29/445 ,  F16D33/06 ,  F16D33/18

摘要： A hydrodynamic machine contains a bladed primary wheel driven by a rotary shaft and a bladed secondary wheel, which together form a work chamber filled with a working medium. The machine has a pressure pump for delivering a working medium from the work chamber. The pressure pump has a first inlet, which projects into the work chamber, and has a first inlet opening which is aligned with the rotary shaft in the circumferential direction. The pressure pump has a second inlet which projects into the work chamber and has a second inlet opening which is aligned to the rotary shaft in the circumferential direction opposite to the first inlet opening. The first and second inlets are joined to a common working medium channel behind the two inlet openings. The first and second inlets extend adjacent to each other in the same flow direction separated by a separation wall.

公开(公告)号：US20180112673A1

公开(公告)日：2018-04-26

申请号：US15561742

申请日：2015-12-29

申请人： Sulzer Management AG

发明人： Heikki MANNINEN ,  Reijo VESALA

IPC分类号： F04D29/24 ,  F04D29/44

CPC分类号： F04D29/24 ,  F04D1/00 ,  F04D7/04 ,  F04D29/22 ,  F04D29/2261 ,  F04D29/445

摘要： An impeller structure for a centrifugal pump that can feed both fibrous suspensions and water into a headbox of a fibrous web machine. The centrifugal pump utilizing the impeller structure pumps stock for both liquid-laid and foam-laid paper, tissue or board making applications and pumps water or other dilution fluid into a headbox circulation. In general, the impeller of the present invention is especially suitable for all such pumping tasks in the production of fibrous webs that a pulseless or low-pulse impeller is needed.

公开(公告)号：US20180080471A1

公开(公告)日：2018-03-22

申请号：US15563361

申请日：2016-03-24

申请人： EBARA CORPORATION ,  ADVANCED DESIGN TECHNOLOGY LTD.

发明人： Yumiko SEKINO ,  Hiroyoshi WATANABE ,  Faidon CHRISTAKOPOULOS ,  Mehrdad ZANGENEH

IPC分类号： F04D29/44 ,  F04D29/22

CPC分类号： F04D29/445 ,  F04D1/06 ,  F04D29/043 ,  F04D29/22 ,  F04D29/448 ,  F05D2250/52

摘要： In a fluid machine, there is provided each diffuser flow passage for making uniform a flow in a downstream of a diffuser. The fluid machine is provided, and it has the diffuser for converting kinetic energy of a fluid into pressure energy. The diffuser has first and second diffuser flow passages configured so that the fluid passes through them, and shapes of the first and second diffuser flow passages are different from each other.

公开(公告)号：US20180045222A1

公开(公告)日：2018-02-15

申请号：US15653798

申请日：2017-07-19

申请人： Sulzer Management AG

发明人： Arnaldo RODRIGUES

IPC分类号： F04D29/54 ,  F16L43/00 ,  F04D29/60 ,  F04D29/66 ,  F04D29/42 ,  F04D29/44

CPC分类号： F04D29/548 ,  B23K31/022 ,  F04D29/4273 ,  F04D29/4293 ,  F04D29/445 ,  F04D29/605 ,  F04D29/669 ,  F04D29/708 ,  F05D2250/511 ,  F16L43/002

摘要： An intake device for a pump includes an inlet section extending in a first direction for guiding a fluid, an outlet section for delivering the fluid to an inlet of the pump, the outlet section extending in a second direction perpendicular to the first direction, and a diverting section for diverting the fluid from the first to the second direction, the diverting section connecting the inlet and outlet sections, and having a bottom wall opposing the an outlet opening and a back wall opposing an inlet opening, the inlet section tapering towards the diverting section to decrease a cross sectional area of the inlet section, the diverting section includes a splitter member arranged on the bottom wall that tapers in the second direction towards the outlet opening, and the outlet section includes an essentially bell shaped reducing part for decreasing a cross sectional area of the outlet section.