Pump Magnetically Coupled To Rotary Drive Patents (Class 417/420)
  • Patent number: 10954928
    Abstract: A pump including: a stator (4), a rotor (6) slidably and rotatably mounted at least partially in the stator, the rotor comprising a first axial extension (24) having a first diameter (D1) and a second axial extension (26) having a second diameter (D2) greater than the first diameter, a first valve (V1) formed by a first valve seal (18) mounted on the stator around the first axial extension, in conjunction with a first channel (42) in the rotor that is configured to allow liquid communication across the first valve seal when the first valve is in an open position, a second valve (V2) formed by a second valve seal (20) mounted on the stator around the second axial extension, in conjunction with a second channel (44) in the rotor that is configured to allow liquid communication across the second valve seal when the second valve is in an open position, and a pump chamber (8) formed between the rotor and stator and between the first valve seal and second valve seal.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: March 23, 2021
    Assignee: SENSILE MEDICAL AG
    Inventors: Fabian Bürli, Alexandre Perrier, Thomas Wyss
  • Patent number: 10903708
    Abstract: A stator of a brushless motor may include a core; a bobbin including a pair of side surfaces, an inner wall, and an outer wall; a conductor wire wound by being overlapped in plural layers; and a resin layer covering the bobbin and the conductor wire. A profile of the conductor wire may become larger towards an outer circumferential side of the stator. Among portions of the conductor wire arranged along a rotary axis direction of a rotor on at least one side surface included in the pair of side surfaces and located on an innermost circumferential side of the stator in the respective plural layers, a portion of the conductor wire exposed to the resin layer and separated from the inner wall and the outer wall may be tilted from an inner circumferential side of the stator toward the outer circumferential side of the stator.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: January 26, 2021
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Yoshihiko Honda, Akira Hamajima, Ryohei Otaka
  • Patent number: 10876533
    Abstract: A cooling unit comprising a coolant fluid pathway in which there is (a) a centrifugal pump which serves to pump coolant fluid along the pathway when the unit is in use, and (b) a heat exchanger which serves to cool the coolant fluid which is thus pumped along the pathway. The pump has a rotor constituted by a magnetically contactlessly driven impeller which is provided with at last one magnet and which is enclosed within a housing, and stator outside the housing and provided with at least one electromagnet operable to act on the said at least one magnet to rotate the impeller.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 29, 2020
    Assignee: COOLTERA LIMITED
    Inventors: Mark Steven Luxford, David Shon Morgan
  • Patent number: 10873238
    Abstract: A motor includes a stationary portion, a rotating portion that includes a shaft rotating about a vertically extending central axis, and a bearing portion that rotatably supports the shaft with respect to the stationary portion. The stationary portion includes a cylindrical bearing housing portion that holds the bearing portion, a stator that is radially outward of the bearing housing portion, a circuit board that is below the stator, and an annular spacer that is between the stator and the bearing housing portion. The stator includes a stator core that includes an annular core back and multiple teeth that extend radially outward from the core back and are arranged in a circumferential direction, an insulating film that covers a surface of the teeth, extends radially inward from a lower surface of the teeth, and covers a lower outer edge portion of the core back, and a coil provided on the teeth.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 22, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Shinji Takemoto, Keizo Furukawa, Tsuyoshi Hirokawa
  • Patent number: 10865794
    Abstract: An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity and a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The stator assembly is configured to impart a first axial force on the rotor assembly. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. A fluid channeled by the impeller imparts a second axial force on the impeller. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 15, 2020
    Assignees: REGAL BELOIT AUSTRALIA PTY LTD, REGAL BELOIT AMERICA, INC.
    Inventors: Matthew J. Turner, Greg Heins, Mark Thiele, Jason Jon Kreidler
  • Patent number: 10833556
    Abstract: A submersible well pump assembly has a pump driven by an electrical motor. The motor has a number of rotor sections axially separated from each other by radial bearings. Each of the rotor sections has disks stacked together, each of the disks having a central opening and slots circumferentially spaced around the central opening. Metal rods extend through the slots. A center tube extends through the central openings of the disks. The center tube has an outer diameter in an interference fit with the disks. A slot and key arrangement between the inner diameter of the center tube and the motor shaft rotates the motor shaft in unison. The ends of the center tube extend past end rings of the rotor sections and abut with center tubes of adjacent rotor sections.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 10, 2020
    Assignee: Baker Hughes Incorporated
    Inventors: Michael Forsberg, James C. Clingman
  • Patent number: 10738782
    Abstract: A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the canister under catastrophic bearing failure.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 11, 2020
    Assignee: PSG WORLDWIDE, INC.
    Inventors: Rex Warren Beach, Nicholas William Ortega, James Gregory Farley, Christopher Jon Distaso
  • Patent number: 10702641
    Abstract: Blood pumps for ventricular assist devices employ a hollow rotor to impel blood through the blood pump. A blood pump includes a housing having a housing inlet, a housing outlet, and a housing blood flow channel through which the housing inlet and the housing outlet are in fluid communication. A motor stator is disposed around the housing blood flow channel and operable to generate a rotating magnetic field. A hollow rotor is disposed within the housing blood flow channel and rotated via the rotating magnetic field. The hollow rotor has a rotor circumferential wall enclosing a rotor blood flow channel. The hollow rotor has at least one rotor blade extending inwardly from the rotor circumferential wall. The at least one rotor blade is configured to impel blood through the rotor blood flow channel when the hollow rotor is rotated via the rotating magnetic field.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 7, 2020
    Assignee: TC1 LLC
    Inventors: Eric T. Lee, William V. Hodges, Yi-Ren Woo
  • Patent number: 10655631
    Abstract: One embodiment relates to a pump device with an impeller; a pump housing, including a wall surrounding an interior having an inlet and an outlet. The impeller is provided in the interior of the pump housing. The pump housing includes at least one first part-region, at least two further part-regions and at least one third part-region. The at least one first part-region includes, to an extent of at least 60% by weight, based on the total weight of the first part-region, at least one nonmagnetic material, wherein the at least two further part-regions comprise, to an extent of at least 25% by weight, based on the total weight of the further part-region, at least one ferromagnetic material metal, wherein the at least one third part-region comprises a metal content in a range from 40% to 90% by weight, based on the total weight of the third part-region.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: May 19, 2020
    Assignee: Heraeus Deutschland GmbH & Co. KG
    Inventors: Stefan Schibli, Jörg-Martin Gebert, Ulrich Hausch, Oliver Keitel
  • Patent number: 10639602
    Abstract: A molecular mixing system. In one embodiment, the molecular mixing system includes a motorized turntable; a speed controller to control the rotational speed of the motorized turntable; a plurality of magnets arranged in a first Halbach array, the first Halbach array located on the motorized turntable and concentric to the axis of the motorized turntable; and a sample conduit having an input port and an output port and having an outer wall defining a lumen, the sample conduit positioned within and concentric with the first Halbach array.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: May 5, 2020
    Assignee: MEDISIEVE LTD
    Inventors: George Charles Martin Frodsham, Quentin Andrew Pankhurst
  • Patent number: 10568998
    Abstract: A blood pump can include a pump housing, an impeller, and a hub. The pump housing can be configured to move blood from an inlet to an outlet thereof. The impeller can be housed in the pump housing, have a plurality of blades joined by a central ring, and be radially supported at the central ring by a bearing. The hub can transmit torque to the impeller using a radial magnetic coupling.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: February 25, 2020
    Assignee: EVERHEART SYSTEMS INC.
    Inventors: Neil H. Akkerman, Greg S. Aber
  • Patent number: 10422325
    Abstract: A pump draws fluid from a reservoir and drives the fluid downstream to a spray tip where the fluid is applied to a surface. A piston is driven in a reciprocating manner to pump the fluid. A check valve is disposed downstream of the piston to regulate a flow of the fluid downstream from the piston. The pump is initially dry and is primed with fluid prior to operation. To facilitate priming, the piston is dimensioned to impact the ball and unseat a valve member of the check valve during a priming stroke, thereby ejecting any air from the pump through the check valve. With the air ejected from the pump, a vacuum is formed during a suction stroke of the piston, which draws fluid downstream from the reservoir to prime the pump.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 24, 2019
    Assignee: Grace Minnesota Inc.
    Inventor: Mariusz J. Luczak
  • Patent number: 10411571
    Abstract: A magnetic coupling includes an inner rotor (11) and an outer rotor (9) which at least partly surrounds the inner rotor (11). These rotors (11, 9) each are formed of magnetic material (18) and are coupled to one another by way of magnetic forces. The inner rotor (11) and/or the outer rotor (9) contain powdery, magnetizable material (18). The powdery, magnetizable material (18) is magnetized at a side lying opposite the other rotor at several locations distributed over the periphery.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: September 10, 2019
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Flemming Buus Bendixen, Peter Kjeldsteen, Allan Ivo Søgaard
  • Patent number: 10327945
    Abstract: In certain aspects, the invention is directed to magnetic eye shields that comprise a magnet. When worn by a patient, the magnetic eye shields are configured to generate an intraocular magnetic field of sufficient magnitude and direction to move a magnetic therapeutic and/or diagnostic agent positioned inside the eye to target tissue within the eye. Other aspects of the invention pertain to kits which comprise such magnetic eye shields as well as one or more additional components, for example, one or more containers of a magnetic diagnostic and/or or therapeutic agent. Further aspects of the invention pertain to methods of treatment, which comprise intraocularly introducing a magnetic therapeutic and/or diagnostic agent into an eye of a patient and fitting a magnetic eye shield to the head of the patient, wherein the magnetic therapeutic and/or diagnostic agent may be introduced to the patient before or after fitting the magnetic eye shield to the head of the patient.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: June 25, 2019
    Assignee: Emmetrope, Inc.
    Inventors: Jeffrey L. Goldberg, Roger A. Goldberg, Noelia J. Kunzevitzky, Dillon Joseph Rak
  • Patent number: 10294944
    Abstract: A flow thru mechanical bearing system can be used in an implantable rotary blood pump that includes a pump housing. An impeller housed in the pump housing can be radially supported by a row of at least three low friction contact points located on an inside bore of the impeller. The impeller may be axially supported by a second mechanical bearing. The second mechanical bearing may provide at least three axial contact points on the top surfaces of the impeller. The impeller is driven by a magnetic coupling which functions mainly to transmit torque to the impeller. Further, in some cases, the magnetic coupling may restrain axial motion of the impeller.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 21, 2019
    Assignee: EVERHEART SYSTEMS INC.
    Inventors: Greg S. Aber, Allan S. Rhoades
  • Patent number: 10224778
    Abstract: An electric motor vehicle coolant pump includes a pump rotor which pumps a coolant and a drive motor which drives the pump rotor. The drive motor includes a dry motor stator comprising motor coils, a wet motor rotor, and a gap tube configured to separate the dry motor stator and the wet motor rotor from each other in a fluid-tight manner. The gap tube is formed by an integral sheet metal body which, in a gap region between the wet motor rotor and the dry motor stator consists of an austenitic high-grade steel comprising a material thickness of <0.5 mm, a hardness of from 200 to 500, a specific electrical resistance >0.10?×mm2/m, and a relative magnetic permeability<20. The integral sheet metal body forms a sheet metal shell sliding bearing shell of a sliding bearing to radially mount the wet motor rotor.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 5, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Vladimir Popov, Maik Waberski, Ronald Rathke, Jens Teubel
  • Patent number: 10047750
    Abstract: A fluid pump kit is provided. The kit includes a magnetic driven member for coupling with and rotating a propeller, and a magnetic driver for magnetically coupling to and driving the magnetic driven member by a magnetic attraction force establishable between the magnetic driver and the magnetic driven member. A motor of the kit operates the magnetic driver. First and second casings are provided for housing the magnetic driver and the magnetic driven member, respectively. The first and second casings with housed magnetic driver and magnetic driven member, respectively, are detachably securable to opposite sides of a non-magnetic spacer solely by the magnetic attraction force establishable between the magnetic driver and the magnetic driven member sufficient to support the second casing and the housed magnetic driven member in a particular position without the use of mechanical aids.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: August 14, 2018
    Assignee: EcoTech, Inc.
    Inventors: Justin Lawyer, Patrick Clasen, Timothy Marks
  • Patent number: 10048008
    Abstract: An integrated cooling system for actively cooling one or more electronic components in an electronic device such as a computer is provided. The cooling system includes a radiator and a pump integrally attached to the radiator. The pump can include a pump housing having an upper pump housing member attached to the radiator and a lower pump housing member detachably securable to the upper pump housing member. The cooling system includes a flow inlet and a flow outlet for attaching hoses or conduits to the radiator for actively moving a liquid coolant to and from an external cooling block or cooling plate. The external cooling block or cooling plate can be attached to the electronic component to be cooled, such as a computer graphics card, microprocessor or other circuit component.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: August 14, 2018
    Assignee: Rouchon Industries, Inc.
    Inventor: Stephen Mounioloux
  • Patent number: 9927181
    Abstract: An integrated cooling apparatus for actively cooling one or more electronic components in an electronic device such as a computer is provided. The cooling apparatus includes a radiator and a pump integrally mounted on the radiator. The pump can include a pump housing having a first pump housing member attached to the radiator and a second pump housing member detachably securable to the first pump housing member. The apparatus includes a flow inlet and a flow outlet for attaching hoses or conduits to the radiator for actively moving a liquid coolant to and from an external or remote heat exchanger via tubing. An external heat exchanger can be fluidly connected to the integrated cooling apparatus via two or more tubes and thermally attached to the electronic component to be cooled, such as a computer graphics card, microprocessor or other circuit component.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: March 27, 2018
    Inventor: Stephen Mounioloux
  • Patent number: 9926933
    Abstract: An improved bearing and shaft assembly for jet assemblies is disclosed. The improved bearing and shaft assembly includes a bearing assembly having an outer bearing member and an inner bearing member, and a shaft assembly having a shaft member, a shaft protection member, and a locking mechanism. Also, a jet assembly that includes the improved bearing and shaft assembly is disclosed. The jet assembly may be coupled to a motor assembly. The jet assembly further includes the housing that includes at least one inlet aperture and at least one outlet aperture, and an impeller positioned within a cavity of the housing. In addition, a pump comprising a motor assembly and a jet assembly that includes the improved bearing and shaft assembly is disclosed. Furthermore, a method for displacing a fluid using the improved bearing and shaft assembly is disclosed.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: March 27, 2018
    Assignee: Luraco, Inc.
    Inventors: Kevin Le, Thanh Le
  • Patent number: 9841025
    Abstract: A device for the transmission of power using rotating magnetic fields includes a drive shaft with an external magnet, a pump shaft with an internal magnet suited to entrained by the external magnet, a rear tight chamber or containment body for the pump shaft and the internal magnet, the rear body being positioned between the internal magnet and external magnet. The rear body includes at least a glass-shaped casing and one or more probes buried within the thickness of the glass-shaped casing.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: December 12, 2017
    Assignee: M PUMPS PROCESS SRL
    Inventors: Adriano Mischiatti, Antonio Mischiatti, Massimo Mischiatti
  • Patent number: 9768657
    Abstract: A rotating electrical machine includes: a core including an annular yoke portion disposed while being centered around a rotation axis; toothed portions protruding from the yoke portion in a radial direction; and a tooth flange portion circumferentially sticking out from a protruding end of each of the toothed portions while being centered around the rotation axis; and an insulator covering a region from the toothed portion to the tooth flange portion, wherein the insulator includes a tooth cover portion, and a flange cover portion, and a reinforced portion is formed at the boundary between the tooth cover portion and the flange cover portion, and includes a first restricting surface, and a second restricting surface.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: September 19, 2017
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hiroomi Ogawa, Shuji Hattori, Shinya Sakakura
  • Patent number: 9624926
    Abstract: A cooling system for an indwelling heat exchange catheter includes a heat exchange bath that is configured to receive a conduit that carries saline to and from the catheter. A heating/cooling fluid is in the bath and exchanges heat with the saline. The heating/cooling fluid flows through a heat exchanger that includes a refrigerant and two variable speed DC compressor for removing heat from the refrigerant. A gear pump circulates the working fluid to and from the catheter and is removably engaged with a pump support platform.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 18, 2017
    Assignee: Zoll Circulation, Inc.
    Inventors: Wayne A. Noda, Stelica Stelea
  • Patent number: 9551343
    Abstract: 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.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: January 24, 2017
    Assignee: Ecotech Marine, LLC
    Inventors: Timothy Marks, Patrick Clasen, Justin Lawyer
  • Patent number: 9474839
    Abstract: The present invention relates to a Heart Assist Device which comprises a motor, a control unit and an internal battery connected to the motor. The control unit is connected to the motor controlling the motor's operation. The motor of the Heart Assist Device further comprises a rotor without an axial pin running in magnetic bearing. The present disclosure has smaller size and consumes less energy to longer battery lives. The device has high power so that it generates high blood flow. The contact surface is small enough so that it does not cause any harmful effects for blood cells and coagulation systems.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: October 25, 2016
    Inventors: Bulent Oran, Omer Faruk Oran, Elif Oran Avci
  • Patent number: 9277841
    Abstract: The invention refers to a mechanical food treatment processor comprising a driving block topped by a bowl. The driving block comprises a motor connected to a driving device having a substantially vertical axis. The bottom of the bowl comprises an opening to allow the passage of the driving device. The processor further comprises a food treatment tool having a fitting device to be fitted onto the driving device and a magnetizing device exerting a force of attraction between the food treatment tool and the bowl. Thus, it is possible to tilt the bowl with the claimed invention while preventing the treatment tool from inopportunely falling. The tool remains easily dismountable from the bowl and the driving device.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 8, 2016
    Assignee: HAMEUR S.A.
    Inventors: Loïc Xavier Fevre, Nicolas Lapray
  • Patent number: 9245460
    Abstract: Disclosed herein is a multipurpose rotation structure which is installed indoors or outdoors to be utilized for multiple purposes such as experience teaching tools by using repelling force between magnets disposed in an outer ring frame having the shape of a ring and in a weight body rotating in an inner space of the outer ring frame, by particularly using repelling force between magnets disposed in a weight body and a second weight body placed on the same guide ring, or by using repelling force between magnets disposed in an outer ring frame and an inner ring frame that are opposite to each other with respect to a weight body, or by using attractive force and repulsive force between magnets while sequentially changing the polarity of electromagnets disposed in an outer ring frame and an inner ring frame.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 26, 2016
    Inventor: Myong-Sop Shin
  • Patent number: 9227001
    Abstract: A high efficiency blood pump includes a pump housing, wherein the pump housing provides an inlet and outlet. The pump includes a motor housing, wherein the motor housing contains a motor. An impeller is housed in the pump housing, wherein the impeller is radially supported by a hydrodynamic bearing providing at least one row of pattern grooves. A diaphragm provided by the pump housing separates the impeller chamber from the motor chamber. A magnetic coupling is provided between the motor and the impeller, wherein the magnetic coupling causes the impeller to rotate when the motor rotates and provides axial restraint of the impeller.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: January 5, 2016
    Assignee: EVERHEART SYSTEMS INC.
    Inventors: Neil H. Akkerman, Greg S. Aber
  • Patent number: 9211369
    Abstract: An integrated blood pump oxygenator comprises an impeller housing supporting an impeller with an annular hydrogel impeller packing material adjacent the bearings and around the shaft of the impeller. The oxygenator including a rollover outlet in the form of an annular chamber extending around a center pump housing member; and further including an annular chamber within an annular array of hollow fiber membranes in fluid communication with the annular chamber extending from the impeller around the center pump housing; wherein the annular chamber provides substantially perpendicular radial outward cross flow across the membranes.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: December 15, 2015
    Assignee: Ension, Inc
    Inventors: Mark J Gartner, Brian J Fill, Patrick Cahalan, Linda Cahalan, Jeffrey W. Speakman
  • Patent number: 9178405
    Abstract: A magnetic drive coupling apparatus is provided and includes a drive unit having a first rotatable shaft and an open drive assembly, a driven unit having an end face and a second rotatable shaft extending through the end face axially overlap, a magnetic drive coupling having first and second magnetically attractive parts associated with the first and second rotatable shafts, respectively, which transmits rotation between the first and second rotatable shafts and a sealing unit coupled to the end face to encompass the second magnetically attractive part and to hermetically seal oil and refrigerant in an interior of the driven unit.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 3, 2015
    Assignee: CARRIER CORPORATION
    Inventor: Paul J. Flanigan
  • Patent number: 9162471
    Abstract: An ultraviolet ray curable ink jet recording apparatus includes a head for discharging an ink composition for an ultraviolet ray curable ink jet recording, an ink flow path supplying the ink composition for the ultraviolet ray curable ink jet recording to the head, and a gear pump for circulating the ink composition for the ultraviolet ray curable ink jet recording to the ink flow path, in which the ink composition for the ultraviolet ray curable ink jet recording contains a hindered amine compound.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 20, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hiroaki Kida, Masaaki Ando
  • Patent number: 9145894
    Abstract: In a magnetic coupling pump including a closed impeller, and a casing that houses the impeller in such a way that the impeller is rotatable around a rotation axis and movable in an axis direction in which the rotation axis extends, reduction in the rotational frequency of the impeller can be suppressed even if thrust balance collapses temporarily and the impeller and the casing come into contact with each other. A tapered surface (24) or (55) is formed in at least a portion of at least one of a surface (24) or (53) of the impeller (10) and a surface (66) or (86) of a pump casing (60) that faces each other in an axis direction (Da) so that the distance between both the faces varies gradually as it goes in a radial direction (Dr) perpendicular to the axis direction (Da).
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: September 29, 2015
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hideo Hoshi, Syogo Nakashima, Yasuharu Yamamoto, Youko Yamamoto, Takeshi Okubo, Tatsuya Hidaka
  • Patent number: 9133847
    Abstract: A magnetically-levitated centrifugal pump comprises a pump head section and a pump section, where the pump section comprises a stator, a torque transmission disc, a motor, a displacement sensor, and a pump housing.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: September 15, 2015
    Assignees: Tokyo Institute of Technology, Tokyo Medical and Dental University
    Inventors: Wataru Hijikata, Tadahiko Shinshi, Setsuo Takatani
  • Patent number: 9062683
    Abstract: A water pump for a vehicle may include a water pump housing, a water pump drive shaft, a bearing, a first rotation plate connected to one end of the water pump drive shaft, a first magnet mounted on one surface of the first rotation plate, an impeller rotation shaft coaxially disposed with the water pump drive shaft, an impeller bearing rotatably enclosing an exterior circumference of the impeller rotation shaft, a second rotation plate connected to one end of the impeller bearing, a second magnet mounted on one surface of the second rotation plate, and an impeller connected to the other end of the impeller bearing, wherein the one surface of the first rotation plate and the one surface of the second rotation plate may be disposed apart from and face each other, and facing poles of the first and second magnets may be different from each other.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: June 23, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Bongseong Kang
  • Patent number: 9050405
    Abstract: A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapted to cause blood entering the pumping chamber to move to the blood outlet. The impeller has one or more magnetic regions. The impeller is radially constrained in rotation by magnetic coupling to one or more motor stators and is axially constrained in rotation by one or more hydrodynamic thrust bearing surfaces on the impeller.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 9, 2015
    Assignee: HeartWare, Inc.
    Inventors: Jeffrey A. LaRose, Charles R. Shambaugh
  • Publication number: 20150143822
    Abstract: A cryogenic submerged multi-stage pump assembly includes a vertically oriented pump shaft. A permanent magnet electrical motor includes a rotor attached to the pump shaft and a stator disposed about the rotor. A first-stage impeller assembly includes a first impeller attached to the pump shaft, the first impeller configured to move a cryogenic fluid from a first impeller inlet to a first impeller outlet when the pump shaft is rotated by the electric motor. A second-stage impeller assembly includes a second impeller attached to the pump shaft, the second impeller configured to move the cryogenic fluid from a first impeller housing to a second impeller inlet and then to a second impeller outlet when the pump shaft is rotated by the electric motor. The first and a second impeller housing are disposed about the first and second impellers and configured to channel the cryogenic fluid.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventors: Dennis W. Chalmers, Mina Botrous, Mugdha Dokhale, Elidio Ruiz, Mark Geipel
  • Publication number: 20150139831
    Abstract: A pump module may include a pump rotor coupled to a rotating shaft of a motor, and a pump housing configured to accommodate the pump rotor. The pump housing includes a rotor accommodating part having an insertion groove formed therein to accommodate the pump rotor, and a cover connected with the rotor accommodating part and having a fluid sucking hole and a fluid discharging hole.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventor: Ho Eop YOON
  • Publication number: 20150139822
    Abstract: Cooling devices for use with electric submersible pump motors include a refrigerator attached to the end of the electric submersible pump motor with the evaporator heat exchanger accepting all or a portion of the heat load from the motor. The cooling device can be a self-contained bolt-on unit, so that minimal design changes to existing motors are required.
    Type: Application
    Filed: December 19, 2014
    Publication date: May 21, 2015
    Applicants: Chevron U.S.A. Inc., LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Todd Andrew Jankowski, Jose A. Gamboa
  • Publication number: 20150132163
    Abstract: A hydraulic system for a hybrid module which is located between an engine and a transmission includes a parallel arrangement of a mechanical pump and an electric pump. Each pump is constructed and arranged to deliver oil to other portions of the hydraulic system depending on the operational mode. Three operational modes are described including an electric mode, a transition mode, and a cruise mode. Various monitoring and control features are incorporated into the hydraulic system.
    Type: Application
    Filed: January 19, 2015
    Publication date: May 14, 2015
    Inventors: Thomas A. Wright, Ronald E. Dailey
  • Publication number: 20150132162
    Abstract: A slim-type fan structure includes a stator (1) and a fan blade (2). The stator includes a circuit board (11) and a plurality of layout circuits (12) disposed to circumference the circuit board (11). The stator (1) includes an axial center (10) at a center portion thereof. The fan blade (2) includes a blade wheel (20), an axial sleeve (21) at a center of the blade wheel (20) and extended axially therefrom, a plurality of blades (22) formed to circumference an outer of the blade wheel (20), and a magnetic unit (23) disposed on the blade wheel (20). Also, the axial sleeve (21) is pivotally attached to the axial center (10). Accordingly, the magnetic unit (23) is formed by a plurality of N and S pole areas (230), (231) arranged alternatively in circular rows and corresponding to the layout circuits (12) along a vertical direction for the slim design.
    Type: Application
    Filed: September 5, 2014
    Publication date: May 14, 2015
    Inventors: FU-LUNG LIN, SHIH-WEI HUANG, SHUI-FA TSAI
  • Patent number: 9028228
    Abstract: A pump may include a rotatable pumping part, a drive shaft, and a coupling for transmitting rotational movement of the drive shaft to the pumping part. The coupling may include a first part which is connected to the pumping part and a second part which is connected to the drive shaft, the first part having an electrically conductive material and the second part having an element for generating a magnetic field. The second part may be moveable relative to the first part to vary the degree of interaction between a magnetic field generated by the element and the electrically conductive material. Movement of the second part relative to the first part may be caused, at least in part, by a fluid controlled actuator having a piston moveable within a cylinder which is substantially non-rotating, such that the drive shaft and the second part are rotatable relative to the cylinder.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: May 12, 2015
    Assignee: Concentric Birmingham Limited
    Inventors: Paul David Shepherd, Magnus Cooper
  • Publication number: 20150121948
    Abstract: Provided is a pump that includes an annular molded stator having a substrate mounted with a Hall element and that includes a rotor having an annular rotor unit rotatably housed in a cup-shaped partition component, with one end thereof in an axial direction facing the Hall element and the other end thereof in the axial direction provided with an impeller attachment unit. The rotor unit includes a resin magnet, a sleeve bearing, and a resin portion. The resin magnet includes a rotor-position detecting magnetic-pole portion protruding axially with a predetermined height in an annular shape having a predetermined width in a radial direction on an outer periphery of an end face opposite to the Hall element. The rotor-position detecting magnetic-pole portion includes a plurality of arc-shaped notches on the same circumference on an inner diameter side thereof.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 7, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuto Urabe, Hiroki Aso, Kazunori Sakanobe, Mineo Yamamoto, Hiroyuki Ishii, Junichiro Oya
  • Publication number: 20150125324
    Abstract: The present invention concerns a rotary compressor for compressing a gaseous medium, comprising an impeller (2), a drive unit (3) and a magnetic coupling (4) comprising a rotating inner rotor (41), a rotating outer rotor (42) and a can (43), wherein the inner rotor (41) is connected to the impeller (2), wherein the impeller (2) comprises a continuous solid portion (25), wherein a first row (21) and a second row (22) of blades (23) are provided at the outer circumference of the solid portion (25) of the impeller, the first and second row of blades being separated by a circumferential middle wall (20), and wherein the blades (23) of the first row (21) are offset in circumferential direction relative to the blades (23) of the second row (22).
    Type: Application
    Filed: October 18, 2012
    Publication date: May 7, 2015
    Applicant: EAGLEBURGMANN GERMANY GMBH & CO. KG
    Inventors: Timothy D. Sanford, Garrett Landry, Stephen Mccurdy, Ron Mcculloch, Glenn Schmidt, Michael Sattler, Norbert Gentz, Dieter Pfeil
  • Patent number: 9022751
    Abstract: An impeller includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion, a peripheral portion, and first and second surfaces. The first surface faces away from the second surface in a first direction, and the second surface faces away from the first surface in a second direction. The metal base plate is flat between the shaft-coupling portion and the peripheral portion. The first surface has a permanent magnet. The shaft has a fixing end coupled with the shaft-coupling portion, as well as a free end extending axially in the first direction. Each plastic blade has a coupling portion coupled with the peripheral portion, as well as an air-driving portion axially extending in the second direction. The impeller may be rotatably coupled with a driving module. The driving module is installed in a fan frame to form an advection fan.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 5, 2015
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Yuan-Jie Zheng, Chih-Hao Chung, Tso-Kuo Yin
  • Publication number: 20150118081
    Abstract: An integrated fan blade and a fan having the same are provided. The fan includes a stator (1) and a fan blade (2); the stator (1) is provided with a stator pivoting member (10) and disposed on and electrically connected to a circuit board (11); the fan blade (2) includes a blade wheel (20), a fan blade pivoting member (21) formed at the center of the blade wheel (20) and axially extended; and a plurality of blade pieces (22) annularly formed at the outer periphery of the blade wheel (20), and the fan blade pivoting member (21) is pivoted with the stator pivoting member (10), wherein the fan blade (2) is formed with a magnetic material area and formed through an integrally forming means. With the fan blade (2) being integrally formed, the fan operating property can be effectively improved.
    Type: Application
    Filed: September 5, 2014
    Publication date: April 30, 2015
    Inventors: SHUI-FA TSAI, SHIH-WEI HUANG
  • Publication number: 20150110653
    Abstract: A water pump includes: a lower casing; a shaft fixed to the center of the lower casing; a stator disposed in the lower casing; an outer rotor that is arranged at a predetermined gap to the outer circumferential surface of the stator and is rotatably supported on the fixed shaft; an upper casing that is sealably mounted on an upper side of the lower casing in which an inlet and an outlet are formed; an impeller that is disposed in the upper casing and that is rotatably supported on the fixed shaft; and a power transmission unit that is installed between the impeller and the rotor and transmits the rotational force of the rotor to the impeller by a magnetic force, to prevent water from being introduced into the lower casing, and to allow the fixed shaft to rotatably support the rotor, as well as to rotatably support the impeller.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Inventor: Byung Soo KIM
  • Publication number: 20150110652
    Abstract: A magnetic-drive coupling pump configuration including an attachment/detachment mechanism allowing simple and reliable positioning and fixation is provided. Thrust-direction positioning and radial-direction positioning are achieved, respectively, by surface contact of a convex portion of a pump unit (10) inserted up to a predetermined position in a concave portion (31) of a drive motor unit (30), and contact between an outer circumferential surface of the convex portion (11) and an inner circumferential surface of the concave portion (31).
    Type: Application
    Filed: December 15, 2014
    Publication date: April 23, 2015
    Inventors: Hideo HOSHI, Shogo NAKASHIMA, Tatsuya HIDAKA, Yasuharu YAMAMOTO, Takeshi OKUBO
  • Publication number: 20150104338
    Abstract: The invention relates to an electromagnetic pump comprising precisely one coil, wherein the one coil has a longitudinal axis, a ferromagnetic first core section at least partially arranged in the one coil, a ferromagnetic second core section at least partially arranged in the one coil, and a ferromagnetic armature, wherein a primary air gap is arranged between the armature and the first core section, wherein a radial secondary air gap is arranged between an insertion section of the armature and a receiving section of the second core section facing the longitudinal axis, wherein the ferromagnetic armature has a truncated cone-shaped contour narrowing in the stroke direction in a front section facing the first core section, wherein a magnetic force between the armature and the first core section is greater in a closing process of the first air gap; than a magnetic force between the armature and the second core section.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Axel Mueller, Michael Mueller, Olaf Ohligschlaeger, Robert Wellnitz
  • Publication number: 20150093270
    Abstract: An integrated fluid management system is provided with capability to deliver precise flow rate and fluid dosing capability over a wide range of operator set parameters. A magnetically actuated pump head is low cost, affords simple installation, and is potentially disposable. Multiple pump heads may be docked to a single drive module or control module to provide concurrent metering of multiple fluids and to maintain precise volume ratio of the multiple fluids to one another. The magnetic pump head may be integrated with radio frequency Identification devices (RFID) and Hall Effect Sensors to provide customized control and fail safe operation. A pressure pulse reducing apparatus improves pump delivery accuracy and may employ a sensor to monitor pump operation and send an error message to indicate a malfunction has occurred.
    Type: Application
    Filed: September 6, 2012
    Publication date: April 2, 2015
    Inventor: Brian Carter Jones
  • Patent number: 8985969
    Abstract: A magnetic-drive coupling pump configuration including an attachment/detachment mechanism allowing simple and reliable positioning and fixation is provided. Thrust-direction positioning and radial-direction positioning are achieved, respectively, by surface contact of a convex portion of a pump unit (10) inserted up to a predetermined position in a concave portion (31) of a drive motor unit (30), and contact between an outer circumferential surface of the convex portion (11) and an inner circumferential surface of the concave portion (31).
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hideo Hoshi, Shogo Nakashima, Tatsuya Hidaka, Takeshi Okubo, Youko Yamamoto