Pump Within Armature Patents (Class 417/356)
  • Patent number: 10781828
    Abstract: A rotary assembly for a centrifugal pump includes a housing, an impeller, a first opening formed in one of the housing or the impeller, a first bushing disposed in the first opening, and a first shaft projection projecting axially from one of the housing or the impeller. The first bushing extends annularly around a central opening thereof and is formed from an elastomeric material. The first shaft projection is received within the central opening of the first bushing. One of the first shaft projection or the first bushing is configured to rotate relative to the other of the first shaft projection or the first bushing during operation of the centrifugal pump.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: September 22, 2020
    Assignee: HANON SYSTEMS
    Inventors: Brian Graichen, David Crowther, Jean-Claude Cadoret
  • Patent number: 10724534
    Abstract: A blood pump includes a housing and a rotor within the housing configured to rotate along an axis. The rotor may include a hub, the hub having regions with blades and regions without blades. The regions without blades may have a constant outer diameter and may extend along at least one fourth the length of the hub. The regions with blades may have an increasing outer diameter. Blades may be disposed on a downstream end region of the hub and extend downstream of the hub. Blades may begin approximately halfway along the axial length of a motor stator located about a hub and extend downstream of the motor stator. Blades may have portions that produce axial fluid flow and radial fluid flow with improved flow characteristics.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 28, 2020
    Assignee: TC1 LLC
    Inventors: Yi-Ren Woo, Onur Dur, Steven H. Reichenbach
  • Patent number: 10697463
    Abstract: A jet propulsion device includes an impeller housing, an impeller, a sleeve, a first ring-shaped elastic body, and a second ring-shaped elastic body. The first ring-shaped elastic body is disposed between the impeller housing and the sleeve, and is located between a first end and a middle of the sleeve in an axial direction of the sleeve. The second ring-shaped elastic body is disposed between the impeller housing and the sleeve, and is located between a second end and the middle of the sleeve in the axial direction of the sleeve.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 30, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Atsushi Morie, Mitsuyoshi Nakamura, Minoru Sato
  • Patent number: 10605492
    Abstract: A refrigeration cycle device includes at least a condenser, an expansion valve, an evaporator and a plurality of compressors, a sealed casing of each of the compressors is disposed with a rotary compression mechanism part in communication with a low-pressure path and a motor part configured to drive the compression mechanism part, the low-pressure path is in communication with the evaporator, each of the compressors is further provided with an oil storage cavity, and a gas discharge path of at least one compressor is connected with the sealed casing of another compressor.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: March 31, 2020
    Assignee: Guangdong Meizhi Compressor Co., Ltd.
    Inventors: Masao Ozu, Weimin Xiang, Jijiang Yu, Hong Guo, Cheng Zhang, Ziqiang Liang, Ling Wang, Liang Zhong, Lili Yan
  • Patent number: 10549019
    Abstract: A blood pump casing including a unitary body. The unitary body defines an inlet chamber extending along a first axis and having a first radius perpendicular to the first axis. A transition chamber is connected to the inlet chamber and has a wall extending in a circumferential direction around the first axis, the wall has a major radius and a minor radius from the first axis, the major radius being greater than the first radius. A post extends from the transition chamber into the inlet chamber along the first axis, the post tapers in the direction around the first axis toward the inlet chamber. An outlet is connected to the transition chamber and extends along a second axis transverse to the first axis.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 4, 2020
    Assignee: HeartWare, Inc.
    Inventors: Charles R. Shambaugh, Mustafa Ertan Taskin
  • Patent number: 10480506
    Abstract: A conical screw compressor or pump comprises an inner element configured to rotate around a first axis and an outer element configured to rotate around a second axis. An outer surface of the inner element and an inner surface of the outer element comprise cooperating grooves and teeth that intermesh on rotation. The first axis and the second axis are each stationary and the first axis is inclined relative to the second axis. The inner element and the outer element are configured to be, in operation, synchronously rotated, thereby to reduce or eliminate force exerted by the inner element on the outer element or vice versa.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: November 19, 2019
    Assignee: Vert Rotors UK Limited
    Inventors: Oleg Dmitriev, Evgeniy Tabota
  • Patent number: 10447104
    Abstract: A spindle structure capable of accelerating the flow of a fluid in through holes of a rotor. The spindle structure includes a rotatable rotation part. The rotation part includes a tool holding part provided at an axial direction one end of the rotation part and through holes that penetrate the rotation part and open at the end in the axial direction. Further the spindle structure includes a vane provided in the through holes. When the rotation part rotates, the vane rotates with the rotation part to allow a fluid in the interior of the through holes to flow toward the end in the axial direction.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: October 15, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yohei Kamiya
  • Patent number: 9943630
    Abstract: A rotor for an axial-flow blood pump has blades projecting outwardly from a hub and channels between the blades. The blades incorporate hydrodynamic bearing surfaces capable of suspending the rotor during operation. The rotor has a configuration which provides superior pumping action and reduced shear of blood passing through the pump. The forwardly facing pressure surfaces of the blades may include outflow corner surface at their downstream ends. The outflow corner surfaces desirably slope rearwardly and intersect the rearwardly-facing suction surfaces of the blades at outflow ends of the blades.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 17, 2018
    Assignee: HeartWare, Inc.
    Inventor: Mustafa Ertan Taskin
  • Patent number: 9901666
    Abstract: Methods and apparatus for estimating flow rate in a blood circulation assist system employing impeller eccentricity. A method includes magnetically rotating an impeller within a blood flow channel of a blood pump. The impeller is levitated within the blood flow channel transverse to the impeller axis of rotation. A rotational speed for the impeller is determined. At least one impeller transverse position parameter is determined. The at least one impeller transverse position parameter is based on at least one of (1) an amount of a bearing current that is used to levitate the impeller transverse to the impeller axis of rotation, and (2) a position of the impeller within the blood flow channel transverse to the impeller axis of rotation. A flow rate of blood pumped by the blood pump is estimated based on the impeller rotational speed and the at least one impeller transverse position parameter.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 27, 2018
    Assignee: TC1 LLC
    Inventor: Christopher J. Cotter
  • Patent number: 9771801
    Abstract: The invention relates to a rotor for a pump, having at least one blade, the rotor being able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, the rotor being able to be deformed reversibly elastically in the radial direction between a first, radially compressed state and a second, radially expanded state which the rotor adopts without the effect of external forces, and a third state of the rotor being provided in which, in pumping operation under fluid loading, the rotor is deformed from the first state to beyond the second state.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: September 26, 2017
    Assignee: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventors: Joerg Schumacher, Mario Scheckel
  • Patent number: 9707327
    Abstract: An implantable heart assist system, includes a pumping chamber formed of a flexible material and being adapted to be placed in fluid connection with the aorta and a pump system comprising a first rigid member and a spaced apart second rigid member so that at least a portion of the pumping chamber may be positioned therebetween, a drive system comprising a motor. The motor is adapted to cause the second rigid member to move toward the first rigid member to compress the pumping chamber or away from the first rigid member to expand the pumping chamber. A controller is in operative connection with the drive system and controlling the motor.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 18, 2017
    Assignee: VASCOR, INC.
    Inventors: Marlin S. Heilman, Charles R. Kohler, David M. Reilly, Jon D. Wagner, Kurt D. Badstibner, Richard A. Bates, Jonathan R. Speicher, Joseph F. Russial
  • Patent number: 9577494
    Abstract: A motor includes a casing having a cavity, a stator configured to be attached to an inside of the cavity, an elastic cone configured to be attached to a first end of the casing, a rigid cone configured to be attached to a second end of the casing that is opposite to the first end, a non-metallic part configured to be attached to the elastic cone and the rigid cone, and a rotor provided inside the cavity and configured to rotate inside the stator. The casing, the elastic cone, the rigid cone, and the non-metallic part form a hermetic enclosure in which the entire stator is enclosed and the hermetic enclosure is configured to hold a cooling fluid that cools the stator and also to prevent the cooling fluid to reach the rotor.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: February 21, 2017
    Assignee: Nuovo Pignone SPA
    Inventors: Luciano Mei, Massimo Pinzauti
  • Patent number: 9561313
    Abstract: A rotor for an axial-flow blood pump has blades projecting outwardly from a hub and channels between the blades. The blades incorporate hydrodynamic bearing surfaces capable of suspending the rotor during operation. The rotor has a configuration which provides superior pumping action and reduced shear of blood passing through the pump. The forwardly facing pressure surfaces of the blades may include outflow corner surface at their downstream ends. The outflow corner surfaces desirably slope rearwardly and intersect the rearwardly-facing suction surfaces of the blades at outflow ends of the blades.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: February 7, 2017
    Assignee: HeartWare, Inc.
    Inventor: Mustafa Ertan Taskin
  • Patent number: 9410549
    Abstract: In this centrifugal blood pump apparatus, one permanent magnet is provided in one surface of an impeller, a second permanent magnet is provided in an inner wall of a blood chamber, a third permanent magnet is provided in the other surface of the impeller, and a fourth permanent magnet and a rotor for driving the impeller to rotate are provided, with an diaphragm being interposed. An amount of change in attractive force between the first permanent magnet and the second permanent magnet and an amount of change in attractive force between the third and fourth permanent magnets when the impeller is eccentric are made substantially equal to each other. Therefore, a levitation position of the impeller can always be maintained at a substantially central position in a housing.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: August 9, 2016
    Assignee: Thoratec Corporation
    Inventors: Takayoshi Ozaki, Hiroyuki Yamada, Kenichi Suzuki, Ken Sugiura
  • Patent number: 9397537
    Abstract: A cooling assembly for the stator of an electric machine provided with coils including heads is described herein. The cooling assembly includes a generally cylindrical cooling body provided with opposite longitudinal ends and at least one head-cooling element mounted to one of the longitudinal end of the body; the head-cooling element being so configured as to enclose heads of the coils and to receive heat conducting material therein.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 19, 2016
    Assignee: TM4 INC.
    Inventors: Stéphane Poulin, Bruno Carpentier, Benjamin Martineau
  • Patent number: 9370613
    Abstract: An axial-flow blood pump has a rotatable impeller assembly rotatable about an axis and itself having a radially projecting blade and permanent magnets, A stationary stator assembly has stator windings interacting with the permanent magnets and a bearing system supporting the rotatable impeller assembly for rotation about the axis relative to the stator assembly. A stent implantable into a blood vessel is connected to ends of supports for coaxially mounting the stator assembly carrying the impeller assembly in the stent.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: June 21, 2016
    Assignee: RHEINISCH-WESTFAELISCHE-TECHNISCHE HOCHSCHULE AACHEN
    Inventors: Po-Lin Hsu, Ulrich Steinseifer, Jack Parker, Ruediger Autschbach
  • Patent number: 9308304
    Abstract: A blood pump includes a hollow body in which an impeller with blading is provided for producing an axial propulsion of blood along the impeller. An at least partly actively stabilized magnetic bearing device is provided wherein the impeller may be set into a rotation about a rotation axis of the impeller, with a motor stator. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 12, 2016
    Assignee: Berlin Heart GmbH
    Inventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt, Leonid Choub
  • Patent number: 9180235
    Abstract: The present invention relates to a heart pump apparatus comprising a turbine pump for assisting the heart of a human patient. The invention is based on the realization that a turbine without a center axis would improve the capacity of the heart help pump apparatus. The present invention also relates to a turbine pump system for assisting the heart of a human patient. The present invention also relates to operation methods and methods for surgically placing a rotating body of a turbine pump and a stator of a turbine pump in a patient.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: November 10, 2015
    Inventor: Peter Forsell
  • Patent number: 9181947
    Abstract: A compressor is provided in which a rotary member suspended on a stationary member is rotated to compress a refrigerant. As the rotary member is suspended on a first stationary member and rotatably supported on a second stationary member spaced apart from the first stationary member, components can be easily centered and assembled with structural stability. In addition, oil stored in a hermetic container is supplied to a lubrication passage provided between the rotary member and the stationary member. This reduces friction loss between the components and achieves operational reliability. Moreover, the oil is easily introduced into a vane mounting hole in which a vane is linearly reciprocated. This reduces friction and abrasion of the vane and improves the operational reliability.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 10, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Kang-Wook Lee, Jin-Ung Shin, Geun-Hyung Lee, Seoung-Min Kang
  • Patent number: 9163679
    Abstract: A magnetic powder brake device of a motor used for oil production is provided. The motor has a turning shaft and an oil extraction pump, and is coupled with a magnetic powder brake. The magnetic powder brake is connected with an electromagnetic switch and a battery. The electromagnetic switch is provided with a power sensor and connected with a power source. When the motor is turned under a normal power supply, the electromagnetic switch is in a disconnection state and the battery doesn't supply power to the magnetic powder brake, so the turning shaft is not braked by the magnetic powder brake. In case of an unexpected power failure, the electromagnetic switch is in a connection state, the battery supplies power to the magnetic powder brake, and the magnetic powder brake is activated to brake the turning shaft, preventing the turning shaft from turning reversely.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: October 20, 2015
    Inventor: Yen-Hong Wong
  • Patent number: 9162019
    Abstract: A pump includes a housing, a stator supported in the housing, and a rotor assembly including a rotor supported in the housing for rotation relative to the stator about an axis. The stator includes a stator core, a first lamination wound around an axial portion of the stator core, and a second lamination wound around a second axial portion of the stator core. The first and second laminations are spaced from each other along the length of the stator core. The rotor includes a rotor core, a first magnet assembly that extends around an axial portion of the rotor core, and a second magnet assembly that extends around a second axial portion of the rotor core. The first and second magnet assemblies are spaced from each other along the length of the rotor.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: October 20, 2015
    Assignee: The Cleveland Clinic Foundation
    Inventors: David Horvath, Leonard A. R. Golding, Alex Massiello, Barry Kuban
  • Patent number: 9039390
    Abstract: A compressor is provided in which a rotary member suspended on a stationary member is rotated to compress a refrigerant. The rotary member is suspended on a first stationary member and rotatably supported on a second stationary member spaced apart from the first stationary member, to thereby achieve structural stability, improve operation reliability, and reduce vibration. The components can be easily centered and assembled with an excellent assembly property. In addition, a mounting structure of an elastically-supported vane is improved to ensure lubrication performance and operation reliability. Moreover, a mounting structure of a roller-incorporated vane is improved to reduce vibration and prevent refrigerant leakage, which leads to high compression efficiency.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: May 26, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Kang-Wook Lee, Jang-Woo Lee, Bum-Dong Sa, Jin-Ung Shin
  • Patent number: 8915725
    Abstract: A compressor is provided having an accumulator that forms an accumulating chamber in an internal space of a shell of the compressor, reducing a size and simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. A center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration caused by the accumulator. An eccentric portion may be provided at the stationary shaft to secure a spacious compression space. Both ends of the stationary shaft may be supported by a frame to reduce vibration. A rotor and a cylinder may be coupled with a bearing to reduce cylinder deformation. An installation area of the compressor may be minimized to enhance design flexibility of an outdoor device employing the compressor and minimize interference with other components.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: December 23, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kangwook Lee, Bumdong Sa
  • Patent number: 8899947
    Abstract: A compressor is provided having an accumulator that forms an accumulating chamber in an internal space of a shell of the compressor, reducing a size of the compressor and simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. Further, a center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. Furthermore, both ends of the stationary shaft may be supported by a frame to reduce compressor vibration without using a separate bearing. An installation area of the compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device employing the compressor and minimize interference with other components, thereby facilitating installation of the outdoor device.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: December 2, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kangwook Lee, Bumdong Sa
  • Patent number: 8894388
    Abstract: A rotary compressor is provided that includes an electric motor that supplies electric power and a compression mechanism that compresses a refrigerant while first and second rotary members rotate upon receipt of the electric power from the electric motor. More particularly, the compressor has a compact design by forming a compression space within the compressor by a rotor of the electric motor that drives the compressor, maximizes compression efficiency by minimizing friction loss between rotating elements within the compressor, and has a structure that minimizes leakage of the refrigerant within the compression space.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: November 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kangwook Lee, Jin-Ung Shin, Yongchol Kwon, Geun-Hyoung Lee
  • Patent number: 8876644
    Abstract: The pump unit has a pump and a hybrid drive. The pump comprises a pump housing and a pump shaft. The hybrid drive comprises an electric motor and a driveshaft connection to a driveshaft. The electric motor and the driveshaft connection are each in driving mechanical functional connection with the pump shaft by way of a planetary gearset for driving the pump shaft. A stator of the electric motor is at least partially integrated in the pump housing. A rotor of the electric motor is mechanically connected fixed to a sun gear of the planetary gearset. The driveshaft connection is mechanically connected fixed to a ring gear of the planetary gearset. The pump shaft is mechanically connected fixed to a planetary carrier of the planetary gearset.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: November 4, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Gernot Riegert, Raphael Zwick, Mario Harscher
  • Patent number: 8876494
    Abstract: A compressor is provided that includes a stator, a cylinder type rotor rotated within the stator by a rotating electromagnetic field of the stator and that defines a compression chamber inside, a roller that rotates within the compression chamber of the cylinder type rotor by a rotational force transferred from the rotor and compresses a refrigerant during rotation, a vane that divides the compression chamber into a suction region, into which the refrigerant is sucked, and a compression region, in which the refrigerant is compressed and discharged from, and transfers the rotational force from the cylinder type rotor to the roller, an axis of rotation that integrally extends from the roller in an axial direction, and a suction passage, through which the refrigerant is sucked into the compression chamber, through the axis of rotation and the roller.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: November 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kangwook Lee, Jin-Ung Shin, Yongchol Kwon, Geun-Hyoung Lee
  • Patent number: 8858205
    Abstract: A compressor is provided in which a rotary member suspended on a stationary member is rotated to compress a refrigerant. The rotary member is suspended on a first stationary member and rotatably supported on a second stationary member spaced apart from the first stationary member, which achieves the structural stability and allows the components to be easily centered and assembled. A refrigerant suction passage and a refrigerant discharge passage are such that the refrigerant may be sucked and discharged without a valve.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: October 14, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kang-Wook Lee, Bum-Dong Sa
  • Patent number: 8851942
    Abstract: A thrust generating apparatus which is positioned under water and configured to generate a thrust by ejecting water includes a duct-shaped stator provided with a plurality of armature coils, and a plurality of ring-shaped rotors which are arranged radially inward of the stator and provided with permanent magnets respectively corresponding to the plurality of armature coils, wherein the plurality of rotors are arranged in series in a rotational axis direction thereof and each of the rotors has a propeller vane protruding radially inward. A thrust generating apparatus is capable of outputting a high driving power without increasing a propeller diameter.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: October 7, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Keiichi Yoshikawa, Hiromitsu Kiyose, Tetsuro Ikebuchi
  • Patent number: 8840378
    Abstract: A thrust generating apparatus is configured to generate thrust by ejecting water. The thrust generating apparatus includes: a first water lubricated bearing opposed to one side surface and outer peripheral surface of rotor main body and supports a thrust and radial load; a second water lubricated bearing opposed to the other side surface and outer peripheral surface of rotor main body and supports the thrust and radial load; a first water intake port that opens toward a portion of a channel; a second water intake port that opens toward another portion of the channel; a first water conveyance tube through which the water having flowed through the first water intake port is guided to the second water lubricated bearing; and a second water conveyance tube through which the water having flowed through the second water intake port is guided to the first water lubricated bearing.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: September 23, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masahito Tanaka, Hiromitsu Kiyose, Tetsuro Ikebuchi, Kentaro Nakagawa
  • Patent number: 8814617
    Abstract: In a thruster for a vessel including a hull, the thruster comprises at least one tunnel element and at least one thruster unit. The tunnel element includes at least a part of a through tunnel in the hull when arranged in the hull. The at least one thruster unit and the at least one tunnel element include cooperating fastening devices for detachably fixing the at least one thruster unit in the at least one tunnel element such that the at least one thruster unit is configured to be passed through the tunnel and mounted to the at least one tunnel element, or demounted from the at least one tunnel element and passed out of the tunnel. A method for mounting and demounting a thruster in a tunnel element includes a tunnel element arranged in the vessel of a hull.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: August 26, 2014
    Assignee: Rolls-Royce Marine AS
    Inventors: Ole Arnt Marholm, Gunnar Johnsen, Dag Brandal
  • Patent number: 8784084
    Abstract: A cam ring fluid machine, a rotary cam ring fluid machine has a casing, a flange in the casing, a stator in the casing, a rotor cam ring in the stator, a fixed axis in the rotor cam ring, and a vane in the vane groove of the fixed axis. A fluid chamber is formed with the inner circumferential surface of the rotor cam ring, the outer circumferential surface of the fixed axis, the vane, and the flange. When the rotor cam ring rotates, the volume of the fluid chamber increases or decreases.
    Type: Grant
    Filed: November 24, 2012
    Date of Patent: July 22, 2014
    Assignees: RichStone Limited, RichStone Limited
    Inventors: KwangSeon Hwang, BooSeok Hwang
  • Patent number: 8708668
    Abstract: A thrust generating apparatus is provided under water and configured to generate thrust by ejecting the water. A rotor main body includes: a first member including a side surface and outer peripheral surface which are opposed to a first water lubricated bearing; a second member including a side surface and outer peripheral surface which are opposed to a second water lubricated bearing; and a third member including a supporting surface contacting an inner peripheral surface of a rotor core. The first to third members are fixed to one another so that each member is detachable.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 29, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masahito Tanaka, Hiromitsu Kiyose, Tetsuro Ikebuchi, Kentaro Nakagawa
  • Patent number: 8678781
    Abstract: A turbo type centrifugal pump is provided in which an angular oscillator is angularly oscillated so that fluid in a radial through hole receives centrifugal force. The angular oscillator is used in combination with a resonance oscillation motor that generates angular oscillation. The resonance oscillation motor is incorporated in the pump so that the pump structure and the drive mechanism are integrated. This reduces the size of the pump. Since the angular oscillation is a reciprocating rotation within an oscillation range less than 360°, a suction pipe can be connected to the radial through hole used in the angular oscillation. This eliminates the necessity for providing a shielding structure.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 25, 2014
    Assignee: Imagina Holdings Co., Ltd.
    Inventors: Takahito Imagawa, Atsunori Miyamura
  • Patent number: 8668473
    Abstract: An axial-flow blood pump for pumping blood includes a substantially cylindrical outer enclosure. A tubular housing concentric with and located within the outer enclosure has at one end an inlet and at an opposite end an outlet. A motor stator is concentric with and located between the outer enclosure and the tubular housing. An impeller is concentric with and located within the tubular housing. The impeller is suspended in operation by a combination of passive magnetic forces between magnets within the impeller or magnetized regions of the impeller and the motor stator and hydrodynamic thrust forces generated as blood flows between the tubular housing and a plurality of hydrodynamic thrust bearing surfaces located on the impeller. A volute may be in fluid-tight connection with the outlet of the tubular housing for receiving blood in the axial direction and directing blood in a direction normal to the axial direction.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 11, 2014
    Assignee: HeartWare, Inc.
    Inventors: Jeffrey A. LaRose, Charles R. Shambaugh, Jr., Kartikeyan Trichi, Richard A. Marquis, Daniel G. White
  • Patent number: 8663738
    Abstract: Disclosed herein are an armature for fuel pumps and a manufacturing method thereof, in which a polymer coating film is formed on an armature core such that the armature has corrosion resistance to an alcohol fuel and to a highly corrosive fuel.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 4, 2014
    Assignee: Coavis
    Inventors: Kisang Moon, Seonghwan Moon
  • Patent number: 8636480
    Abstract: A compressor is provided that includes a hermetically sealed container; a stator fixedly installed within the hermetically sealed container; a first rotary member that rotates, within the stator, around a first rotary shaft that extends concentrically with a center of the stator by a rotating electromagnetic field of the stator, and including first and second covers fixed to upper and lower parts thereof, respectively; a second rotary member that compresses a refrigerant in a compression space formed between the first and second rotary members while rotating, within the first rotary member, around a second rotary shaft; a vane that transmits the rotational force to the second rotary member from the first rotary member, and partitions the compression space into suction and compression regions; and first and second bearings fixed inside of the hermetically sealed container that rotatably support the first and second rotary members in an axial direction.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kangwook Lee, Jin-Ung Shin, Yongchol Kwon, Geun-Hyoung Lee
  • Publication number: 20130183171
    Abstract: A cam ring fluid machine, a rotary cam ring fluid machine has a casing, a flange in the casing, a stator in the casing, a rotor cam ring in the stator, a fixed axis in the rotor cam ring, and a vane in the vane groove of the fixed axis. A fluid chamber is formed with the inner circumferential surface of the rotor cam ring, the outer circumferential surface of the fixed axis, the vane, and the flange. When the rotor cam ring rotates, the volume of the fluid chamber increases or decreases.
    Type: Application
    Filed: November 24, 2012
    Publication date: July 18, 2013
    Applicants: RICHSTONE LIMITED, RICHSTONE LIMITED
    Inventors: RichStone Limited, RichStone Limited
  • Publication number: 20130175891
    Abstract: Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core of which a shaft is fixedly coupled to a central portion and a plurality of rotor poles protruding from the rotor core; a stator part including a stator yoke rotatably receiving the rotor part therein and a plurality of stator salient poles protruding from the stator yoke so as to face the rotor poles; and auxiliary rotor poles coupled to outer portions of the rotor poles to rotate integrally with the rotor part.
    Type: Application
    Filed: December 13, 2012
    Publication date: July 11, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: SAMSUNG ELECTRO-MECHANICS CO., LTD.
  • Publication number: 20130149175
    Abstract: An involute jet pump includes a spiral blade, a permanent magnet cylinder rotor having a plurality of magnetic poles and a stator armature. The rotor is a hollow ring body and fastened at an outside of the spiral blade. Magnetic fields of adjoined magnetic poles are different. The stator armature is disposed at an outside of the rotor. The stator coil has rotating magnetic field after electrifying, and the magnetic field of the stator can be electrically modulated. The rotor drives the spiral blade for rotating due to modulated rotating magnetic field of the stator. The rotor embedded with the spiral blade is placed inside the stator armature. The whole volume of the involute jet pump can be effectively reduced. A magnetic field induction generated between the rotor and the stator drives the rotor embedded with the spiral blade for rotating.
    Type: Application
    Filed: November 13, 2012
    Publication date: June 13, 2013
    Inventor: Chun-Chao Wang
  • Patent number: 8398378
    Abstract: A fan module assembly includes at least one a rotatable fan (38) having blades (39) with tips of blades being joined by an annular fan band (42). An electrically conductive squirrel cage (46) is associated with the fan band to rotate therewith. Flux receiving structure (48) is associated with the fan band. A shroud (40) has a shaft (54) with the fan being associated with the shaft so as to rotate about the shaft and with respect to the shroud. Control structure (52) is mounted stationary with respect to the shroud generally adjacent to a portion of the fan band. The control structure is constructed and arranged to generate a changing magnetic field, generally at the radius of the fan band, which interacts with the flux receiving structure and the squirrel cage to cause the fan to be driven by tangential force.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: March 19, 2013
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg
    Inventors: Attila Simofi-Ilyes, Andrew Lakerdas, Paul Stephen McLennan
  • Patent number: 8376720
    Abstract: A gerotor pump includes an inner ring and an outer ring. The inner ring is rotateable about an axis, where the inner ring has an outer diameter contact surface. The outer ring has an inner diameter contact surface that defines a central opening. The central opening receives the inner ring, and a portion of the inner diameter contact surface engages a portion of the outer diameter contact surface of the inner ring. A motor including a rotor and a stator that surrounds the rotor is included. The rotor surrounds the outer ring and exerts a driving force on the outer ring such that the outer ring rotates about the inner ring. The inner diameter contact surface of the outer ring and the outer diameter contact surface of the inner ring create a plurality of chambers. Rotation between the inner ring and the outer ring expand and contract the chambers to expel fluid from the gerotor pump.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: February 19, 2013
    Assignee: GM Global Technology Operations LLC
    Inventor: Martin E. Rosalik, Jr.
  • Patent number: 8366411
    Abstract: An axial flow pump (10) is presented which includes a housing (1) with an inlet (2) and outlet (3) and a magnetically active rotor (5) in the housing which is provided with a passage (6) in the interior and with at least one spiral-shaped vane (7) in the passage, wherein the pitch of the vane (7) varies in the axial direction. The axial flow pump (10) furthermore includes an electromagnetic drive (4, 8) with a stator (8) which is arranged at the housing and cooperates with a magnetically active rotor.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 5, 2013
    Inventors: Doan Baykut, Goekhan Baykut, Felix Hirt
  • Patent number: 8257062
    Abstract: A thrust piston pump apparatus PM1 can be driven by an electric motor 110 and is provided with a pump housing 120, a reciprocating piston 130 assembled into the pump housing 120, and a motion conversion mechanism 40 provided between the reciprocating piston 130 and a rotor 113 of the electric motor 110. In the electric motor 110, a tubular rotor 113 is disposed in a stator (magnet 112), and a cylinder portion 121A of the pump housing 120 is coaxially housed in the rotor 113. The reciprocating piston 130 is assembled into the cylinder portion 121A of the pump housing 120 in such a manner as to be able to reciprocate along a cylinder axis. The motion conversion mechanism 140 converts a rotary motion of the rotor 113 of the electric motor 110 in relation to the pump housing 120 and the reciprocating piston 130 to a reciprocating motion of the reciprocating piston 130.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: September 4, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Isono
  • Publication number: 20120148424
    Abstract: A rim driven electrical machine for interaction with a flow of water, comprising: a rotor mounted within a housing, the rotor including at least one circumferential conductor and a central passageway, the central passageway for receiving at least one blade arrangement for rotational interaction with a fluid within the central passageway, and; a stator supported by the housing and arranged circumferentially around the rotor, the stator including windings for providing a travelling electromagnetic wave for interaction with the at least one circumferential electrical conductor of the rotor, wherein the stator extends only partially around the circumference of the rotor so as to have a first end and a second end separated by an arcuate angle.
    Type: Application
    Filed: November 23, 2011
    Publication date: June 14, 2012
    Applicant: ROLLS-ROYCE PLC
    Inventors: Paul D. HOPEWELL, Alexander C. SMITH, Paul TUOHY
  • Patent number: 8167589
    Abstract: In order to optimize the clearances between both end surfaces of a sleeve 5 and each of the end surfaces of the fixed bodies 3 and 5, respectively, magnetic forces of repulsion being caused by each of the permanent magnets 3a, 5b, 5c and 8a is adjusted. At this time, by adjusting each of the distances between the permanent magnets 3a, 5b, 5c, 8a, respectively, by adjusting the quantity of the adjustment rings 9, the magnetic force of repulsion being caused by each of the permanent magnets 3a, 5b, 5c and 8a is adjusted.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: May 1, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsuya Hidaka, Yohei Kakiuchi, Takeshi Okubo, Toshiyuki Osada
  • Patent number: 8113794
    Abstract: The invention relates to a rotor pump having an internally toothed outer ring and an externally toothed inner ring which is mounted therein and intermeshes therewith, wherein the outer ring and the inner ring are arranged axis-parallel to one another, and the axes of the outer ring and of the inner ring are at a distance from one another, and the outer ring is connected to a hollow shaft motor with a stator which is fitted with windings, and to a rotor which is rotatably mounted therein, characterized in that the outer ring forms the rotor of the hollow shaft motor.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: February 14, 2012
    Assignee: Joma-Polytec Kunststofftechnik GmbH
    Inventors: Willi Schneider, Torsten Helle
  • Patent number: 8109743
    Abstract: An axial flow fan unit includes a first and a second axial flow fan. The first axial flow fan includes a first motor, a plurality of first lead lines connected to the first motor, a first impeller rotatable about a center axis by the first motor, and a first housing arranged to enclose the first motor and the first impeller, wherein the first housing has a first recess portion extending from an inside to an outside of the first housing. Likewise, the second axial flow fan includes a second motor, a plurality of second lead lines, a second impeller, and the second housing, wherein the second housing has a second recess portion extending from an inside to an outside of the second housing. The first and the second lead lines are led out from the first and the second housings through the first and the second recesses, respectively. Further, the first recess portion is deviated relative to or partially overlapped with the second recess portion along a circumferential direction.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: February 7, 2012
    Assignee: Nidec Corporation
    Inventors: Yusuke Yoshida, Shinya Kaneoya
  • Patent number: 8087905
    Abstract: The invention relates to a cooling apparatus for an electric component such as a CPU, a memory or power semiconductor, such as transistors or LEDs, or a processor. The cooling apparatus comprises a heatsink, an impeller that coaxially encloses the heatsink, and a drive motor for the impeller. The heatsink takes the form of a stationary hub having a base for introducing heat from the electronic component that is to be cooled, the hub widening towards the base. Cooling fins are thermally coupled to the hub, the cooling fins being given a spiral-like curve similar to the blades of the impeller. Due to the special design of the hub and the cooling fins as well as the use of a radial flux motor, a highly efficient, particularly compact cooling apparatus can be realized.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: January 3, 2012
    Assignee: Minebea Co., Ltd.
    Inventors: Hans-Joachim Wysk, Karl-Heinz Glatz
  • Patent number: 8067864
    Abstract: An electric motor for driving an inertia separator is provided, including a stator and a rotor. The stator is arranged in a stator space enclosed by a stator housing. The rotor is arranged in a rotor space concentrically with the stator with regard to an axis of rotation. A ring gap is formed radially between the rotor and the stator such that it separates the stator space from the rotor space. A housing bottom includes a nonmagnetic section extending through the ring gap. An inertia separator includes a second rotor operably connected to the rotor. A separator housing encloses a void containing the second rotor, wherein the housing bottom is arranged on the separator housing on a side facing the electric motor such that the nonmagnetic section of the housing bottom defines an opening in the rotor space that is oriented towards the void.
    Type: Grant
    Filed: October 21, 2006
    Date of Patent: November 29, 2011
    Assignee: Mahle International GmbH
    Inventor: Klaus Dr. Beetz