With Specific Motor Details Patents (Class 417/423.7)
  • Patent number: 10711793
    Abstract: A fluid pump includes a fluid pump inlet and a fluid pump outlet. A motor includes an armature and a stator such that the armature rotates about an axis. A pump section includes a pump section having a pumping element coupled to the armature such that rotation of the armature rotates the pumping element such that the pumping element pumps fluid from the fluid inlet to a pump section outlet of the pump section. A fluid passage within the fluid pump provides fluid communication from the pump section outlet to the fluid pump outlet such that the fluid passage is radially between the armature and the stator. The armature includes a surface of which faces toward the pump section and includes a plurality of recesses extending thereinto.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 14, 2020
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Francisco Romo, Daniel J. Moreno
  • Patent number: 10612550
    Abstract: An electric fuel pump includes a housing having an oil inlet and an oil outlet, an impeller, a stator unit mounted in the housing and including a stator and a starter terminal set connected to the stator, a packaging adhesive encapsulating the stator and the starter terminal set to create an oil guide passage in communication between the oil inlet and the oil outlet, and a rotor unit mounted in the housing and including a rotor rotatably mounted in the stator and a rotating shaft mounted in the rotor and connected with the impeller. When the stator unit is electrically conducted, the rotor unit drives the impeller to draw a fuel oil into the oil guide passage. When the fuel oil goes through the oil guide passage, the stator and the starter terminal set are well protected by the packaging adhesive and prohibited from contacting the fuel oil.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 7, 2020
    Assignee: TRICORE CORPORATION
    Inventor: Po-Liang Lin
  • Patent number: 10473108
    Abstract: A blower assembly includes a centrifugal fan and a motor assembly. The centrifugal fan has a plurality of axially extending impeller blades, a first axial end, and an air inlet. The air inlet is at the first axial end of the centrifugal fan. The motor assembly comprises a stator, a rotor, and an air directing surface. The air directing surface is shaped and configured to direct air drawn into the air inlet radially outwardly toward the impeller blades. The air directing surface extends generally along the rotor axis from its first end to its second end. At least a surface region of the air directing surface generally circumscribes the rotor axis and diverges radially outwardly as such surface region of the air directing surface extends away from the first end toward the second end.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: November 12, 2019
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventors: Steven W. Post, William S. Gatley, Jr.
  • Patent number: 10349809
    Abstract: A pump assembly for a dishwashing appliance includes an inner diffuser shell defining a motor housing and an outer diffuser shell spaced apart from the inner diffuser shell to define a diffusing plenum. A motor positioned within the motor housing rotates a wash pump impeller and urges a flow of wash fluid through the diffusing plenum. Within the diffusing plenum, guide vanes extend between the inner diffuser shell and the outer diffuser shell to diffuse and direct the flow of wash fluid.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 16, 2019
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: John Edward Dries, Joel Charles Boyer
  • Patent number: 10107291
    Abstract: Partitioned chambers of an electric connector, which receive connection terminals electrically connected to windings of a stator, are communicated with an outside of the electric connector through primary communication holes. The primary communication holes are formed to direct at least one of perpendicular directions, each of which is perpendicular to a corresponding one of opening planes of outside openings of the primary communication holes, toward a downside when a central axis of a fuel pump is tilted relative to a vertical direction. In this way, a foreign object, which is accumulated in any of the portioned chambers, can be outputted to the outside through the primary communication hole even when the fuel pump is tilted in any direction.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 23, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masaya Ootake, Tetsuo Hayakawa, Kiyoshi Nagata
  • Patent number: 10076056
    Abstract: A cooling fan with shapes, sizes, and placements of frame and supporting ribs tuned to reduce operational vibration and noise includes a fan frame, a supporting base, and a plurality of ribs. The fan frame includes a bottom plate and a sidewall connected to the bottom plate. The supporting base is formed at the bottom plate. The plurality of ribs extends from an outer circumferential surface of the supporting base to the sidewall. At least one of the plurality of ribs and the fan frame is asymmetrical with respect to the supporting base.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: September 11, 2018
    Assignee: CHAMP TECH OPTICAL (FOSHAN) CORPORATION
    Inventors: Yong-Kang Zhang, Yung-Ping Lin
  • Patent number: 9835158
    Abstract: Disclosed is a rotary pump including a magnetic rotor arranged in a pump housing and having a magnetic rotor plane, which rotor is operatively connected to a drive for conveying a fluid. The drive is a bearingless motor having a stator configured as a bearing stator and drive stator and having a magnetic stator plane, wherein the stator bears a drive coil and a bearing coil lying in the stator plane and/or a drive bearing coil. The rotor is magnetically contactlessly journalled within the stator, wherein an axial height (H) of the rotor is smaller than or equal to half a diameter (D) of the rotor so that the rotor is passively magnetically stabilized by reluctance forces with respect to the magnetic stator plane both against axial displacement and against a tilt from an equilibrium position.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: December 5, 2017
    Assignee: Levitronix GmbH
    Inventor: Reto Schöb
  • Patent number: 9451976
    Abstract: A medical handle comprises a drive unit and a control device or circuit for driving a medical tool. The control device or circuit comprises a control and/or regulating circuit for controlling and/or regulating the drive unit, the drive unit comprises at least one magnetic element and a sensor system for determining the alignment of the at least one magnetic element. To achieve simpler assembly and a greater resistance to the ambient conditions that prevail during sterilization in comparison with known handles, the sensor system and the control and/or regulating circuit are combined in a joint control module, and the at least one magnetic element is arranged in the medical handle in such a way that at least a part of the control module can be positioned in the immediate vicinity of the at least one magnetic element and that the sensor system is arranged in the control module in such a way that it can be positioned in the immediate vicinity of the at least one magnetic element.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 27, 2016
    Assignee: Arthrex, Inc.
    Inventors: Rainer Schneider, Rainer Schroeck, Walter Pletscher, Josef Ott
  • Patent number: 9239060
    Abstract: In one embodiment a blower comprises a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet, an impeller disposed in the case and rotatable about an axis of rotation extending between the first surface and the second surface. Portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case, and the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: January 19, 2016
    Assignee: Intel Corporation
    Inventor: Douglas Heymann
  • Patent number: 9157441
    Abstract: A centrifugal blower apparatus includes a scroll-shaped housing with first and second air inlets which open to a blower chamber that is in fluid communication with an air outlet. The blower includes a motor to drive an impeller, wherein the motor is secured to a frame that is coupled with the housing in a manner to substantially enhance aerodynamic performance of the blower.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: October 13, 2015
    Assignee: Henkel IP & Holding GmbH
    Inventors: Roger Dickinson, Robert A. Hoyt
  • Patent number: 9127688
    Abstract: A bearing cooling structure includes a metal base seat and a plastic bearing cup. The metal base seat has a raised section and an extension section. The plastic bearing cup encloses the raised section and has an inner circumference defining a bearing hole. The extension section horizontally extends from the raised section toward a center of the plastic bearing cup. The extension section has a free end and an upper surface positioned in the bearing hole. A bearing is received in the bearing hole and disposed on the extension section. A bottom face of the bearing is in contact with the upper surface of the extension section. Accordingly, the heat of the bearing can be transferred (conducted) through the extension section to the metal base seat to be dissipated. A fan with the bearing cooling structure is also disclosed.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: September 8, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventor: Chu-Hsien Chou
  • Publication number: 20150139833
    Abstract: A thin-profile cross-flow fan with air volume gain effect has a thin-profile casing, a cross-flow guide passage, a blade assembly, an auxiliary guide ring portion, an axial magnetic motor and a radial flow-through auxiliary guide portion. When the thin-profile cross-flow fan is operated, the air stream guided from the air inlet can be guided to the air outlet through the circulation space or the auxiliary guide ring portion and radial flow-through the auxiliary guide portion, thus increasing the an flux and volume of the thin-profile cross-flow fan and also improving greatly its gain effect and performance with better applicability and industrial benefits.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 21, 2015
    Applicant: FORCECON TECHNOLOGY CO., LTD.
    Inventors: Sin-Wei He, Chih-Ren Huang, Jhong-Yan Chang
  • 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
  • Patent number: 9017045
    Abstract: An electric compressor includes an inverter cover. The inverter cover has a metal plate that is arranged to cover an inverter (a circuit board). The metal plate has bolt insertion holes, through which metal bolts for fixing the inverter cover to a suction housing are passed. The head of each bolt contacts a flange portion, which is the periphery of the corresponding bolt insertion hole. The inverter cover is formed of plastic by being molded in a mold, using the metal plate as a core.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: April 28, 2015
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yusuke Kinoshita, Shingo Enami, Ken Suitou
  • Patent number: 9011115
    Abstract: A bearing assembly for use in a deepwell submersible pump, the pump and a method of pumping a geothermal fluid. The bearing assembly is constructed to include a lubricant conveying mechanism, a bearing sleeve and a multilayer bushing. The lubricant is forced between the bushing and a bearing sleeve by the lubricant conveying mechanism that cooperates with the rotation of a shaft used to connect a power-providing motor with one or more pump impellers. In this way, there exists a substantially continuous lubricant environment between the sleeve and bushing to act in a hydrodynamic fashion.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: April 21, 2015
    Assignee: Flowserve Management Company
    Inventors: Behrend Goswin Schlenhoff, Axel Helmut Tank-Langenau, Thomas Albers
  • Publication number: 20150104335
    Abstract: The internal-driven compressor having a powered compressor rotor. The internal-driven compressor includes a compressor housing including a suction port and a discharge port, an internal driver including a rotor and a stator, the rotor and the stator located within the compressor housing, the stator located radially inward of the rotor, and a powered compressor rotor including an annular body extending about a center axis, wherein the rotor is fixed to the powered compressor rotor and configured to rotate the powered compressor rotor about the center axis in response to a force imparted by the stator.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: SOLAR TURBINES INCORPORATED
    Inventor: Wolfgang Faller
  • Publication number: 20150104339
    Abstract: A fluid pump includes a hollow housing, an electric motor having an armature with a commutator, a pump section rotationally coupled to the electric motor for receiving fuel at a relatively low pressure through a fuel inlet and pressurizing the fuel to a relatively high pressure, a motor brush is in electrical contact with the commutator and including a shunt wire extending therefrom, and an end cap that closes one end of the housing and defines a high pressure chamber with the housing. The end cap includes a hollow brush tower extending therefrom and defining a brush holder slidably receiving the motor brush therein such that the brush holder defines in part the high pressure chamber. The end cap also includes an aperture with the shunt wire extending therethrough such that the shunt wire is sealed with the aperture to prevent the fuel from passing therethrough.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Inventors: JOHN G. FISCHER, MITCHAL A. PETERSON
  • Patent number: 9004880
    Abstract: A fan motor set locating structure includes a base seat and a motor set. The base seat has a bearing cup. At least one locating notch is formed on a top section of the bearing cup. A bearing is disposed in the bearing cup. The motor set includes an insulation support. One side of the insulation support is formed with a sleeve. The sleeve is capped on the bearing cup. The sleeve has at least one protrusion section protruding from the sleeve to the bearing cup corresponding to the locating notch. The protrusion section is engaged in the locating notch in abutment with the bearing. Accordingly, the motor set can be quickly fixedly assembled with the bearing cup to fix the bearing. Therefore, the number of the components is decreased and the assembling process is speeded.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: April 14, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Yen-Chin Lu, Chun-Hao Huang, Chun-Liang Ho
  • Publication number: 20150086398
    Abstract: A rotor unit for a brushless direct current motor (BLDC motor) comprises a main body integrally formed with a rotor shaft and an annular ring magnet mounted on the main body. The annular magnet comprises an anisotropic hard ferrite and is laterally magnetized. The rotary shaft and the main body of the rotor unit may be formed from one plastic material. The rotor unit is supported within the BLDC motor via self-lubricating bearing seats.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Gernot Teufl, Andreas Pleschinger
  • Patent number: 8979504
    Abstract: Embodiments of the invention provide a pump assembly and a method for assembly the pump assembly. The pump assembly includes a stator assembly, a lower pump housing, an upper pump housing, a rotor assembly, and an isolation cup. The method includes coupling the stator assembly to the lower pump housing, overmolding an overmold material over the stator assembly and the lower pump housing, positioning the isolation cup over the overmold, and positioning the rotor assembly inside the isolation cup. The method further includes placing the upper pump housing over the rotor assembly and coupling the upper pump housing to the lower pump housing.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: March 17, 2015
    Assignee: Moog Inc.
    Inventors: Lee Snider, Moe K. Barani, Troy Anderson, Ronald Flanary
  • Patent number: 8974198
    Abstract: A counterweight cover for a compressor is provided and may include an annular body having a recess at least partially defined by an outer circumferential portion, an inner circumferential portion, and an upper portion connecting the outer circumferential portion and the inner circumferential portion. A suction baffle may be disposed on the annular body and may direct a flow of suction gas within the compressor.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: March 10, 2015
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: James A. Schaefer, Stephen M. Seibel, Daniel L. McSweeney, Robert J. Comparin
  • Patent number: 8974199
    Abstract: A mixed-flow fan features a housing (42); an impeller (43) journaled rotatably with respect to the housing, and equipped with fan blades (54); a generally cylindrical air conduit (50) defined between the fan housing and the impeller, the fan blades extending into the air conduit in order, during operation, to transport air; an external-rotor motor (75) having an internal stator (100) and an external rotor (81) which includes a tubular ferromagnetic yoke (63) partly embedded in material of the impeller. A cup-shaped yoke (72) fits into a central cavity (68) of the tubular yoke (63) and accommodates a permanent magnet arrangement (66) which interacts with the stator. The tubular yoke (63) and the cup-shaped yoke (72) together serve as a magnetic return path for the external-rotor motor. The structure minimizes damage during final assembly, and simplifies insertion of balancing weights.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: March 10, 2015
    Assignee: EBM-Papst St. Georgen GmbH & Co. KG
    Inventors: Harald Schmid, Tobias Maier, Martin Mueller, Matthias Weiss
  • Patent number: 8974194
    Abstract: An impeller of an advection-type fan includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion and a peripheral portion, with a first plane facing in a first direction and a second plane facing in a second direction opposite to the first direction arranged between the shaft-coupling portion and the peripheral portion. The metal base plate is in a plane form between the shaft-coupling portion and the peripheral portion. The shaft has a fixing end and a free end. The fixing end is coupled with the shaft-coupling portion, and the free end extends in the first direction. Each plastic blade has a coupling portion and an air-driving portion. The coupling portion is coupled with the peripheral portion, and the air-driving portion extends in the second direction.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: March 10, 2015
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Tso-Kuo Yin, Chih-Hao Chung, Yuan-Jie Zheng
  • Publication number: 20150052935
    Abstract: In a rotor portion, a magnet formed in a cylindrical shape, a first magnet holder that holds an impeller-attachment-portion-side end portion of the magnet, a second magnet holder that holds a magnetic-pole-position-detection-element-side end portion of the magnet, a back yoke disposed inside the magnet, a sleeve bearing disposed inside the back yoke, and a position detection magnet that is provided on a surface of the second magnet holder at a side opposite to the side at which the magnet is attached and allows a magnetic flux of the position detection magnet to be detected by the magnetic-pole-position detection element are assembled integrally together with a thermoplastic resin, and the impeller attachment portion is formed of the thermoplastic resin.
    Type: Application
    Filed: January 31, 2012
    Publication date: February 26, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroki Aso, Kazunori Sakanobe, Mineo Yamamoto, Hiroyuki Ishii, Junichiro Oya, Yuto Urabe
  • Publication number: 20150056088
    Abstract: An inner-rotor fan includes a hub, a retaining tube, and a magnetic ring. The retaining tube is disposed in the hub, and the magnetic ring is disposed on the retaining tube. The retaining tube and the hub are formed as a single piece, and thus the stability of the fan is increased. Moreover, the magnetic flux in an inner hole of the magnetic ring is about 0 Wb, and thus an iron ring within the magnetic ring may be excluded.
    Type: Application
    Filed: November 20, 2013
    Publication date: February 26, 2015
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Ming-Yuan HUNG, Chin-Wei LIN, Chin-Sheng LIU
  • Publication number: 20150052936
    Abstract: A sealed compressor includes a centrifugal impeller above a rotor to synchronously rotate. A refrigerant rises through a rotor air hole, flows in an upper space, and flows out from a discharge pipe. The centrifugal impeller includes an oil separation plate on the rotor, and plural vanes standing on the oil separation plate, and forms inter-vane flow passages between adjacent vanes, and a vane inner flow passage that guides refrigerant from the rotor air hole to inner entrances of the inter-vane flow passages. Outer exits of the inter-vane flow passages are disposed along an entire circumference, and refrigerant increased in pressure while passing through the inter-vane flow passages flows out from the outer exits to the upper space. The oil separation plate closes a short-circuit passage through which the refrigerant directly flows from the vane inner flow passages to the discharge pipe without passing through the inter-vane flow passages.
    Type: Application
    Filed: January 16, 2013
    Publication date: February 26, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsuhide Yokoyama, Shogo Moroe, Yoshinori Shirafuji, Teruhiko Nishiki, Taro Kato, Hideaki Maeyama, Hiroki Nagasawa, Keisuke Shingu
  • Publication number: 20150052934
    Abstract: A resin magnet, a magnetic pole position detection resin magnet, and a sleeve bearing, which is disposed inside the resin magnet, are integrally molded together with a thermoplastic resin in a rotor portion. At the same time, an impeller attachment portion is formed by the thermoplastic resin.
    Type: Application
    Filed: January 31, 2012
    Publication date: February 26, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroki Aso, Kazunori Sakanobe, Mineo Yamamoto, Hiroyuki Ishii, Junichiro Oya, Yuto Urabe
  • Patent number: 8961154
    Abstract: An electric water pump apparatus may include a body having a stator chamber and a rotor chamber therein, a stator having a hollow cylindrical shape and being disposed in the stator chamber and generating a magnetic field, wherein the stator fluidly insulates the stator chamber and the rotor chamber, a rotor disposed in the rotor chamber and enclosed by the stator, wherein the rotor is rotated by the magnetic field, and a pump cover connected to the body and forming a volute chamber therein, wherein the volute chamber and the rotor chamber are fluidly-communicated through a connecting hole formed to the body and a coolant is supplied to the rotor chamber through the connection hole, wherein the stator includes a stator groove formed in an inner circumference therein and the stator groove is fluid-connected to the rotor chamber and the volute chamber through the connection hole.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: February 24, 2015
    Assignees: Hyundai Motor Company, Myunghwa Ind. Co., Ltd., Amotech Co., Ltd., Kia Motors Corporation
    Inventors: Jeawoong Yi, Seung Yong Lee, Gyuhwan Kim, Yun Seok Kim, Yong Sun Park, Tae-Sung Oh, Kyung-Hwan Kim, Jong-Hoon Lee, Kwang-Ho Lee
  • Patent number: 8961152
    Abstract: Portable battery-operated fan comprises a two-part base of which the lower part can be detached to allow the fan to stand on its own or attached to permit the fan to be placed in a cup or bottle holder. A facsimile of an element of sports apparatus such as a golf ball, basketball, or bowling pin is pivotally attached to the fan and provides a mounting place for a DC motor which is driven by a battery in the lower base. A shrouded fan is attached to an end or a side of the sports apparatus facsimile so as to provide cooling air flow on demand.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: February 24, 2015
    Inventors: Cynthia Wark, Justin James Paul Bennett
  • Patent number: 8939739
    Abstract: An electric compressor includes a compression mechanism, an electric motor for driving the compression mechanism, and a drive circuit for controlling the electric motor. The drive circuit includes an external connector made of an insulating material. The external connector has a connecting terminal that is constructed to be electrically connected to an external power source. The drive circuit further includes a circuit board electrically connected to the connecting terminal and a filter element electrically connected to the circuit board. The drive circuit is accommodated in a metal housing. The filter element is integrally formed with the external connector such that contact of the filter element with the housing is prevented.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: January 27, 2015
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yusuke Kinoshita, Shingo Enami, Ken Suitou
  • Publication number: 20150017031
    Abstract: A pump assembly includes an electric drive motor having a stator and a permanent magnet rotor, at least one impeller connected to the rotor via a rotor shaft, a thrust bearing accommodating axial forces acting on the impeller and rotor shaft in operation, and at least one radial bearing arranged on the rotor shaft. The rotor and stator are designed such that a magnetic axial force, acting in the direction of the rotation axis of the rotor and acting on the rotor in the direction of the inflow direction into the impeller, is produced between the rotor and the stator. The rotor shaft and rotor are mounted displaceably in the axial direction relative to the stator, and with an axial displacement of the rotor shaft in the inflow direction into the impeller, the bearing surfaces of the radial bearing lying opposite one another at least partly disengage.
    Type: Application
    Filed: December 19, 2012
    Publication date: January 15, 2015
    Applicant: Grundfos Holding a/s
    Inventor: Thomas Blad
  • Patent number: 8932035
    Abstract: An electric water pump apparatus may include a body having a stator chamber and a rotor chamber therein, a stator having a hollow cylindrical shape and being disposed in the stator chamber and generating a magnetic field, wherein the stator fluidly insulates the stator chamber and the rotor chamber, a rotor disposed in the rotor chamber and enclosed by the stator, wherein the rotor is rotated by the magnetic field, and a pump cover connected to the body and forming a volute chamber therein, wherein the volute chamber and the rotor chamber are fluidly-communicated through a connecting hole formed to the body and a coolant is supplied to the rotor chamber through the connection hole, wherein the stator includes a stator groove formed in an inner circumference therein and the stator groove is fluid-connected to the rotor chamber and the volute chamber through the connection hole.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: January 13, 2015
    Assignees: Hyundai Motor Company, Myunghwa Ind. Co., Ltd., Amotech Co., Ltd., Kia Motors Corporation
    Inventors: Jeawoong Yi, Seung Yong Lee, Gyuhwan Kim, Yun Seok Kim, Yong Sun Park, Tae-Sung Oh, Kyung-Hwan Kim, Jong-Hoon Lee, Kwang-Ho Lee
  • Patent number: 8920142
    Abstract: A sealing liner for use in a pump motor incorporates a radially enlarged portion at one end, and a radially smaller portion extending from the one end to an opposed end. A length of the overall sealing liner including the radially smaller portion and the radially enlarged portion is defined as a first length. A length of said radially enlarged portion is defined as a second length. A ratio of the first length to the second length is between about 6.5 and about 8.5. A stator assembly, a pump and a method are also disclosed.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 30, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Philip Gillingwater, Aaron M. Finke
  • Patent number: 8920136
    Abstract: A turbomachine includes a motor including a rotor assembly and a stator assembly. A sleeve fluidly separates the rotor assembly from the stator assembly. The sleeve has first and second ends axially spaced from one another. In one example, first and second seals are arranged at the first end and fluidly separate the rotor assembly from the stator assembly. The second seal is arranged downstream from the first seal relative to the rotor assembly. In another example, the sleeve includes wet and dry sides. A first seal is arranged at the first end on the wet side. A drain is provided in the housing and arranged in a region downstream from the first seal. The drain fluidly connects the region to an exterior of the housing.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: December 30, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Craig R. Legros, Aaron M. Finke
  • Patent number: 8920143
    Abstract: An electronically commutated DC motor for a liquid pump, comprising a pump housing, a suction connection and a pressure connection, a substantially disk-shaped pump rotor mounted rotatably in the pump housing, the rotor comprising an impeller having a plurality of pump vanes and a permanent magnet, a partition separating a pump space from a dry space, wherein the partition is disposed in an axial gap between the pump rotor and a plurality of axially parallel oriented stator poles of the DC motor, which are each provided with an insulating body and a stator winding, the stator poles adjoin a stator yoke, which is connected to a metallic heat-conducting body, and the stator containing the stator poles, the stator windings, the stator yoke and the heat-conducting body is disposed in a motor housing made of plastic material.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: December 30, 2014
    Assignee: Buhler Motor GmbH
    Inventors: Thomas Stolpe, Helmut Kellermann, Olai Ihle, Gerhard Walter, Klaus Weiske
  • Patent number: 8911220
    Abstract: An electric fluid pump includes a casing, a rotor arranged in the casing, and a shaft member supported by the casing and including a shaft portion extending in the casing in a direction of an axis of the shaft member, having a first end portion arranged at one axial end of the shaft member and a second end portion arranged at the other axial end of the shaft member, and supporting the rotor, a collar portion arranged at the first end portion of the shaft portion and embedded in the casing, and a stepped section arranged between the shaft portion and the collar portion, positioned closer to the second end portion of the shaft portion than the first end portion of the shaft portion, and configured to have an end face facing the second end portion and serving as a bearing surface on which the rotor is rotatably supported.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: December 16, 2014
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Shuji Hattori, Atsushi Unno
  • Patent number: 8911221
    Abstract: A blower assembly for a leaf blower has a case, a motor, an impeller driven by the motor, and an axial fan driven by the motor. The axial fan and the impeller are connected to opposite ends of the motor. The case has an air inlet, an air outlet and an air channel communicating the air inlet with the air outlet. The impeller is disposed inside the air channel to move air through the air channel from the air inlet to the air outlet. The axial fan is arranged to generate an axial flow of air towards the motor to cool the motor.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 16, 2014
    Assignee: Johnson Electric S.A.
    Inventors: On Hing Cheng, Jicheng Pan, Chun Lei Zhang
  • Patent number: 8907607
    Abstract: A soft start circuit for a forward/reverse rotation fan includes a forward/reverse switch unit, a soft start activation unit, a soft start control unit, a Hall IC and a driver IC, wherein the soft start activation unit comprises a first signal transmission loop and a second signal transmission loop. The soft start circuit activates the soft start control unit via a first instantaneous signal outputted by the first signal transmission loop or a second instantaneous signal outputted by the second signal transmission loop to make the soft start control unit output a control signal to a speed control terminal. When the rotating direction of fan is switched from one direction into another, the fan starts rotation in a soft start mode owing to high level of the control signal transmitted from the soft start control unit to the speed control terminal during initial rotation of the fan.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: December 9, 2014
    Assignee: ADDA Corp.
    Inventor: Ching-Cheng Ma
  • Publication number: 20140356200
    Abstract: A pump for pumping liquid has an electric motor driving an impeller disposed within a pump chamber. The motor has a stator, a rotor, and an end cap. The end cap has a printed circuit board upon which are mounted two brushes connected to a pair of motor terminals through a thermistor. Optionally, the motor may include, singularly or in combination, one or more inductors located between the brushes and the motor terminals, a varistor for preventing excessive voltage spikes electrically connected between the motor terminals, and one or more capacitors electrically connecting the motor terminals to ground.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Applicant: Johnson Electric S.A.
    Inventors: Chikeung CHAN, Yunbo YANG
  • Patent number: 8899946
    Abstract: A fan includes a motor including a rotating portion and a stationary portion; an impeller including a plurality of blades and a blade support portion to which the blades are fixed, and arranged to cover the motor; and a housing including a lower plate portion arranged on a lower side of the blades, a side wall portion arranged to cover sides of the blades, and an upper plate portion arranged on an upper side of the blades and including an air inlet arranged to extend through the upper plate portion in an axial direction. A lower surface of the blade support portion includes a balance correction portion arranged to extend in a circumferential direction. The lower plate portion includes a through hole arranged to overlap with the balance correction portion in the axial direction to make a portion of the balance correction portion viewable from below the lower plate portion.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: December 2, 2014
    Assignee: Nidec Corporation
    Inventors: Hiroyoshi Teshima, Kiyoto Ida
  • Publication number: 20140341764
    Abstract: A wet rotor pump with an axial flux motor that includes a stator, a containment shell, and a rotor. The stator and the containment shell are arranged in a dry zone while the rotor on an impeller is arranged in a wet zone. The wet rotor pump further has an inlet line for a fluid to be pumped by the impeller, and a bearing for the impeller. Said bearing is arranged at one end of the inlet line and supports the impeller in such a way that the impeller has an axial degree of freedom. The inlet line extends through the stator, the containment shell, and the bearing in the axial direction.
    Type: Application
    Filed: January 17, 2013
    Publication date: November 20, 2014
    Applicant: YASA MOTORS POLAND SP. Z O.O.
    Inventor: Markus Müller
  • Patent number: 8888472
    Abstract: Provided is a waterproof fluid pump including: a motor that is accommodated in a first case and comprises a stator and a rotor, to thus generate a rotating torque; an impeller that is accommodated in a pump housing that is mounted in the first case and that receives the rotating torque of the motor to thus pump fluid; a support shaft to which the rotor and the impeller are rotatably supported and that is fixed to the first case; a first magnet that is fixed to the rotor and is rotated with the rotor; and a second magnet that is fixed to the impeller and is disposed facing the first magnet and that has opposite polarity to that of the first magnet. Thus, fluid may be fundamentally prevented from being introduced into the inside of the motor.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: November 18, 2014
    Assignee: Amotech Co., Ltd.
    Inventor: Byoung Soo Kim
  • Patent number: 8882478
    Abstract: A motor stator 9b and a flange portion 41 are integrally formed with each other, so that a stator assembly is formed. The flange portion 41 extends outward from a coil arrangement portion of the motor stator 9b in a radial direction, and at least a part of a radial outer face 41a of the flange portion 41 is exposed to the outside of a housing 7. The position of the stator assembly 12 can be adjusted with respect to the housing 7 in a circumferential direction along a circle that has an axial center of a rotating shaft 11 as a center thereof. A wiring hole 41b through which a cable passes is formed in the flange portion 41, and the wiring hole 41b is opened at the radial outer face 41a of the flange portion 41.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: November 11, 2014
    Assignee: IHI Corporation
    Inventor: Masahiro Shimizu
  • Patent number: 8876493
    Abstract: A fan motor includes a pair of fans axially mounted to both sides of a rotary shaft of the motor. The motor includes an inner rotor placed inside a stator wound with windings and an outer rotor placed outside the stator. The motor thus has a dual-rotor structure where the inner rotor and the outer rotor are held such that both the rotors can rotate on the rotary shaft.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 4, 2014
    Assignee: Panasonic Corporation
    Inventors: Kiyomi Kawamura, Hu Li, Yuichi Yoshikawa, Hiroshi Murakami, Yasushi Kato
  • Publication number: 20140309965
    Abstract: A cooling fan having a motor is disclosed. The cooling fan includes a stator assembly and an impeller. The stator assembly includes a shaft-coupling portion and a coil unit. The impeller includes a hub and a magnetic element. An axial air gap is formed between the magnetic element and the coil unit. A height between a bottom face of the shaft-coupling portion and a top face of the hub is from 1.5 mm to 3.5 mm. The coil unit has a first maximum width, and the hub has a second maximum width. A ratio of the first maximum width to the second maximum width is from 0.7 to 1.3. A method for determining the dimensional proportion of the motor includes selecting a ratio of a first maximum width to a second maximum width as 0.7 to 1.3, and determining the values of the first and second maximum widths.
    Type: Application
    Filed: February 7, 2014
    Publication date: October 16, 2014
    Applicant: SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD.
    Inventors: Alex Horng, TIAN-XUAN WANG
  • Patent number: 8840381
    Abstract: An electric compressor including a compression mechanism, an electric motor, an inverter, a compressor housing, a sealed terminal, a cluster block, and a metal brace. The sealed terminal is arranged in the compressor housing and electrically connects the inverter and the electric motor. Further, the sealed terminal includes a terminal pin, which is formed from a conductive material, a terminal holder, and an insulative body. The cluster block includes an insertion hole into which the terminal pin is inserted. The metal brace electrically connects the terminal pin to the lead wire. The cluster block includes a protrusion projecting around the insertion hole and surrounding part of the insulative body. The insertion hole has an inside diameter larger than an outside diameter of the terminal pin.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: September 23, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Hiroshi Fukasaku, Hiroyuki Gennami
  • Patent number: 8840379
    Abstract: A ceiling fan includes an outer rotor motor having a rotor connected to a rotating disc and a stator connected with an inner tube. An outer tube is fitted around the inner tube, having one end connected with the rotating disc, and a plurality of elastic buffer pieces are positioned between the outer tube and the rotating disc. By so designing, when the rotor is rotated to actuate the rotating disc together with the outer tube to rotate, the elastic buffer pieces can absorb the vibration produced by operation of the outer rotor motor and also correct bias swinging of the outer tube through their elastic deformation to enable the outer tube to be rotated stably.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: September 23, 2014
    Assignee: Air Cool Industrial Co., Ltd.
    Inventor: Cliff Wang
  • Publication number: 20140271287
    Abstract: There is provided a motor including: an upper housing; a lower housing coupled to the upper housing to provide an internal space; a shaft disposed within the internal space and coupled to a hydrodynamic bearing assembly; a rotor core coupled to the shaft and rotated together with the shaft; and a balancing unit coupled to the shaft to correct a rotational imbalance at the time of rotation of the shaft and the rotor core.
    Type: Application
    Filed: June 7, 2013
    Publication date: September 18, 2014
    Inventor: Viatcheslav SMIRNOV
  • Patent number: 8834135
    Abstract: A heat-dissipation fan comprises a hollow cylinder body, a fixing pillar, a stator, a fan wheel, a bearing and bearing plate. The fixing pillar comprises a free end and a fixing end fixed at the hollow cylinder body. The stator is installed at the hollow cylinder body being installed at the bearing plate. The fan wheel comprises a top plate, an outer ring wall, an inner ring wall and a penetration hole formed at the top plate. The inner ring wall surrounds the penetration hole, the hollow cylinder body and the stator are located between the outer ring wall and the inner ring wall, and the bearing is coupled to the inner ring wall. The free end of the fixing pillar is protruded to a top surface of the top plate, which results a supporting surface and the top surface being spaced apart by a first spacing.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: September 16, 2014
    Assignee: ADDA Corp.
    Inventors: Wen-Lin Hsu, Fu-Jung Ou, Cheng-Chun Chou, Chin-Ho Tsai
  • Patent number: 8807968
    Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: August 19, 2014
    Assignee: Thoratec Corporation
    Inventors: Richard K. Wampler, David M. Lancisi