Patents Examined by Dnyanesh Kasture
  • Patent number: 10069154
    Abstract: An air feed device (1) for a fuel cell, having a shaft (2); a compressor wheel (4) fastened to one of the ends (5, 20) of the shaft (2), a bearing arrangement (6, 7, 8) arranged in a bearing housing (9) for mounting the shaft (2), and an electric motor (10) for driving the shaft (2), which electric motor is arranged in the bearing housing (9). The shaft (2) has two shaft bearing portions (11, 12) and a magnet portion (13) arranged between the shaft bearing portions (11, 12), forming the rotor of the electric motor (10). The shaft bearing portions (11, 12) and the magnet portion (13) are centered relative to one another by means of a centering arrangement (12A, 13F) which engages on an outer edge (A), the shaft bearing portions (11, 12) and the magnet portion (13) bearing in each case axially against one another.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: September 4, 2018
    Assignee: BorgWarner Inc.
    Inventors: Dietmar Metz, Martin Mueller, Aleksandar Sekularac
  • Patent number: 10018096
    Abstract: The present disclosure relates to a method of monitoring an electric motor serving to drive a pump, wherein, within a time interval T, current values are measured, an average value of the current values measured is determined and this average value is compared to a predetermined reference value. According to the disclosure, it is provided that the method extends to controlling the electric motor, wherein the current values measured reflect the profile of the winding current of the electric motor and, irrespective of whether they can be associated with an instantaneous maximum value of the current profile, are included in determining the average value, and wherein the average value is considered by the motor control as input parameter.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: July 10, 2018
    Assignee: MAXON MOTOR AG
    Inventors: Hugo Wallimann, Ludwin Anton
  • Patent number: 10012226
    Abstract: A roller pump including a drive shaft, a motor, a roller head assembly, a stator housing, and an occlusion adjustment assembly. The drive shaft is coupled to the motor. The roller head assembly includes a hub, a slide body, and a roller. The hub is mounted to the drive shaft, and maintains the slide body and the roller. The stator housing forms a raceway receiving surface. The occlusion adjustment assembly includes an actuator knob, an actuating structure, and a ground shaft. The actuating structure interfaces with the slide body, and thus the roller, with rotation of the knob. The ground shaft supports the knob and is rotationally isolated from the drive shaft. A user and optionally a control system can adjust occlusion while the pump continuously delivers a fluid medium.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 3, 2018
    Assignee: Medtronic, Inc.
    Inventors: Craig Petersen, Kartik Radhakrishnan, Walter Carpenter
  • Patent number: 10006456
    Abstract: A fully-draining check valve with a mushroom assembly having a tapered back edge and a drain line disposed with the lower rim of the drain line below the tapered back edge to ensure no fluid becomes trapped in the check valve when not in use. Additionally, a fully-draining diaphragm pump is disclosed having a drain line configured to drain the lowest point of a product chamber to ensure no fluid becomes trapped in the diaphragm pump when not in use. A method of cleaning a fully-draining diaphragm pump and fully-draining check valve assembly is further disclosed comprising inducing turbulent flow of water, wash solution, and/or sanitizer through the assembly and opening ball valves the drain lines of the fully-draining check valves to vent the assembly.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: June 26, 2018
    Assignee: Murzan, Inc.
    Inventor: Alberto Bazan
  • Patent number: 9989048
    Abstract: A method for controlling a stroke velocity in a pump includes using a sensor to detect a start of a pump stroke and an end of the pump stroke. A stroke time is calculated, the stroke time being a time period between the start of the pump stroke and the end of the pump stroke. The stroke velocity is calculated based on a stroke length and the stroke time. The stroke velocity is compared to a reference stroke velocity. A hydraulic supply pressure to the pump is increased if the calculated stroke velocity is less than the reference stroke velocity, and the hydraulic supply pressure is decreased if the calculated stroke velocity is more than the reference stroke velocity.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: June 5, 2018
    Assignee: Caterpillar Inc.
    Inventors: Sunil J. Bean, Alan R. Stockner, Joshua W. Steffen, Cory A. Brown
  • Patent number: 9970445
    Abstract: To provide a portable blower having excellent battery heat radiating properties. A battery mounting portion projects convexly into an air passage. Outer surfaces of a bottom surface section and side surface sections of the battery mounting portion form part of an inner surface of the air passage. The battery mounting portion holds a battery pack at an attitude that a center of gravity of the battery pack is as close to a handle portion as possible. Specifically, the battery mounting portion holds the battery pack in such a manner that the greatest surface of the battery pack having a substantially cubic shape faces the handle portion. The battery mounting portion holds the battery pack in such a manner that a longitudinal direction of the battery pack faces the air passage.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 15, 2018
    Assignee: HITACHI KOKI CO., LTD.
    Inventors: Seiichi Kodato, Mizuho Nakamura, Tomomasa Nishikawa, Kouji Sagawa
  • Patent number: 9963212
    Abstract: A submersible electric thruster operable to propel underwater vehicles, surface vehicles, amphibious vehicles, etc. The submersible electric thruster includes a stator assembly having a base, stator, windings, and bearings and an external rotor assembly having a cylindrical arrangement of permanent magnets with a hub that is secured to a shaft. The stator forms the center of the motor and the permanent magnets spin around the stator. A propeller hub is integrally connected to the rotor assembly with angularly spaced propeller blades extending radially from the propeller hub. An annular nozzle surrounds the propeller and motor, forming an inlet and outlet for water flow. A nose cone is connected to the stator assembly and a tail cone is integrally connected to the nozzle assembly. Supporting arms may extend from the stator assembly to support the nozzle and/or supporting arms may extend from the nozzle to the support the tail cone.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: May 8, 2018
    Assignee: Blue Robotics Inc.
    Inventors: Rustom Friedrich Jehangir, Joseph Anthony Spadola
  • Patent number: 9957966
    Abstract: An inflator includes a box and a compressor unit installed in the box. The box is composed of a cover and a base, which are respectively provided with upper and lower airflow-guiding members, which can quickly guide the air current generated by a cooling fan of the compressor unit to enter the motor's housing via two openings of the housing and to flow out of the motor's housing via downstream through holes of the housing, thus dissipating the heat generated by a rotor assembly in the motor, so that heat is not easy to accumulate in the motor, so that maximum power output of the motor can be achieved, and the performance and service life of the motor can be increased.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 1, 2018
    Inventor: Wen-San Chou
  • Patent number: 9909577
    Abstract: An apparatus for providing a selectively variable orifice size for pulsation control in a reciprocating compressor system includes a rotatable upper windowed plate and a fixed lower windowed plate, the windowed plates being aligned a long a central axis to form a central cylindrical port. The upper and lower windowed plates each include at least one plate port and have mating contours allowing the upper plate to rotatably slide over the fixed lower plate, allowing their respective ports to be selectively aligned in any configuration to create any desired orifice size for a pulsation control device. The shapes of the windowed plates can be flat, conical, or any combination thereof. In one embodiment, the upper and lower windowed plates each include a plurality of plate ports which can be selectively aligned, the relative alignment of the plurality of plate ports determining the effective orifice size of the pulsation control device.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: March 6, 2018
    Inventor: Jared W. Adair
  • Patent number: 9846462
    Abstract: A thin cooling fan (1) includes a fan shell (10), a motor (20), a plurality of blades (30), and a PCB (40). The fan shell (10) comprises a base plate (11) and a shell cover (12) which cover to each other to form an inner space (100). The base plate (11) has a first surface (111) facing toward the inner space (100) and a second surface (112) having a receiving space (101) and opposite to the first surface (111). The motor (20) is combined in the inner space (100). The blades (30) are disposed in the inner space (100) and rotated by the motor (20). The PCB (40) is disposed in the receiving space (101) and flush with the second surface (112). Thus, the whole thickness of the cooling fan (1) is reduced and the flow channel design in the inner space (100) is not affected.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: December 19, 2017
    Inventors: Cheng-Wei Chen, Hsiang-Jung Huang
  • Patent number: 9841030
    Abstract: The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, and the pump efficiency is improved.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: December 12, 2017
    Inventors: Guanghui Xiang, Xiangxun Jiang, Huaiyu Chen
  • Patent number: 9835160
    Abstract: A converterless motor-driven pump system includes an off-grid prime mover, an electric power generator driven by the off-grid prime mover to generate a power output, an electric submersible pump (ESP) system, and a system controller. The ESP system includes a motor coupled to the electric power generator to receive the power output, and a pump driven by the motor to pump a fluid. The system controller includes a processor and a memory. The memory includes instructions that, when executed by the processor, cause the system controller to control the off-grid prime mover as a function of an operational parameter of the ESP system to maintain a desired operating point of the pump, and control the electric power generator to reduce the power output generated by the electric power generator while the desired operating point of the pump is maintained.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 5, 2017
    Assignee: General Electric Company
    Inventors: David Allan Torrey, Nathaniel Benedict Hawes, Deepak Aravind
  • Patent number: 9835175
    Abstract: A ventilation device includes a fan propeller (3) and a motor (5) with an external rotor (7b) for driving the propeller (3). The propeller (3) includes a central hub (11) having a frontal wall (17) and an internal first lateral wall (21) defining an accommodating housing for the external rotor (7b). The external rotor (7b) has a front part (9) and a second lateral wall (9?) bearing against the internal first lateral wall (21) of the central hub (11). The ventilation device further includes a device for snap-fitting over the internal first lateral wall (21) to secure the external rotor (7b) to the central hub (11).
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: December 5, 2017
    Inventors: Herve Crevel, David Bonneau
  • Patent number: 9821782
    Abstract: A motor pump includes a base body, a pump, and a motor. The motor includes a tubular yoke having a bottom and an opening on a base body side, a bearing, a rotation shaft, a rotor, a commutator, a brush and a brush shaft. The bearing is fitted to an inside of a bearing hole of the base body. The brush holder is fitted to an inside of the yoke and engages with an outer peripheral surface of the bearing. The brush holder and the bearing are disposed so as to be spaced from the base body in an axial direction of the rotation shaft. The motor-side seal member is provided between the yoke and the base body. The base body constitutes a stopper that prevents the brush holder from being extracted from the yoke.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: November 21, 2017
    Assignee: NISSIN KOGYO CO., LTD.
    Inventors: Takuro Kodama, Tadashi Yamashita, Tomohide Tanaka
  • Patent number: 9822770
    Abstract: A liquid transfer pump comprises a bellows-type chamber retractable and extendable by a reciprocating drive. The pump is fed by feed stock inflow controlled by a flexible tubular pinch-type valve, and propelled out of the chamber through an identical pinch-type valve. Quick pneumatic relief valves mounted directly on the pinch-type valves ensure instantaneous opening of the pinch-type valves thereby regulating liquid flow. Synchronous regulation of pump cycles is maintained by computer or microprocessor control.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: November 21, 2017
    Inventor: Kirby Norman Pabst
  • Patent number: 9816433
    Abstract: An exhaust-gas turbocharger (1) having a turbine (2); a compressor (3); and a bearing housing (4) which is arranged between the turbine (2) and the compressor (3) and a compressor-side flange (5) of which adjoins the compressor (3). A heat throttle (6, 6?) is arranged in the compressor-side flange (5) of the bearing housing (4).
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 14, 2017
    Assignee: BorgWarner Inc.
    Inventors: Josef-Hans Hemer, Uwe Schmitt, Oliver Schumnig
  • Patent number: 9810223
    Abstract: An electric pump includes a motor rotor provided in a first end region in the axial direction of a rotary shaft, a pump rotor provided in a second end region in the axial direction of the rotary shaft, and a pump housing supporting the rotary shaft. The pump housing has a first housing portion for accommodating the pump rotor and a second housing portion having a blocking portion. The first housing portion has a suction port for drawing in fluid and a discharge port for discharging the drawn-in fluid.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: November 7, 2017
    Assignee: ASMO Co., Ltd.
    Inventors: Masaru Irie, Toshihiro Matsuura
  • Patent number: 9784261
    Abstract: Provided is a gasket (30), which is used in a motor-driven compressor including an inverter housing, including a flat core of metal (31) and an elastic foamed material (32) so disposed as to cover both surfaces of the core (31), and the gasket (30) has embossed recesses and projections (33) with predetermined shapes. It is possible to enhance sealing performance to seal the inverter housing by using this gasket (30). A motor-driven compressor using this gasket (30) enhances vibration prevention.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: October 10, 2017
    Inventors: Takayuki Hagita, Shinichi Takahashi, Takeshi Hirano, Noriaki Arashi, Takayuki Watanabe
  • Patent number: 9777640
    Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position in the air inlet. The inlet-adjustment mechanism includes an axially elongated ring. In the open position, the radially outer surface of the ring is spaced from a tapering inner surface of the air inlet so that air can flow in an annular passage between the tapering surface and the ring. In the closed position, the ring abuts the tapering surface to close off the annular passage, whereby the effective inlet diameter is then defined by the inner diameter of the ring at its trailing edge. Movement of the inlet-adjustment mechanism from the open position to the closed position is effective to shift the compressor's surge line to lower flow rates.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: October 3, 2017
    Assignee: Honeywell International Inc.
    Inventors: Hani Mohtar, William Joseph Smith, Stephane Pees, Dominique Petitjean, Quentin Roberts
  • Patent number: 9777734
    Abstract: A thin type fan includes an impeller and a motor. The impeller includes a hub and a blade structure disposed around the hub. The motor includes a stator structure, a magnetic assembly, a bearing structure and a rotational shaft. The motor drives the impeller to rotate. The magnetic assembly is disposed within the hub and around the stator structure. The magnetic assembly includes a magnet and a magnetically permeable shell. The bearing structure includes a bearing seat and a single ball bearing. The single ball bearing is disposed in the bearing seat and forms an accommodating space, and the rotational shaft is disposed in the accommodating space.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 3, 2017
    Inventors: Chao-Wen Lu, Chun-Chih Wang