Patents Examined by Edgardo San Martin
  • Patent number: 12283847
    Abstract: Improving the coercive force of magnets used in a rotary electric machine by arranging magnets such that a q-axis side portion is located on an outer diameter side with respect to a d-axis side portion, and a magnet thickness Ti on an inner diameter side (d-axis side) of a rotor core is formed to be larger than a magnet thickness To on the outer diameter side (q-axis side) of the rotor core. An axial space is formed in the magnets such that when the lateral cross section of each of the magnets is divided into an outer diameter side region112o and an inner diameter side region112i in a manner that the lateral cross section areas are equal to each other with a circumference C around a rotation center as a boundary, and a space density of the axial space in the inner diameter side region112i is larger than a space density of the axial space in the outer diameter side region112o.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: April 22, 2025
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Masahiro Hori, Masanori Sawahata
  • Patent number: 12278541
    Abstract: A cooling system for a belt starter generator, which has at least one housing portion, a plurality of flow apertures integrally formed as part of the housing portion, a heat sink connected to the housing portion, the heat sink cooled by liquid cooling, and a plurality of fins integrally formed as part of the heat sink. A rotor having a shaft is at least partially disposed in the housing portion, and a plurality of slots are integrally formed as part of the rotor. An impeller having a plurality of blades is mounted on the shaft. As the shaft rotates, the rotor and the impeller also rotate, and the blades generate air flow to create a flow path such that air flows between each of the fins, through the flow apertures, and through the slots of the rotor, and through the blades, achieving air cooling of the belt starter generator.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 15, 2025
    Assignee: Vitesco Technologies USA, LLC
    Inventors: Andrew Joseph Wisniewski, Laura Noel Church
  • Patent number: 12278539
    Abstract: Methods and systems are provided for an electric axle in a vehicle. An electric axle comprises an electric motor having a stator and a rotor, a coolant manifold mounted to an end plate of the rotor, wherein the coolant manifold is configured to flow coolant to rotor coolant lines extending axially through the rotor, and a first spray ring arranged adjacent to the coolant manifold and a second spray ring arranged distally to the coolant manifold, wherein the first spray ring receives coolant from the coolant manifold via an interior passage and the second spray ring receives coolant from the coolant manifold via an outer passage.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: April 15, 2025
    Assignee: DANA TM4 INC.
    Inventors: Carl Trudel, Steven Vanhee, Luke Miller
  • Patent number: 12273005
    Abstract: A rotary electric machine includes a rotor shaft, a rotor attached to the rotor shaft, a stator, and a case that houses the rotor and the stator. One end side and the other end side of the rotor shaft in an axial direction are respectively supported by the case via bearings with the rotor interposed therebetween. The bearings electrically insulate the rotor shaft and the case from each other.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: April 8, 2025
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yasuhiro Kawamura, Yukihiro Wakihata, Hiroki Tanaka, Koshiro Baba
  • Patent number: 12272344
    Abstract: Systems and methods are disclosed for a multi-layered sound absorption structure. The multi-layered sound absorption structure may include a form material, an acoustic material disposed on a surface of the form material, and a construction material disposed on the acoustic material. The acoustic material may couple to the construction material during curing of the construction material. After the construction material is cured, the form material may be removed exposing a least a portion of the acoustic material.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: April 8, 2025
    Assignee: Nut Shell LLC
    Inventors: Douglas Allan Bixel, Benjamin F. Forrest
  • Patent number: 12272347
    Abstract: A meta-material acoustic lens is based on multiple acoustic channels, having a helix shaped path arranged radially around the center. The helix pitch is a function of the helix radius. This changes the effective thickness of the lens as a function of its distance from the center of the lens. This create a phase shift gradient across the lens, which in turn changes the wavefront from one side of the lens to the other. This results with either a focusing lens, when the effective thickness decreases from center to edge of the lens, or a diverging lens when the effecting thickness decreases from center to edge of the lens.
    Type: Grant
    Filed: October 24, 2021
    Date of Patent: April 8, 2025
    Inventor: Moshe Benezra
  • Patent number: 12269245
    Abstract: An acoustic treatment panel includes at least one acoustically resistive layer, a reflective layer and at least one cellular structure interposed between the acoustically resistive layer and the reflective layer. The cellular structure includes cylindrical and identical main tubes which are closed at one end by the acoustically resistive layer and at the other end by the reflective layer, spacer zones between the main tubes, the spacer zones being sealed relative to one another, cutouts made at an end of certain main tubes, in contact with the reflective layer, and/or secondary tubes positioned in the main tubes and/or in the spacer zones, the cutouts and/or the secondary tubes being configured to generate acoustic cells of different dimensions from identical main tubes.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: April 8, 2025
    Assignee: Airbus Operations SAS
    Inventors: Florent Mercat, Florian Ravise
  • Patent number: 12270165
    Abstract: The invention relates to a sound absorber (1) for a traffic route noise protection wall, wherein the sound absorber (1) comprises at least one plastic foam board (2). According to the invention, a first surface (3) of the plastic foam board (2) has a predeterminable number of sound absorber recesses (4) for predetermination of the absorption behavior with a predeterminable frequency response, wherein each of the sound absorber recesses (4) extends only through part of the thickness (5) of the plastic foam board (2).
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 8, 2025
    Assignee: Sealed Air Verpackungen GmbH
    Inventor: Ralf Dirnberger
  • Patent number: 12266334
    Abstract: The sound leakage reduction device may include an energy conversion structure, a vibration structure, and a housing. The housing may include a vibration cavity and at least one resonance cavity. The energy conversion structure may be located in the vibration cavity and connected with the vibration structure. The at least one resonance cavity may communicate with the vibration cavity through at least one communication hole. A volume of each resonance cavity may be smaller than a volume of the vibration cavity.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: April 1, 2025
    Assignee: SHENZHEN SHOKZ CO., LTD.
    Inventors: Lei Zhang, Junjiang Fu, Fengyun Liao, Xin Qi
  • Patent number: 12258755
    Abstract: A sound isolation assembly comprising: one or more backing plates; one or more acoustic isolators; and a backing block. The acoustic isolators may be secured between the backing plates and the backing block when the backing plates are fastened to the backing block. When the backing plates are fastened to the backing block, the backing plates are substantially prevented by the acoustic isolators from being in direct contact with the backing block. The acoustic isolators may be fastened to the studs. The sound isolation assembly, when installed in a wall that is supporting a heavy load, raises the Sound Transmission Class rating of that wall.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: March 25, 2025
    Assignee: MTEC, LLC
    Inventors: Michael Ray Gernhart, Dalton Michael Jeffery Gernhart, Elzo Forrest Gernhart
  • Patent number: 12249866
    Abstract: A stator structure includes a silicon steel sheet, a first plastic material and a second plastic material. The silicon steel sheet has a plurality of pole faces. The first plastic material covers on the silicon steel sheet. The second plastic material forming on the first plastic material. The first plastic material covered on the plurality of the pole faces is not covered by the second plastic material. The thermal conductivity of the first plastic material is higher than that of the second plastic material.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: March 11, 2025
    Assignee: Delta Electronics, Inc.
    Inventors: Chun-Nan Wu, Yang-Hsin Lee
  • Patent number: 12231004
    Abstract: A rotor of an electric motor, in particular for a power steering system, including a rotor shaft, which is directed in an axial direction, and a number of rotor cores, which are arranged coaxial to each other along the rotor shaft, and an intermediate ring arranged between two rotor cores arranged adjacent to each other in the axial direction, which intermediate ring holds the adjacent rotor cores interlockingly in a crossed orientation relative to each other.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 18, 2025
    Assignee: Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
    Inventors: Saliba Ok, Kevin Koch
  • Patent number: 12230242
    Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: February 18, 2025
    Assignee: State Grid Jiangsu Taizhou Power Supply Company
    Inventors: Yong Li, Ting Chen, Ling Ju, Jijing Yin, Ze Zhang, Xingchun Xu, Beibei Weng, Zhenguo Chuai, Yan Wu, Li Chen, Yang Cheng, Tianyu He, Le Yuan, Jie Qian, Debao Tang, Yanquan Zhu, Anqi Ding, Kaiming Bian, Wen Chen, Wanjian Hu, Hongbo Dai, Weijun Shi
  • Patent number: 12224651
    Abstract: An electric motor includes a fan guard and rotor shaft mounted rotatably relative to the fan guard and angle sensor. A housing of the angle sensor is connected to a torque support, which is connected to the fan guard, the torque support having members having a meandering shape.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: February 11, 2025
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Andreas Zimmermann, Thomas Knaus
  • Patent number: 12218570
    Abstract: A rotating electric machine including a rotor, a stator, and a case forming outflow holes through which a refrigerant flows out toward an extra-slot conductor of a stator coil. The outflow holes are arranged above the extra-slot conductor, and when the bending direction of the extra-slot conductor with respect to an intra-slot conductor arranged on the outermost diameter side in a slot in the stator coil on an upper portion of the stator is a coil bending direction, the first outflow hole is arranged on the bending direction side with respect to a vertical line passing through the rotation center axis, and the second outflow hole is arranged on a side opposite to the bending direction with respect to the vertical line, and the arrangement angle of the second outflow hole with reference to the vertical line is larger than the arrangement angle of the first outflow hole with reference to the vertical line.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: February 4, 2025
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Zhi Jing, Satoshi Yamamura, Kenichi Nakayama, Tomohiro Adachi, Shinji Yamazaki, Hiromitsu Okamoto, Yuuki Takahashi
  • Patent number: 12207990
    Abstract: Proposed is an earplug that can effectively reduce high-frequency noise using a metasurface. The high-frequency noise filtering earplug using a metasurface according to an embodiment of the present disclosure may include an eartip with an internal passage, an interference attenuation module having a damping passage for reducing noise and a first reflective cavity that is connected to the damping passage and reflects incident sound waves and transmits the sound waves to the damping passage, and a connecting tube installed between the eartip and the interference attenuation module to connect the internal passage and the damping passage to each other.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: January 28, 2025
    Assignee: Korea University Research and Business Foundation
    Inventors: Young June Moon, Hyung Keun Chung
  • Patent number: 12211481
    Abstract: Disclosed herein are systems using acoustic metamaterial surfaces comprising arrangements of unit cells arranged to introduce time delays to an incident acoustic wave. In embodiments the relative positions of two or more acoustic metasurfaces (81, 82) is selected or adjusted to control the acoustic output of the system such that the acoustic output of the system is a non-linear combination of the respective operations performed by the plurality of acoustic metasurfaces (81, 82), the non-linear combination being a convolution of the respective operations performed by the plurality of acoustic metasurfaces that is determined as a function of the relative positioning between the acoustic metasurfaces (81, 82). Also disclosed are applications of such acoustic metasurfaces in noise-reducing structures.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: January 28, 2025
    Assignee: The University of Sussex
    Inventors: Gianluca Memoli, Mihai Caleap, Bruce Drinkwater, Sriram Subramanian
  • Patent number: 12212920
    Abstract: A loudspeaker module and an electronic apparatus are disclosed, the loudspeaker module comprises a housing, a loudspeaker unit and a barrier rib body; the loudspeaker unit is provided in an inner cavity of the housing and divides the inner cavity of the housing into a front acoustic cavity and a rear acoustic cavity, the rear acoustic cavity is filled with sound-absorbing particles, and a cavity wall of the rear acoustic cavity is provided with a leakage hole. The barrier rib body is provided in the rear acoustic cavity, at least a part of the barrier rib body faces the leakage hole, and the distance between the leakage hole and the part of the barrier rib body facing the leakage hole is less than the size of the sound-absorbing particles. The technical solution can reduce the occurrence of the situation where the sound-absorbing particles block the leakage hole.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: January 28, 2025
    Assignee: GOERTEK INC.
    Inventors: Zedong Zheng, Guodong Zhao, Feng Zhang, Peng Zhang
  • Patent number: 12211475
    Abstract: Systems and devices are disclosed herein for absorbing unwanted target sounds. In one example, an acoustic scatterer for absorbing a target sound includes a housing defining a plurality of channels having an open end and a terminal end. The terminal ends of the plurality of channels are separate from each other and extend along a length of the housing. The acoustic scatterer also includes one or more spacers subdividing the plurality of channels along the length of the housing. In another example, a system for absorbing a target sound includes a plurality of acoustic scatterers, each having a housing that defines a plurality of channels having an open end and a terminal end. The terminal ends of the plurality of channels are separate from each other and extend along a length of the housing. The plurality of acoustic scatterers are stacked on top of each other in a lengthwise direction.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: January 28, 2025
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Mizuki Sakamoto, Tomohiro Miwa, Reimi Emoto, Xiaoshi Su, Debasish Banerjee
  • Patent number: 12212921
    Abstract: An apparatus for sound conversion is provided. The apparatus includes a sound channel and a sound transducer coupled to the sound channel, and the apparatus comprises an acoustic low-pass filter arranged in the sound channel.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: January 28, 2025
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventor: Jan Kueller