Patents by Inventor Yasunari Furuta
Yasunari Furuta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240039354Abstract: In this rotor, a first end plate includes a first opening portion that is provided at a first position corresponding to a position where a crimped portion is not arranged, and is connected to a first oil flow path, and a second end plate includes a second opening portion that is provided at a second position corresponding to a position where the crimped portion is arranged, and is connected to a second oil flow.Type: ApplicationFiled: February 25, 2022Publication date: February 1, 2024Applicant: AISIN CORPORATIONInventor: Yasunari FURUTA
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Publication number: 20230369952Abstract: A rotor manufacturing method includes: a jig attachment step of attaching a holding jig to a rotor core, the holding jig being a member that holds the rotor core by sandwiching the rotor core in a stacking direction of laminated steel sheets and pressing the rotor core; a rotor hub insertion step of inserting a rotor hub into an inner peripheral surface of the rotor core with the rotor core and the holding jig heated to a temperature equal to or higher than an insertable temperature at which the rotor hub can be inserted into the inner peripheral surface of the rotor core; and a cooling step of cooling the rotor core to fix the rotor core and the rotor hub together. The rotor hub insertion step is performed with the holding jig kept attached to the rotor core.Type: ApplicationFiled: December 25, 2020Publication date: November 16, 2023Applicant: AISIN CORPORATIONInventors: Satoru WAKUTA, Yasunari FURUTA, Toshiyuki SABURI
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Publication number: 20230086148Abstract: A rotor core includes a thermosetting resin material disposed in a magnet housing portion to fix a permanent magnet in the magnet housing portion. The resin material has a coefficient of linear expansion that is equal to or less than the coefficient of linear expansion of electromagnetic steel sheets.Type: ApplicationFiled: March 23, 2021Publication date: March 23, 2023Applicants: AISIN CORPORATION, TOYOBO CO., LTD.Inventors: Yasunari FURUTA, Toshiyuki SABURI, Masahito TANIGAWA, Daiki FUNAOKA, Tomohito OYAMA, Yuichi OZAWA, Ryo UETA, Yusaku SAKURABA
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Patent number: 11515746Abstract: A cooling mechanism for a vehicle electric motor. The cooling mechanism includes: a coolant oil passage provided between a rotor core and a rotor shaft of the electric motor; an oil supply passage provided inside the rotor shaft and communicating with the coolant oil passage; and at least one first discharge port and at least one second discharge port provided in respective first and second end plates disposed on respective opposite sides of the rotor core. The coolant oil passage includes a first passage portion communicating with the at least one first discharge port, and a second passage portion communicating with the at least one second discharge port. Each of the at least one first discharge port is located in a position that is different from a position of any one of the at least one second discharge port as seen in an axial direction of the rotor shaft.Type: GrantFiled: April 13, 2020Date of Patent: November 29, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Nobuyuki Takahashi, Junichi Yokota, Yasunari Furuta
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Publication number: 20210305859Abstract: A rotor for an electric motor, the rotor including a rotor core that has a magnet hole that is closed in a radial direction; a permanent magnet that is disposed in the magnet hole; and an adhesive layer that is provided between the permanent magnet and a wall surface of the magnet hole.Type: ApplicationFiled: September 20, 2017Publication date: September 30, 2021Applicant: AISIN AW CO., LTD.Inventors: Yasunari FURUTA, Yoshinari NAKAGAWA
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Publication number: 20200358326Abstract: A cooling mechanism for a vehicle electric motor. The cooling mechanism includes: a coolant oil passage provided between a rotor core and a rotor shaft of the electric motor; an oil supply passage provided inside the rotor shaft and communicating with the coolant oil passage; and at least one first discharge port and at least one second discharge port provided in respective first and second end plates disposed on respective opposite sides of the rotor core. The coolant oil passage includes a first passage portion communicating with the at least one first discharge port, and a second passage portion communicating with the at least one second discharge port. Each of the at least one first discharge port is located in a position that is different from a position of any one of the at least one second discharge port as seen in an axial direction of the rotor shaft.Type: ApplicationFiled: April 13, 2020Publication date: November 12, 2020Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Nobuyuki TAKAHASHI, Junichi YOKOTA, Yasunari FURUTA
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Patent number: 10714995Abstract: A rotor for a rotary electric machine, the rotor including a rotor core that has a magnet hole; a permanent magnet inserted into the magnet hole; and an adhesive layer provided between the permanent magnet and a wall surface of the magnet hole and including a plurality of capsule bodies therein, the adhesive layer fixing the permanent magnet to the wall surface of the magnet hole, wherein the adhesive layer is provided only on a wall surface of the magnet hole on a first side, which is one of a wall surface of the magnet hole on an inner side in a radial direction and a wall surface on an outer side in the radial direction.Type: GrantFiled: March 18, 2016Date of Patent: July 14, 2020Assignee: AISIN AW CO., LTD.Inventors: Yoshihisa Yamamoto, Yoshinari Nakagawa, Yasunari Furuta, Shinya Katayama
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Publication number: 20170353067Abstract: A rotor for a rotary electric machine, the rotor including a rotor core that has a magnet hole; a permanent magnet inserted into the magnet hole; and an adhesive layer provided between the permanent magnet and a wall surface of the magnet hole and including a plurality of capsule bodies therein, the adhesive layer fixing the permanent magnet to the wall surface of the magnet hole, wherein the adhesive layer is provided only on a wall surface of the magnet hole on a first side, which is one of a wall surface of the magnet hole on an inner side in a radial direction and a wall surface on an outer side in the radial direction.Type: ApplicationFiled: March 18, 2016Publication date: December 7, 2017Applicant: AISIN AW CO., LTD.Inventors: Yoshihisa YAMAMOTO, Yoshinari NAKAGAWA, Yasunari FURUTA, Shinya KATAYAMA
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Patent number: 7952240Abstract: A rotary electric machine having a stator including a coil; and a cooling unit that cools a coil end of the coil, which projects in an axial direction of the stator, wherein the cooling unit includes: an outer periphery cooling portion that is disposed along an outer peripheral surface of the coil end and includes a plurality of injection holes that inject a cooling medium onto the outer peripheral surface; and an end surface cooling portion that is disposed along an axial end surface of the coil end and includes a plurality of injection holes that inject the cooling medium onto the axial end surface.Type: GrantFiled: July 28, 2009Date of Patent: May 31, 2011Assignee: Aisin AW Co., Ltd.Inventors: Masayuki Takenaka, Yasunari Furuta
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Publication number: 20100045125Abstract: A rotary electric machine having a stator including a coil; and a cooling unit that cools a coil end of the coil, which projects in an axial direction of the stator, wherein the cooling unit includes: an outer periphery cooling portion that is disposed along an outer peripheral surface of the coil end and includes a plurality of injection holes that inject a cooling medium onto the outer peripheral surface; and an end surface cooling portion that is disposed along an axial end surface of the coil end and includes a plurality of injection holes that inject the cooling medium onto the axial end surface.Type: ApplicationFiled: July 28, 2009Publication date: February 25, 2010Applicant: AISIN AW CO., LTD.Inventors: Masayuki Takenaka, Yasunari Furuta