Patents Assigned to JATCO Ltd
  • Publication number: 20240035559
    Abstract: A device includes a case; a first rotating body that has at least a part immersed in the oil in an oil bath; a second rotating body disposed in the case at a position not immersed in the oil in the oil bath; a plate; a first wall portion provided on the plate between the first rotating body and the second rotating body; a second wall portion provided above the first wall portion in a gravity direction and extending toward a direction away from the first rotating body; and a fourth wall portion provided between the first rotating body and the second rotating body and extending in a vertical direction on the plate, wherein the first wall portion is provided on a first rotating body side of the plate, and the fourth wall portion is provided on a second rotating body side of the plate.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 1, 2024
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventor: Akira TSUCHIDA
  • Publication number: 20240026963
    Abstract: A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a pump that sucks oil through a pump inlet; and a box that includes a first chamber accommodating the gear mechanism and a second chamber provided with the pump inlet.
    Type: Application
    Filed: September 8, 2021
    Publication date: January 25, 2024
    Applicant: JATCO Ltd
    Inventor: Masumi FUJIKAWA
  • Publication number: 20240027145
    Abstract: An apparatus includes a case including a heat exchange unit; an inflow port through which a fluid flows into the heat exchange unit; and a discharge port through which the fluid is discharged from the heat exchange unit. In the case, the inflow port and the discharge port are opened in a facing surface facing a component to which the apparatus is assembled, the inflow port is disposed to face a fluid outlet of the component, and a partition wall that separates an inflow port side and a discharge port side is provided on the facing surface.
    Type: Application
    Filed: February 24, 2021
    Publication date: January 25, 2024
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Toshikazu SUZUKI, Giljo JUNG
  • Publication number: 20240026964
    Abstract: An apparatus includes a case that stores oil inside, wherein the case includes a drain hole that discharges the oil to an outside, and a tubular portion that protrudes in a direction intersecting a direction of gravity, and the drain hole opens in a direction intersecting the direction of gravity on the tubular portion.
    Type: Application
    Filed: October 20, 2021
    Publication date: January 25, 2024
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventor: Tsutomu ITOU
  • Patent number: 11858352
    Abstract: A vehicle includes a case member, a stay member and a rib. The case member is supported by a frame of a vehicle body with a mount member being interposed. The stay member is suspended between a boss part of the case member and a member of a case member side in the mount member, a longitudinal direction of the stay member intersecting a longitudinal direction of the frame. The rib extends in the case member in a direction that is an extension of the longitudinal direction of the stay member at a root of the boss part.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: January 2, 2024
    Assignees: Jatco Ltd, Nissan Motor Co., Ltd.
    Inventors: Kazuya Numata, Satoru Naruoka, Yusuke Ienaka, Kazuhiro Nishimura, Taku Maezono, Tatsuya Kumagai, Yutaka Okumura
  • Patent number: 11859707
    Abstract: A power transmission device includes a motor, a planetary gear mechanism having a portion that overlaps the motor in an axial direction, an axial direction wall part having a portion positioned between the planetary gear mechanism and the motor, a plate provided between the axial direction wall part and a pinion gear having the gear mechanism, and a box in which the motor, the planetary gear mechanism, the axial direction wall part, and the plate are housed. The box defines a breather hole that communicates with a breather chamber. The box has a radial direction wall part having a portion positioned between the plate and the breather chamber in a radial direction. The plate has a portion positioned between the pinion gear and the breather hole.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: January 2, 2024
    Assignee: Jatco Ltd
    Inventors: Yusuke Suzuki, Takayoshi Urushibata, Kenjiro Yasui
  • Patent number: 11859714
    Abstract: A power transmission device includes a power transmission mechanism, an oil pump, a first electric wire, a controller and a control unit. The power transmission mechanism is arranged in a first chamber. The oil pump is arranged in a second chamber. The control unit is connected with the controller via the first electric wire. The first electric wire is provided inside the second chamber, and is arranged at a position that does not overlap with the oil pump when viewed along a first direction that is a direction facing from the oil pump to the controller.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: January 2, 2024
    Assignees: Jatco Ltd, Nissan Motor Co., Ltd.
    Inventors: Hirohisa Yukawa, Katsunori Yamashita, Hideyuki Mamiya
  • Patent number: 11852226
    Abstract: An oil passage structure, includes a first tubular member configured to externally fit on a support wall portion and a second tubular member configured to internally fit in the support wall portion and supports an outer periphery of the shaft. An oil passage along a rotation axis direction of the shaft is provided at at least one of a location between the support wall portion and the first tubular member and a location between the support wall portion and the second tubular member.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: December 26, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventor: Tomoo Ikeda
  • Patent number: 11841075
    Abstract: The oil storage structure includes an oil pan that closes a lower opening of the transmission case and forms an oil pool in a lower space inside the transmission case, and a strainer having a suction port for oil located in the oil pool. The suction port for the oil is provided so as to face a bottom wall portion of the oil pan with a gap in between, and the bottom wall portion of the oil pan is provided with a protruding portion protruding toward the suction port, with the protruding portion being formed in a direction across the suction port as viewed from the bottom wall portion.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 12, 2023
    Assignee: JATCO LTD
    Inventors: Hyungho Oh, Yongwoo Jeon, Solae Gim, Taekjin Lee, Jaeyoung Kim, Jaemin Seo, Yonghun Yoon
  • Patent number: 11835123
    Abstract: An oil strainer is arranged between an oil pan configured to close a lower opening of a transmission case and a control valve body which is installed in the lower opening. The control valve body has a discharge hole of oil in a portion opposing the oil strainer. The oil strainer has an oil suction port in a portion opposing the oil pan, and has a rib projecting on the control valve body side on a surface of a portion opposing the control valve body. When seen from the oil pan side, the oil suction port and the discharge hole are provided so that positions are not matched from each other. When seen from the oil pan side, the rib is provided to cross a straight line passing through the oil suction port and the discharge hole in a region between the oil suction port and the discharge hole.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: December 5, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventor: Isao Yabuzaki
  • Patent number: 11835134
    Abstract: A continuously variable transmission includes: a fix pulley; a slide pulley: an endless annular member sandwiched by the fix pulley and the slide pulley; a cylinder member which is fixed to the fix pulley, and which includes a cylinder cylindrical portion constituting a wall of a pulley pressure receiving chamber; and a stopper member disposed at a position at which the stopper member is abutted on the cylinder member when a hydraulic pressure which is equal to or greater than a predetermined value is supplied to the pulley pressure receiving chamber.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 5, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventor: Atsushi Kuroki
  • Patent number: 11821513
    Abstract: A power transmission device includes a bearing, a differential mechanism, a case that houses the differential mechanism, a pinion gear supported by the case, a wall part that overlaps the case in an axial direction, a plate that is provided between the wall part and the case in the axial direction, and that supports the case with the bearing being interposed, and a parking pawl that is rotatably fixed to the plate in a position that overlaps the plate in the axial direction.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: November 21, 2023
    Assignee: Jatco Ltd
    Inventor: Toshikazu Oshidari
  • Patent number: 11821512
    Abstract: A park lock mechanism configured to restrict or allow a rotation of a rotating shaft includes a park pole configured to restrict the rotation of the rotating shaft and having a first inclined surface, and a park wedge having a second inclined surface capable of abutting on the first inclined surface and configured to move the park pole to a lock position that restricts the rotation of the rotating shaft, in which the park pole includes a protrusion protruding from a first side surface on a park wedge side in a moving direction of the park wedge, and the protrusion is formed so as to be continuous with the first inclined surface, and has a third inclined surface capable of abutting on the second inclined surface.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 21, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Hitoshi Nakata, Toshihiko Watanabe
  • Patent number: 11815177
    Abstract: The transmission controller is configured to, when the received range position signal indicates that the range position is switched from a travelling range to a neutral range during travelling, output an instruction to disengage all of friction elements that are in an engaged state in the travelling range, output an instruction to at least one friction element before the instruction to disengage all of the friction elements that are in the engaged state in the travelling range is output, confirm a change in a rotation speed of a transmission input shaft after the instruction to disengage is output to the at least one friction element, and when there is no change in the rotation speed, diagnose that the friction element instructed to be disengaged is in an erroneously engaged state in which the friction element is not able to be disengaged.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 14, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Norihira Amano, Masahiro Hamano
  • Patent number: 11808349
    Abstract: The control device is configured to supply an offset current value to disengagement solenoids of disengagement-side friction engaging elements among a plurality of shift solenoids that control respective shift oil pressures applied to the plurality of friction engaging elements, and when a current gear position is a first speed position or a reverse position, decrease a current value to be supplied to at least one of the disengagement solenoids that are supplied with the offset current value to be lower than the offset current value.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: November 7, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventor: Takuya Takamura
  • Publication number: 20230349459
    Abstract: A lid component is arranged to face an electric oil pump. The lid component includes an accommodation groove that accommodates at least a part of the electric oil pump on a surface side from which a lid-side connector protrudes.
    Type: Application
    Filed: June 2, 2021
    Publication date: November 2, 2023
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Moe HIDAKA, Yasuhiro YOSHIDA, Toshiyuki FUJII
  • Publication number: 20230323940
    Abstract: An apparatus includes a heat exchanger, a power transmission mechanism, a lubricating oil passage that is located downstream of the heat exchanger and guides lubricating oil to the power transmission mechanism, and a drain oil passage that is located downstream of the heat exchanger and drains the lubricating oil.
    Type: Application
    Filed: October 25, 2021
    Publication date: October 12, 2023
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Akira KAKIMI, Tomoo IKEDA
  • Publication number: 20230323946
    Abstract: A valve arrangement structure of a control valve unit includes a control valve body to which oil is supplied from a main pump. The valve arrangement structure includes a pressure regulator valve that is arranged in the control valve body and regulates a pressure of discharged oil from the main pump to a line pressure, a pressure control valve that is arranged in the control valve body and regulates the pressure of the oil to a required pressure with the line pressure as a source pressure, and a first oil passage that is provided in the control valve body and connects the main pump and the pressure regulator valve. The pressure control valve is arranged on a second oil passage branched from the first oil passage.
    Type: Application
    Filed: September 21, 2021
    Publication date: October 12, 2023
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventor: Hisao NOBU
  • Publication number: 20230323945
    Abstract: A hydraulic control circuit includes a pressure regulator valve, a first pilot valve, a second pilot valve, and a third pilot valve. A first pilot pressure is introduced as a source pressure into the primary solenoid valve that generates a primary signal pressure and a secondary solenoid valve that generates a secondary signal pressure. A second pilot pressure is introduced as a source pressure into a lock-up solenoid valve that generates the lock-up signal pressure. A third pilot pressure is introduced as a damping pressure into a primary regulator valve that controls a primary pulley pressure according to the primary signal pressure, and into a secondary regulator valve that controls a secondary pulley pressure according to the secondary signal pressure.
    Type: Application
    Filed: September 21, 2021
    Publication date: October 12, 2023
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventor: Hisao NOBU
  • Publication number: 20230313878
    Abstract: A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a pump that sucks oil through a pump inlet; and a box that accommodates the motor and the gear mechanism. The pump inlet is provided on an inner wall of the box.
    Type: Application
    Filed: September 8, 2021
    Publication date: October 5, 2023
    Applicant: JATCO Ltd
    Inventor: Masumi FUJIKAWA