Patents Assigned to YANMAR
  • Publication number: 20240003283
    Abstract: The present invention provides a work machine comprising an engine, an exhaust gas treatment device including a filter that catches particulate matter in exhaust gas discharged from the engine, and a display device that displays, when the filter is being regenerated through a rise in the temperature of the exhaust gas, the filter regeneration progress and a warning in association with the regeneration at the same time.
    Type: Application
    Filed: December 1, 2021
    Publication date: January 4, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Kazuki Tamura, Daisuke Kawaguchi, Shogo Suzuki
  • Publication number: 20240002024
    Abstract: A display device is provided for displaying an operating state of a hybrid system that drives a propulsion machine which propels a ship. The display device includes a display screen for displaying the operating state. The display screen includes symbols that represent constituent elements constituting the hybrid system, and linear sections that connect the plurality of symbols and change an illumination state according to an operating mode of the hybrid system.
    Type: Application
    Filed: November 11, 2021
    Publication date: January 4, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Toshiaki NAEGA, Ryohei CHIDA, Ryota IRISHIKA
  • Publication number: 20240004396
    Abstract: A position acquisition processing unit acquires positional information of a work vehicle. A halt acquisition processing unit acquires a halt instruction for a work of the work vehicle. A halt processing unit halts the work and travel of the work vehicle when the halt acquisition processing unit acquires the halt instruction. A calculation processing unit calculates a resumption position in which the work is to be resumed, on the basis of a halt instruction position indicating a position in which the halt instruction has been acquired, and a vehicle stop position indicating a position in which the work vehicle has stopped. A resumption processing unit moves the work vehicle to the resumption position calculated by the calculation processing unit and resumes the work.
    Type: Application
    Filed: October 21, 2021
    Publication date: January 4, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventor: Shiro Akamine
  • Publication number: 20240000013
    Abstract: A combine includes a control device configured to function as a travel route creation unit which creates a travel route in an operation region of a field, and an automatic operation control unit which controls automatic traveling and automatic reaping along the travel route. The travel route creation unit, when creating the travel route in which automatic reaping traveling is performed by reciprocal movement over a plurality of courses along a row direction in the operation region having a plurality of rows of the agricultural field, performs: calculates a recommended number of divisions of the operation region based on the size of the operation region, reaping information per one course of a reaping unit, and turning information according to a state between courses; divides the operation region into multiple divided regions based on the recommended number of divisions; and creates the travel route over the multiple divided regions.
    Type: Application
    Filed: October 27, 2021
    Publication date: January 4, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Hidetaka SUZUKI, Yuji YAMAGUCHI, Yasuto NISHII, Masaaki MURAYAMA
  • Publication number: 20240003121
    Abstract: The work machine control method includes actuating a first limiting unit, determining whether or not the first limiting unit has an abnormality, and actuating a second limiting unit based at least on a determination result of determining whether or not the first limiting unit has an abnormality. The first limiting unit limits a movement of a drive unit that drives a work machine. The second limiting unit limits the movement of the drive unit separately from the first limiting unit.
    Type: Application
    Filed: June 15, 2023
    Publication date: January 4, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Takanori Okamoto, Takashi Deguchi, Kazuki Tamura, Masashi Danguchi, Amir dawan Mohamad
  • Publication number: 20240004390
    Abstract: A route acquisition processing unit acquires a travel route for a work vehicle. A report processing unit provides a report of an inquiry as to whether or not automatic traveling of the work vehicle is to be started in the case when the travel route acquired by the route acquisition unit includes a first travel route that goes in a direction different from that of a detection area of an obstacle sensor installed in the work vehicle to detect obstacles around the work vehicle.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 4, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Takuya IWASE, Masaaki MURAYAMA
  • Patent number: 11859577
    Abstract: An engine device including a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing, the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: January 2, 2024
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Koki Kashiwa, Hiroaki Naganawa
  • Publication number: 20230417014
    Abstract: The present invention makes it possible to, in a configuration provided with electrical components such as an inverter device for controlling an electric motor, obtain a high degree of freedom with regard to the layout of the electrical components and efficiently place the electrical components in a limited space. An excavator comprises: an electric motor; a hydraulic fluid tank in which hydraulic fluid is stored; a hydraulic pump that is driven by the electric motor and supplies the hydraulic fluid within the hydraulic fluid tank to an actuator; and an inverter device that, with respect to the hydraulic fluid tank, is provided at a position away from a left-side surface part of the hydraulic fluid tank.
    Type: Application
    Filed: November 30, 2021
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Satoshi Kitahara, Jun Terashima
  • Publication number: 20230417015
    Abstract: In a configuration in which a battery unit for supplying power to an electric motor is provided, the present invention effectively suppresses the vibration of the battery unit using a simple and inexpensive configuration. The present invention comprises: an electric motor; a battery unit for supplying power to the electric motor; a lower-side vibration-damping support part that, with respect to an upper turning body in which the battery unit is installed, dampens the vibration of and supports the lower side of the battery unit; and an upper-side vibration-damping support part that, with respect to the upper turning body, dampens the vibration of and supports the upper side of the battery unit. The lower-side vibration-damping support part is provided to one side of the battery unit in the front-rear direction, and the upper-side vibration-damping support part is provided to the other side of the battery unit in the front-rear direction.
    Type: Application
    Filed: November 30, 2021
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Satoshi Kitahara, Jun Terashima
  • Publication number: 20230417019
    Abstract: A hydraulic excavator as an electric work machine includes: an electric motor, a battery unit that stores electric power for driving the electric motor, an electric component to which the electric power is supplied from the battery unit, a first heat exchanger that cools a refrigerant which passes through the battery unit, a hydraulic pump that is driven by the electric motor thereby to discharge a hydraulic oil, a second heat exchanger that cools the hydraulic oil, a fan that has a rotary shaft, and a partition plate. The electric component, viewed from above, is positioned between the fan and the battery unit. The first heat exchanger and the second heat exchanger, viewed from a direction of the rotary shaft, are positioned overlapping the fan, and are so positioned as to be displaced from each other in one direction intersecting the rotary shaft.
    Type: Application
    Filed: June 27, 2023
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventor: Satoshi KITAHARA
  • Publication number: 20230417022
    Abstract: A hydraulic excavator provided as an electric work machine includes an electric motor, an electric instrument connected to the electric motor via a power supply path, a first heat exchanger that cools a refrigerant passing through the electric instrument, a hydraulic pump driven by the electric motor and discharges a hydraulic oil, a second heat exchanger that cools the hydraulic oil, a fan, and first and second flow paths. The first flow path has a first flow path one-end-side opening at one end thereof. The second flow path has a second flow path one-end-side opening at one end thereof. The first flow path one-end-side opening is located at the flow path of wind generated by driving the fan and crossing the first heat exchanger. The second flow path one-end-side opening is located at the flow path of wind generated by driving the fan and crossing the second heat exchanger.
    Type: Application
    Filed: June 27, 2023
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventor: Satoshi KITAHARA
  • Publication number: 20230413727
    Abstract: On a straight advancing route in which a straight advancing vehicle speed is preset following a turning route in which a turning vehicle speed is preset, a traveling processor causes a combine to travel at a straight advancing vehicle speed if the distance of the straight advancing route is not less than a predetermined distance, and causes a combine to travel at a turning vehicle speed if the distance of the straight advancing route is less than the predetermined distance.
    Type: Application
    Filed: June 27, 2023
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Taishi TANAKA, Yuji Yamaguchi, Masaaki Murayama, Masafumi Saito
  • Publication number: 20230417027
    Abstract: A construction machine includes a measurement unit, a storage unit, and a notification unit. The measurement unit measures the number of times of drive of a starter. The storage unit stores the number of times of drive measured by the measurement unit and a reference value. The notification unit executes a notification process for providing notification of the drive status of the starter on the basis of the number of times of drive and the reference value. Preferably, the construction machine further comprises a comparison unit that compares the number of times of drive and the reference value. Preferably, the notification unit provides, in the notification process, notification of the result of the comparison by the comparison unit.
    Type: Application
    Filed: December 17, 2021
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Takashi Deguchi, Daisuke Kawaguchi
  • Publication number: 20230415611
    Abstract: The present invention discloses a configuration for cooling both an electric motor as a drive source and a device for supplying electric power to the electric motor using a cooling medium such as water with a view to achieving efficient cooling without any cost increase. The present invention comprises: an electric motor serving as a drive source; a power feeder for supplying electric power to the electric motor from outside; a cooling flow channel through which coolant water is circulated for cooling the electric motor and the power feeder; and a radiator which cools the coolant water flowing through the cooling flow channel.
    Type: Application
    Filed: November 30, 2021
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Kazuma Moriguchi, Jun Terashima, Satoshi Kitahara, Keishi Yamanaka, Kensuke Kaneda
  • Patent number: 11851841
    Abstract: A construction machine comprises a lower traveling body, an upper turning body, and a turning frame that constitutes the bottom portion of the upper turning body. The turning frame comprises a bottom plate, a first vertical plate and a second vertical plate, and a coupling member that divides the space between the first vertical plate and the second vertical plate. The coupling member includes a top plate and a front and rear pair of a front side plate and a rear side plate that extend downward from both ends of the top plate in the front to rear direction, and forms a box shape structure with the first vertical plate and the second vertical plate. The box shape structure has a first opening formed in the first vertical plate, a second opening formed in the second vertical plate, and a front engine support part formed in the top plate.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 26, 2023
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Kiyoshi Yonekura, Keiichi Nishihara
  • Publication number: 20230403976
    Abstract: A traveling processor causes a combine to perform an autonomous travel following a target route including a turning route in a field. An acquisition processor acquires a distance from a turning center point of the turning route to an edge of the field. A setting processor sets a speed of the combine on a turning route where the distance from the turning center point to the edge of the field is not more than a predetermined distance to a predetermined speed smaller than a speed of the combine on a turning route where the distance from the turning center point to the edge of the field exceeds the predetermined distance.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 21, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Taishi TANAKA, Yuji YAMAGUCHI, Kohei ISHIKAWA, Masaaki MURAYAMA
  • Publication number: 20230407604
    Abstract: The work machine control method includes displaying, on a display device, a display screen including information related to the work machine and executing at least one of a first switching process and a second switching process. The first switching process is a process in which the display screen to be displayed on the display device is switched, in accordance with switching from the enabled state to the disabled state according to an operation state of a disabling operation unit, from a camera screen that includes a captured image of a monitoring area around the work machine to a basic screen that does not include the captured image. The second switching process is a process in which the display screen to be displayed on the display device is switched, in accordance with switching from the disabled state to the enabled state according to the operation state of the disabling operation unit, from the basic screen to the camera screen.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 21, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Kazuki Tamura, Daisuke Kawaguchi
  • Publication number: 20230407602
    Abstract: This working vehicle includes: a monitor image acquisition unit for acquiring an image of surroundings of a working vehicle as a monitor image; an enlarged image generation unit for enlarging the monitor image to generate an enlarged image; a display unit for displaying at least one of the monitor image and the enlarged image; a single image switching-indication input unit for receiving an indication to switch a displayed image on the display unit between the monitor image and the enlarged image; and a display control unit for displaying the monitor image or enlarged image on the display unit according to the indication received by the single image switching-indication input unit.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 21, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Masashi Danguchi, Shogo Suzuki
  • Publication number: 20230407600
    Abstract: Provided is a work vehicle such as a hydraulic shovel comprising a monitoring unit that monitors the surroundings of the work vehicle, and a display unit that displays an image acquired by the monitoring unit. The display unit has an image display area in which the image is displayed, and an alarm information display area in which alarm information indicating the presence of an obstacle is displayed when the monitoring unit detects the presence of the obstacle. In the display unit, the alarm information display area is located outside the image display area.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 21, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Masashi Danguchi, Shogo Suzuki
  • Publication number: 20230406474
    Abstract: [Problem] There is provided an exhaust system capable of sufficiently exhausting a fuel leakage gas leaked from a marine internal combustion engine without diffusing the fuel leakage gas into an engine room. [Solution] An exhaust system according to an aspect of the present disclosure includes: an exhaust duct provided above a marine internal combustion engine installed in an engine room of a ship; and a suction fan that sucks a fuel leakage gas leaking from the marine internal combustion engine into the inside of the exhaust duct from an engine upper unit side of the marine internal combustion engine. The exhaust duct exhausts the fuel leakage gas sucked by the suction fan to the outside of the engine.
    Type: Application
    Filed: May 15, 2023
    Publication date: December 21, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Kazuhisa ITO, Yoshinori FUKUI, Shunji Hamaoka, Hiroshi Uehara, Masato Nakai