Patents Assigned to YANMAR POWER TECHNOLOGY CO., LTD.
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Patent number: 11274931Abstract: A route generating system in which a work vehicle setting unit sets a vehicle information on a tractor. An altitude information obtaining unit of the route generating system obtains an altitude information on a field where an autonomous travel route is to be generated, and a traveling direction setting unit thereof sets a traveling direction of the tractor in the field. A region setting unit of the route generating system sets, in the field, a plurality of regions including a work region where autonomous work paths in parallel with the traveling direction are generated and headlands where connection paths each connecting corresponding ones of the autonomous work paths are generated. The region setting unit sets the widths of the headlands (headland widths) based on the vehicle information, the altitude information, and the traveling direction, the widths of the headlands extending in parallel with the traveling direction.Type: GrantFiled: November 22, 2017Date of Patent: March 15, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventor: Toshifumi Hiramatsu
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Publication number: 20220074163Abstract: A hydraulic shovel is provided with a lower travelling body and an upper revolving body revolvably disposed on the lower travelling body. The hydraulic shovel is also provided with a motor disposed on the upper revolving body for driving the hydraulic shovel, a first battery unit disposed on the upper revolving body, a second battery unit disposed on the lower travelling body, and a power supplier that supplies external power to the first battery unit and the second battery unit.Type: ApplicationFiled: November 20, 2019Publication date: March 10, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventors: Jun Terashima, Kensuke Kaneda
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Publication number: 20220074330Abstract: An engine that suppresses damage on a support mechanism of a diesel particulate filter (DPF) due to vibration in the pitch direction, in which the DPF, which purifies exhaust gas from an exhaust manifold, is disposed in an orientation orthogonal or approximately orthogonal to a rotational axis of a crankshaft in a plan view. A support mechanism is provided, which enables a cylinder head, an intake manifold, and an intake collector to support the DPF. The support mechanism includes a first support position in which the cylinder head supports the DPF, a second support position in which the intake manifold supports the DPF, and a third support position in which the intake collector supports the DPF. The third support position deviates from the first support position and the second support position in a direction of the rotational axis of the crankshaft.Type: ApplicationFiled: November 17, 2021Publication date: March 10, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventor: Shinji Nishimura
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Patent number: 11255822Abstract: A system for monitoring fruit growth including: a vibration exciter that imparts predetermined vibration to a stem or a branch between a fruit and a stalk growing on a plant; a vibration sensor that detects vibration of the stem or the branch caused by the vibration imparted by the vibration exciter; and a detector that detects a weight or weight change of the fruit based on a frequency of the vibration detected by the vibration sensor.Type: GrantFiled: July 19, 2018Date of Patent: February 22, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Toru Takemoto, Akio Ishii
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Publication number: 20220050458Abstract: A travel route determination system including: a route generating unit generating planned travel routes including work routes along which a work vehicle performs autonomous travel; a control unit capable of causing the work vehicle to perform autonomous travel along the planned travel routes; an information obtaining unit obtaining position information and orientation information on the work vehicle; and a determination unit determining an autonomous travel candidate route at which the work vehicle can start autonomous travel, before the work vehicle starts autonomous travel. The determination unit sets a candidate determination region based on the position information and orientation information on the work vehicle, and the determination unit determines, among the work routes, a work route in the candidate determination region as the autonomous travel candidate route.Type: ApplicationFiled: October 27, 2021Publication date: February 17, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventor: Yasuto Nishii
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Publication number: 20220049663Abstract: An engine includes an exhaust manifold, an intake manifold, and an EGR device configured to supply EGR gas from the exhaust manifold to the intake manifold. An EGR cooler is provided at a side of the exhaust manifold, and a longitudinal direction of the EGR cooler is in an up-down direction of the engine in a used state.Type: ApplicationFiled: October 28, 2021Publication date: February 17, 2022Applicant: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Yu Matsui, Masato Kishiura
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Patent number: 11248541Abstract: An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane (P1) including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.Type: GrantFiled: January 26, 2021Date of Patent: February 15, 2022Assignee: Yanmar Power Technology Co., Ltd.Inventors: Katsuhiro Nishimura, Koichi Hirose
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Publication number: 20220030920Abstract: Provided is a technique which enables highly efficient, low-cost production of a sufficiently disinfected high-quality rice gel using a rice gel production system and a rice gel production method for producing a rice gel. The present invention is provided with: a heating/stirring unit for heating a rice material with water added thereto in a sealed container under stirring, thereby providing a gelatinized product; and a pulverizing unit for pulverizing the gelatinized product obtained in the heating/stirring unit thereby providing a rice gel.Type: ApplicationFiled: September 24, 2019Publication date: February 3, 2022Applicant: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Kuniyasu Tsuchiya, Shuhei Noda, Yuki Otani, Chisa Yamashita
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Patent number: 11235713Abstract: A tractor in which a basic shape of a hot-wind blocking plate disposed between a motor unit and an operation unit is commonalized as a sharable element, and cutting of an outer edge portion of the hot-wind blocking plate enables application to various specifications including different sizes of motors and operation units, thus achieving convenience in assembling the tractor, enabling mass production by using the sharable element, enabling an efficient inventory storage, and providing an advantage in costs. The tractor includes: a hot-wind blocking plate disposed between a motor unit and an operation unit, the dimension of the hot-wind blocking plate being adjustable by cutting an outer edge portion of the blocking plate; and an operation unit component mounted in the outer edge portion of the hot-wind blocking plate, a position where the operation unit component is mounted is changeable depending on a specification of the operation unit.Type: GrantFiled: February 26, 2020Date of Patent: February 1, 2022Assignee: YANMAR POWER TECHNOLOGY CO. LTD.Inventors: Toshitaka Komiya, Yutaka Matsui, Tomoyuki Kuroda
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Patent number: 11236487Abstract: A rotary working vehicle is provided with: a lower traveling body; an upper rotating body; a rotating frame constituting the bottom of the upper rotating body; a boom bracket supported by the rotating frame so as to be capable pivoting horizontally; a first vertical plate and a second vertical plate, which are raised from the bottom plate of the rotating frame; a swing cylinder provided on the opposite side of the second vertical plate from the first vertical plate and connecting the rotating frame and the boom bracket; a protrusion piece protruding toward the swing cylinder from a side wall of the second vertical plate above the swing cylinder; a hose guide provided to the protrusion piece; and first and second hydraulic hoses which pass above the first vertical plate and the second vertical plate, extend downward from above through the hose guide, and reach the swing cylinder.Type: GrantFiled: June 4, 2019Date of Patent: February 1, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Mitsuyuki Hatanaka, Takahiro Ikeda
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Patent number: 11234356Abstract: Provided are a work region setting portion which sets, within a traveling region, a work region for a working vehicle to perform predetermined work; and a traveling route setting portion which sets, within the traveling region, a target traveling route to make the working vehicle travel automatically. The traveling route setting portion includes: an initial route generation portion which generates an initial route based on a trajectory formed by the working vehicle traveling in the traveling region; a work route generation portion which generates work routes arranged in a parallel arrangement direction orthogonal to an extension direction; and a connection route generation portion which generates connection routes connecting, at either side of the work region, routes adjacent in the parallel arrangement direction among the initial route and the work routes. The target traveling route including the initial route, the work routes, and the connection routes is thereby set.Type: GrantFiled: October 22, 2018Date of Patent: February 1, 2022Assignee: Yanmar Power Technology Co., Ltd.Inventor: Yasuto Nishii
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Publication number: 20220022361Abstract: This autonomous travel system is provided with a farm field acquisition unit, a reference auxiliary line creation unit, an adjacent auxiliary line creation unit, and a travel control unit. The farm field acquisition unit acquires information regarding a farm field that includes a work area and a headland area. The reference auxiliary line creation unit creates first reference auxiliary lines within the headland area at positions spaced apart from the farm field peripheral edge on the inner side thereof by a first reference interval. The adjacent auxiliary line creation unit creates, at each of auxiliary line intervals, first adjacent auxiliary lines at positions spaced apart from the first reference auxiliary lines on the inner sides thereof.Type: ApplicationFiled: October 4, 2019Publication date: January 27, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventors: Kohei OGURA, Yasuto NISHII, Taiki SHIRAFUJI
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Publication number: 20220028278Abstract: According to the present invention, a route controller generates a route that makes a ship dock at a berthing facility. The route includes a first location and a second location (P2). The first location is a via point that is offset a prescribed distance in a direction that is orthogonal to the direction in which the berthing facility is oriented from a docking point for the ship at the berthing facility. The second location is the docking point for the ship at the berthing facility. The first location is immediately before the second location in the sequence to be realized by the ship. The route is generated such that the ship remains oriented in the direction in which the berthing facility is oriented as the ship moves from the first location to the second location.Type: ApplicationFiled: November 26, 2019Publication date: January 27, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventors: Naohiro Hara, Tomoya Fukukawa, Yuichiro Dake
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Publication number: 20220018279Abstract: Provided is a pre-chamber type diesel engine in which fuel injected from an injector mixes satisfactorily with air in a pre-combustion chamber. An injector injects fuel so as to be dispersed in a direction orthogonal to a vortex flow of air formed inside a pre-combustion chamber.Type: ApplicationFiled: October 24, 2019Publication date: January 20, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventors: Go ASAI, Gin MORITA, Kazuya MATSUKI
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Patent number: 11225149Abstract: An excavator comprising: a power supply that converts AC power supply voltage from a commercial power supply into DC power supply voltage; a battery that charges or discharges power from the power supply; an inverter that converts DC power supply voltage to AC power supply voltage; an electric motor that has power supplied thereto, and is controlled, by the inverter; a first electrical circuit that supplies power to the inverter from the power supply; a second electrical circuit that joins from the battery to the first electrical circuit; an inverter relay arranged between the inverter and a junction point between the first electrical circuit and the second electrical circuit; a battery relay arranged between the junction point and the battery; and a power supply relay arranged between the junction point and the power supply.Type: GrantFiled: April 15, 2019Date of Patent: January 18, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Kensuke Kaneda, Jun Terashima
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Publication number: 20220010721Abstract: Provided is a pre-chamber type diesel engine in which fuel injected from an injector mixes satisfactorily with air in a pre-combustion chamber. A corner space section, in which a forced vortex is formed by a flow of air advancing into a pre-combustion chamber from a main combustion chamber via a connecting hole during the compression stroke of a piston, is provided at a prescribed position between the line of extension of the connecting hole and the wall surface of the pre-combustion chamber.Type: ApplicationFiled: October 24, 2019Publication date: January 13, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventors: Go ASAI, Gin MORITA, Kazuya MATSUKI
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Publication number: 20220001942Abstract: Provided is a traveling vehicle which is configured to be manually operable and to be capable of being prevented from collision, and which can be assembled more easily. This traveling vehicle is provided with a traveling vehicle body on which a first control unit for controlling traveling is mounted, and an operation unit which enables the manual operation of the traveling vehicle body. The operation unit is provided with a housing having a connection section removably connected to the traveling vehicle body. The housing is integral with manual operation sections enabling an input of instructive information for traveling into the first control unit, and also with an obstacle sensor for detecting an obstacle present in the direction of movement of the vehicle body and transmitting the result of detection to the first control unit.Type: ApplicationFiled: August 27, 2019Publication date: January 6, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventor: Hideaki Aoki
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Publication number: 20220001970Abstract: A control target controller generates control targets in accordance with a route, the control targets being for controlling the location and orientation of a ship. The route has a plurality of via points. Each of the via points has information about a target location and a target orientation for the ship. The route is made up of a plurality of partial routes that sequentially connect the target locations of the via points. The control target controller comprises a transit target point generation part and an arrival determination part. The transit target point generation part can generate, as control targets, transit target points that are in the middle of the partial routes and have information about a target location and a target orientation for the ship. On the basis of the current location and the current orientation of the ship, the arrival determination part determines whether the ship has arrived at the transit target points.Type: ApplicationFiled: November 26, 2019Publication date: January 6, 2022Applicant: Yanmar Power Technology Co., Ltd.Inventors: Naohiro Hara, Tomoya Fukukawa, Yuichiro Dake
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Patent number: 11215370Abstract: A heat pump system includes a first heat pump and a second heat pump. The first heat pump includes a first outdoor unit. The first outdoor unit includes a compressor, an outdoor-unit connecting pipe, and a refrigerant filling port. The outdoor-unit connecting pipe connects an intake path of the compressor and a second outdoor unit of the second heat pump for supplying a refrigerant to the second outdoor unit of the second heat pump. The refrigerant filling port is provided in a portion of the outdoor-unit connecting pipe.Type: GrantFiled: October 29, 2019Date of Patent: January 4, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Hideshi Okada, Norihiro Okuda, Tomoya Yoshimura
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Publication number: 20210396188Abstract: This engine includes an EGR device. The engine is provided with: an EGR gas temperature sensor; an EGR valve; an EGR control unit; an EGR valve position detection unit; a diagnosis unit; a first timer; a second timer; and a diagnosis control unit. The diagnosis unit diagnoses whether the EGR gas temperature sensor has failed, on the basis of a detected value from the EGR gas temperature sensor. The first timer, when the EGR valve is open, performs counting in accordance with the passage of time. The second timer, if a count value of the first timer is greater than or equal to a first threshold value set in advance, and if a predetermined condition is satisfied, performs counting in accordance with the passage of time. The diagnosis control unit prohibits diagnosis by the diagnosis unit if a count value of the second timer is less than a second threshold value set in advance, and permits the diagnosis if the count value is greater than or equal to the second threshold value.Type: ApplicationFiled: August 21, 2019Publication date: December 23, 2021Applicant: Yanmar Power Technology Co., Ltd.Inventors: Yuki KAKICHI, Shohei SASAKI