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    Liquid-cooled motor
    1.
    发明授权
    Liquid-cooled motor 有权

    公开(公告)号：US11936280B2

    公开(公告)日：2024-03-19

    申请号：US17341902

    申请日：2021-06-08

    Applicant: KUBOTA CORPORATION

    Inventor： Sumio Yagyu

    IPC: H02K5/20 ,  H02K9/193

    CPC classification number: H02K9/193 ,  H02K5/203

    Abstract: A water jacket is attempted to include a means to provide high heat transfer between coolant and a side wall of a cooling passage to increase a heat transfer capacity thereof. A liquid-cooled motor includes a motor case, a motor provided in the motor case, a motor housing provided in the motor case, and a water jacket provided in the motor housing, the water jacket having a circular shape to allow coolant to flow in a circumferential direction. The water jacket includes a cooling passage in which the coolant flows, the cooling passage having a passage width reduced gradually, a coolant supply port to supply the coolant to the cooling passage, and a coolant drain port to drain the coolant from the cooling passage.

    Spreading device
    2.
    发明授权
    Spreading device 有权

    公开(公告)号：US10582657B2

    公开(公告)日：2020-03-10

    申请号：US15992183

    申请日：2018-05-30

    Applicant: Kubota Corporation

    Inventor： Sumio Yagyu ,  Takao Nakagawa ,  Masaru Kawane

    IPC: A01C19/02 ,  A01C23/00 ,  A01C17/00 ,  F16H3/72

    Abstract: A spreading device includes a containing unit to contain a spread material, a first spreading unit including a first rotating body to spread the spread material contained in the containing unit, a second spreading unit including a second rotating body to spread the spread material contained in the containing unit, a first driving source of which speed is changeable, a first shaft to transmit power provided from the first driving source, a second shaft to transmit power provided from a second driving source different from the first driving source, and a power transmission mechanism to receive power from the first shaft and power from the second shaft, the power transmission mechanism being capable of transmitting the power received from the first shaft and the power received from the second shaft to the first rotating body and the second rotating body.

    Spreader device
    4.
    发明授权
    Spreader device 有权

    公开(公告)号：US11963474B2

    公开(公告)日：2024-04-23

    申请号：US16728025

    申请日：2019-12-27

    Applicant: KUBOTA CORPORATION

    Inventor： Sumio Yagyu ,  Takao Nakagawa ,  Masaru Kawane ,  Piet Jan Van Der Marel

    IPC: A01C19/02 ,  A01C17/00 ,  A01C15/00

    CPC classification number: A01C19/02 ,  A01C17/005 ,  A01C15/006 ,  A01C15/008

    Abstract: A spreader device includes a container to contain spread substance, a first spreader portion having a first rotor to spray the spread substance contained in the container, a second spreader portion having a second rotor to spray the spread substance contained in the container, a first driver source to drive the first rotor, a first shaft to transmit a driving force outputted from the first driver source, a second shaft to transmit a driving force outputted from a second driver source different from the first driver source, and a selection transmitter portion to selectively transmit the driving force form the first shaft and the driving force from the second shaft to the first rotor or the second rotor.

    Work management system and work management method
    5.
    发明授权
    Work management system and work management method 有权

    公开(公告)号：US11273834B2

    公开(公告)日：2022-03-15

    申请号：US16728039

    申请日：2019-12-27

    Applicant: KUBOTA CORPORATION

    Inventor： Sumio Yagyu ,  Takao Nakagawa ,  Masaru Kawane ,  Piet Jan Van Der Marel

    IPC: B60W30/18 ,  B60K25/06 ,  E02F9/20 ,  B60W30/188 ,  B60K25/00

    Abstract: A work management system includes a generator attached to a structure body that is provided to a transmission case of a working machine, configured to be driven by power transmitted from a PTO shaft, and configured to transmit power to a working device provided in the working machine, an information obtaining portion configured to obtain operation information representing operation of the working device that is activated by the power from the generator, a work management portion configured to manage working of the working device based on the operation information obtained by the information obtaining portion, and a controller portion configured to control the working device based on the operation information obtained by the information obtaining portion.

    Working device and working machine having the same
    6.
    发明授权
    Working device and working machine having the same 有权

    公开(公告)号：US11214152B2

    公开(公告)日：2022-01-04

    申请号：US16910644

    申请日：2020-06-24

    Applicant: KUBOTA CORPORATION

    Inventor： Yukifumi Yamanaka ,  Sumio Yagyu ,  Go Takaki

    IPC: B60L50/16 ,  A01C19/02 ,  A01B71/06 ,  B60K25/06 ,  B60L1/00

    Abstract: A working device connected to a traveling vehicle having a prime mover and configured to perform an agricultural work, includes: a working portion to perform an agricultural work; an electric motor to be driven by electric power; a power transmission mechanism to which power generated by the electric motor is inputted, configured to transmit the power to the working portion; a regeneration resistor to consume a regenerative power generated in the electric motor; a switch portion to switch, between a connecting state and a shut-off state, a state established between the electric motor and the regeneration resistor; and a controller portion to control driving of the electric motor and switching of the switch portion.

    Generator unit and working machine
    7.
    发明授权
    Generator unit and working machine 有权

    公开(公告)号：US11497155B2

    公开(公告)日：2022-11-15

    申请号：US16910669

    申请日：2020-06-24

    Applicant: KUBOTA CORPORATION

    Inventor： Sumio Yagyu ,  Takashi Uchida ,  Yukifumi Yamanaka ,  Go Takaki

    IPC: H02K7/18 ,  A01B71/00 ,  A01C19/00 ,  B60K25/00 ,  B62D49/06 ,  H02K5/22 ,  A01F15/08 ,  A01M7/00 ,  A01M9/00

    Abstract: A generator unit to be attached to a traveling vehicle that has a prime mover and a PTO shaft to transmit power from the prime mover, includes: a generator; an input shaft having: a first connector portion configured to be connected to the PTO shaft; and a second connector portion configured to be connected to a working device to be connected to the traveling vehicle; a transmitter mechanism to transmit, to the generator, power supplied from the PTO shaft, the power being inputted from the first connector portion to the input shaft; and an attachment frame having: an attachment portion to which the generator, the input shaft, and the transmitter mechanism are attached; and a mounting portion configured to be mounted to the traveling vehicle.

    Parallel hybrid power transmission mechanism
    8.
    发明授权
    Parallel hybrid power transmission mechanism 有权

    公开(公告)号：US11015657B2

    公开(公告)日：2021-05-25

    申请号：US16003660

    申请日：2018-06-08

    Applicant: KUBOTA CORPORATION

    Inventor： Sumio Yagyu ,  Kazuto Okazaki

    IPC: F16D3/78 ,  B60K6/485 ,  F16H33/02 ,  B60K6/26 ,  F16D1/06 ,  F16D3/52 ,  H02K7/00 ,  B60K6/40 ,  B60K6/48 ,  B60K6/405

    Abstract: A parallel hybrid power transmission mechanism includes a crank shaft, a driven device to which a power of an engine and/or a motor generator is transmitted, an input shaft disposed on the driven device, a flywheel connected to the crank shaft, and a rotor disposed on the motor generator, including a first connecting portion connected to an outside of the flywheel. The rotor is configured to supply and receive a rotational power to and from the flywheel through the first connecting portion. The parallel hybrid power transmission mechanism further includes a coupling arranged independently from the rotor, including a second connecting portion connected to an inside of the flywheel, the coupling being configured to receive the rotational power of the flywheel through the second connecting portion, and an intermediate shaft connecting the coupling and the input shaft to each other, the intermediate shaft being configured to transmit the rotational power received by the coupling to the input shaft.

    Fluid cooled motor and cooling device using thereof
    10.
    发明授权
    Fluid cooled motor and cooling device using thereof 有权

    公开(公告)号：US11621597B2

    公开(公告)日：2023-04-04

    申请号：US17065803

    申请日：2020-10-08

    Applicant: KUBOTA CORPORATION

    Inventor： Sumio Yagyu

    IPC: H02K1/32 ,  H02K9/19

    Abstract: A fluid cooled motor includes a stator, a rotor disposed in the stator rotatably in a circumferential direction, and a stator coil wound on the stator, the stator coil having coil ends extending in an axial direction perpendicular to the circumferential direction. The rotor has a rotor core and annular end plates fixed to axial ends of the rotor core, the annular end plates opposing to the coil ends of the stator coil and being rotatable with the rotor in the circumferential direction. Each of the end plates includes a plurality of flow passages to guide a cooling fluid from an inlet to an outlet thereof in a radially outward direction. Each of the flow passages extends from the inlet to the outlet, and inclines or curves to a direction opposite to a rotation direction of the rotor with respect to a radial direction.

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