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公开(公告)号：US11885221B2
公开(公告)日：2024-01-30
申请号：US16282454
申请日：2019-02-22
Applicant: Joy Global Surface Mining Inc
Inventor： William J. Hren
Abstract: A mining machine includes a base having two drive tracks configured to rest on a ground surface and to move the mining machine along a first direction. The drive tracks each have a length along the first direction between a front end of the drive track and a rear end of the drive track. The mining machine further includes a carbody that extends between the two drive tracks, a turntable coupled to the carbody that defines an axis of rotation, and a stabilizer appendage coupled to the carbody. The stabilizer appendage extends forward from the carbody along the first direction and includes a roller or plate to contact the ground surface and provide stabilizing support during a digging operation. The axis of rotation is positioned closer to the front end of the drive tracks than the rear end of the drive tracks.
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公开(公告)号：US11885099B2
公开(公告)日：2024-01-30
申请号：US17286365
申请日：2019-10-15
Applicant: Caterpillar SARL
Inventor： Shuhei Orimoto , Koichi Kiyasu , Hiroshi Maeda
CPC classification number: E02F9/085 , E02F3/964 , E02F9/2267 , E02F9/2271 , E02F9/2282 , E02F9/2285 , F15B11/003 , F15B13/0401 , F15B15/202 , F15B2211/30515 , F15B2211/3127 , F15B2211/329
Abstract: To provide a drift-prevention valve device, a blade device, and a working machine capable of operating an actuated unit and preventing the machine body from drifting with a simple configuration. The drift-prevention valve device is provided with a non-return valve 41 that allows the flow of hydraulic oil from a control valve 28 to a head chamber 34h of a blade cylinder 34 and blocks the flow of the hydraulic oil in the reverse direction; and a piston accommodation part 42 separately disposed from an accommodation part 70 of the non-return valve 41, configured to movably accommodate a power piston 43. The power piston 43 defines a first piston chamber 42p1 communicating with a rod chamber of 34r of the blade cylinder 34 and a second piston chamber 42p2 for drain positioned on a poppet 71 side of the non-return valve 41 and communicating with a tank 52. The power piston 43 is connected to the poppet 71 of the non-return valve 41, so that the power piston 43 can be operated by the difference between the urging force of the poppet 71 by a spring 72 of the non-return valve 41 and a rod chamber pressure of the blade cylinder 34.
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公开(公告)号：US20240018747A1
公开(公告)日：2024-01-18
申请号：US18221842
申请日：2023-07-13
Applicant: Yanmar Holdings Co., Ltd.
Inventor： Kohei OKAZAKI
IPC: E02F9/22 , E02F9/08 , E02F9/16 , F15B1/26 , F15B21/0423
CPC classification number: E02F9/2203 , E02F9/0883 , E02F9/16 , E02F9/0866 , E02F9/0875 , E02F9/226 , F15B1/26 , F15B21/0423 , E02F9/2285 , E02F9/2292
Abstract: On a turn frame of an excavation machine, a hydraulic oil tank is placed in the center of a right engine chamber in the front-back direction, a control valve is placed in front of the hydraulic oil tank, a battery is further placed in front of the control valve, and a cool mechanism is placed behind the hydraulic oil tank. The control valve is supported by a support member, and a controller that outputs a signal for driving the control valve is mounted to a side plate part of the support member, thereby to be placed in a position in front of the control valve and above the battery.
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公开(公告)号：US20230417019A1
公开(公告)日：2023-12-28
申请号：US18215020
申请日：2023-06-27
Applicant: Yanmar Holdings Co., Ltd.
Inventor： Satoshi KITAHARA
CPC classification number: E02F9/207 , E02F9/0866
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. The partition plate, viewed from above, is positioned between the first heat exchanger and second heat exchanger, and the battery unit, and is positioned across the one direction.
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公开(公告)号：US20230417015A1
公开(公告)日：2023-12-28
申请号：US18036895
申请日：2021-11-30
Applicant: Yanmar Holdings Co., Ltd.
Inventor： Satoshi Kitahara , Jun Terashima
CPC classification number: E02F9/0866 , E02F9/0808 , E02F9/16
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.
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Patent Agency Ranking
公开(公告)号：US20230417014A1
公开(公告)日：2023-12-28
申请号：US18036892
申请日：2021-11-30
Applicant: Yanmar Holdings Co., Ltd.
Inventor： Satoshi Kitahara , Jun Terashima
CPC classification number: E02F9/0866 , E02F9/0883 , B60K11/06 , E02F9/16 , B60L50/60 , B60L9/00 , B60L2200/40 , E02F9/2225
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.
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公开(公告)号：US20230399814A1
公开(公告)日：2023-12-14
申请号：US18250624
申请日：2020-10-30
Applicant: HONDA MOTOR CO., LTD.
Inventor： Kentaro Sugimura
IPC: E02F9/08
CPC classification number: E02F9/0858 , E02F3/325
Abstract: A work vehicle includes an electric drive source, and a vehicle main body part to which a traveling part is provided. The vehicle main body part includes: a loading part that extends in a first direction and that can operate with respect to the vehicle main body part; and a removable battery storage unit that extends in a second direction which is the reverse direction of the first direction. The loading part loads an object to be loaded. The removable battery storage unit includes a storage section capable of storing a removable battery. An opening is formed in an upper part of the storage section. The opening is oriented upward, and an axis line along a battery attachment/removal direction of the storage section is inclined so as to be oriented in the first direction or the second direction.
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公开(公告)号：US20230392348A1
公开(公告)日：2023-12-07
申请号：US17833390
申请日：2022-06-06
Applicant: Caterpillar Inc.
Inventor： Dragos Marinescu , Brian C. Howson , Matthew J. Fritzke , Matthew T. Hansen
CPC classification number: E02F9/0858 , F16N7/38 , F16N25/00 , E02F9/0841 , F16N29/02 , E02F3/34
Abstract: A machine including a first kinematic joint, wherein the first kinematic joint is lubricated based on a first schedule and a second kinematic joint, wherein the second kinematic joint is lubricated based on a second schedule. The first schedule is different than the second schedule. A lubricant pump is configured to pump a lubricant and a distribution valve is in communication with the lubricant pump. The distribution valve has a first fluid outlet configured to supply the lubricant from the lubricant pump to the first kinematic joint and a second fluid outlet configured to supply the lubricant from the lubricant pump to the second kinematic joint.
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公开(公告)号：US20230358017A1
公开(公告)日：2023-11-09
申请号：US18116064
申请日：2023-03-01
Applicant: Liebherr-Werk Bischofshofen GmbH
Inventor： Georg GANITZER , Christoph KIEGERL , David SAGORZ , Birgit KAINZ , Peter KAINZ
IPC: E02F9/08
CPC classification number: E02F9/0866
Abstract: The present invention relates to a working machine having an engine room and a housing, wherein the housing at least partially surrounds or can surround the engine room, wherein a venting space, in which a line mouth of a line ends, is arranged on the housing, wherein the venting space is delimited from the engine room, preferably delimited in a gas-tight manner, and wherein the venting space is formed by a partial region of the housing and a bottom piece arranged in the engine room.
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公开(公告)号：US20230313500A1
公开(公告)日：2023-10-05
申请号：US18024619
申请日：2021-07-20
Applicant: KOMATSU LTD.
Inventor： Ippei SUZUKI , Kei SHINOHARA , Kiwa TAKEDA
CPC classification number: E02F9/24 , E02F9/261 , E02F9/0808 , E02F9/18 , E02F9/16 , G01S13/931 , G01S2013/93274 , G01S2013/93272
Abstract: A hydraulic excavator which is a work vehicle includes a traveling apparatus, a revolution frame mounted on the traveling apparatus and including a lower frame, and a first radar arranged on a side surface of the lower frame, the side surface of the lower frame extending in a fore/aft direction and being arranged on left and right, the first radar being provided at a position closer to a rear end portion of the lower frame.
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