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1. 发明授权

US11639738B2 Bearing device and construction machine 有权
公开(公告)号：US11639738B2
公开(公告)日：2023-05-02
申请号：US17266869
申请日：2019-08-05
申请人： Caterpillar SARL
发明人： Seiji Iijima , Naoki Miyata , Kazufumi Nishimoto , Yasunori Komatsubara , Yuma Yabuki
IPC分类号： F16C33/74 , E02F9/00 , F16C11/04
摘要： To provide a bearing device which can ensure the sealing performance by using floating seal to eliminate the need of adding lubricant over a long term and a construction machine comprising the bearing device. The bearing device comprises a shaft. The bearing device comprises a boss portion having a bearing rotatably holding the shaft. The bearing device comprises a cylindrical collar mounted on an end part side of the shaft rather than the boss portion. The bearing device comprises a floating seal for sealing lubricant sandwiched between the boss portion and collar. The bearing device comprises a pin being inserted into the insertion holes provided in the shaft and collar and integrally fixing the shaft and collar at a position where a predetermined axial load is applied to the floating seal between the collar and boss portion. The bearing device comprises a bracket having an opening for mounting the collar.

2. 发明申请

US20230076084A1 SYSTEM AND METHOD IMPLEMENTING AUXILIARY DEVICE TO WORK MACHINE 有权
公开(公告)号：US20230076084A1
公开(公告)日：2023-03-09
申请号：US17467466
申请日：2021-09-07
申请人： Caterpillar SARL
发明人： Yozo NAKAMOTO , Naoyuki MORIYA , Kensuke TANAKA , Marilyn E. WORLEY
IPC分类号： E02F9/20 , G06F3/0338 , G06F3/0484 , G05B19/409 , E02F9/26
摘要： An assembly for a work machine comprises an operation lever comprising a first switch and a second switch, the first switch being activated and set for controlling the work machine and the second switch being deactivated at a point of factory shipment, a first port electrically coupled to the second switch of the operation lever, a second port coupled to a power source of the work machine, and a processing circuitry. The processing circuitry is configured to receive a request for setting an auxiliary device to the work machine from an input device, the auxiliary device being detachably attached to the work machine after the point of factory shipment; assign the first port to the second switch of the operation lever, to control the auxiliary device; assign the second port to the auxiliary device, to supply power to the auxiliary device; and set configuration information of the auxiliary device based on input information from the input device.

3. 发明申请

US20230074416A1 Disconnection Assembly For Tethered Electric Vehicle 有权
公开(公告)号：US20230074416A1
公开(公告)日：2023-03-09
申请号：US17799482
申请日：2021-01-29
申请人： Caterpillar SARL
发明人： Maxim Rhys Ruffels , Richard Strong , Simon Conway
IPC分类号： B60L50/53 , B60L53/18 , H01H3/16 , H01H27/00 , H01H3/02 , H01H9/28
摘要： An electric vehicle is supplied with power from a power supply via a cable suspended from an anchor. The anchor is attached to a mount on the vehicle and detachable from the mount by tension in the first portion of the cable between the anchor and the power supply. A second portion of the cable between the anchor and the vehicle remains slack in the attached position of the anchor, and extends on detachment of the anchor to relieve tension in the first portion of the cable. A disconnection switch is operable by detachment of the anchor to interrupt the power supply from the cable to the vehicle.

4. 发明授权

US11532184B2 Monitoring the operation of a work machine 有权
公开(公告)号：US11532184B2
公开(公告)日：2022-12-20
申请号：US16472122
申请日：2017-12-21
申请人： Caterpillar SARL
发明人： David Wisley , Alan Todd , Michael Looney , John Percival
IPC分类号： G07C5/00 , B64C39/02 , G01C11/02 , G06Q10/06 , G07C5/08 , G01C15/00
摘要： A surveying device is operated to measure a surface profile of a terrain of a worksite and generate surface profile data indicative of the surface profile. A work machine is operated to move along a route over the terrain in accordance with an operating parameter and generates machine operational data indicative of the operating parameter. A navigation system determines the route and generates route data. A processing unit processes the route data, machine operational data and surface profile data to generate monitored operating condition data indicative of a monitored operating condition of the machine.

5. 发明授权

US11512449B2 Hydraulic control system and method for a bucket shake operation in a work machine with a hydraulic pump and unloader valve 有权
公开(公告)号：US11512449B2
公开(公告)日：2022-11-29
申请号：US17550894
申请日：2021-12-14
申请人： Caterpillar SARL
发明人： Paul John Cairns , Fuaad Sayeed , Arick M. Bakken , Niall Hugh McNamee
IPC分类号： E02F9/22 , E02F3/40
摘要： An excavator or other work machine includes a tilting bucket operated by a hydraulic actuator controlled by a bucket control valve responsive to control signals including a bucket shake control signal, which causes the bucket to move repeatedly in the rack and dump directions to shake debris from the bucket in a bucket shake operation. The actuator is powered by pressure from a hydraulic pump, and a control system includes an unloader valve to relieve pressure from the supply line to unload the pump when there is no demand for power. The control system is arranged to maintain a constant pressure signal in a load sensing line, to maintain the unloader valve constantly in a closed condition, for the duration of the bucket shake operation. This may be achieved by pressurising an actuator of a quick coupler to lock the bucket to the machine.

6. 发明授权

US11428148B2 Tank used in engine cooling system, engine cooling system, and work machine 有权
公开(公告)号：US11428148B2
公开(公告)日：2022-08-30
申请号：US17296536
申请日：2019-11-20
申请人： Caterpillar SARL
发明人： Li Dong , Guoping Tian , Gengxin Liu , Kesheng Xu
IPC分类号： F01P11/04 , F01P3/02 , F01P11/02 , F01P5/10 , F02F1/16
摘要： The invention relates to a tank used in an engine cooling system, the engine cooling system, and a work machine. The tank includes a housing and a partition which dividing the housing into an exhaust tank and an expansion tank which are sealed from each other. The exhaust tank includes a first connecting pipe and a second connecting pipe, the first connecting pipe being adapted to be fluidly connected to an engine cylinder jacket of the engine cooling system to introduce coolant into the exhaust tank, and the second connecting pipe being adapted to be fluidly connected to a heat exchanger of the engine cooling system to discharge the coolant into the heat exchanger. The expansion tank includes a third connecting pipe adapted to be fluidly connected to the engine cooling system. The tank further includes a guiding tube having a first end in communication with the exhaust tank, and a second end arranged in the expansion tank, so that gas contained in the coolant flowing through the exhaust tank is exported into the expansion tank through the guiding tube. The exhaust tank enables the gas in the coolant to be separated before entering the heat exchanger, and the thermal stress impact to the heat exchanger is reduced.

7. 发明授权

US11427168B2 Brake system for a vehicle 有权
公开(公告)号：US11427168B2
公开(公告)日：2022-08-30
申请号：US16741155
申请日：2020-01-13
申请人： Caterpillar SARL
发明人： Steven Johnson , Adam Adeeb
IPC分类号： B60T8/17 , B60T8/1755 , B60T7/12 , B60T15/02 , B60T8/32 , B60T7/04
摘要： The present invention pertains to a brake system for a vehicle, in particular a wheeled vehicle, comprising a control unit configured to operate the brake system in an automatic retarding control mode and in a brake assist mode, a brake pedal valve, and at least one brake valve unit for actuating a brake actuator. The break valve unit comprises a brake valve for applying pressurized fluid to the brake actuator in response to a control pressure applied to a hydraulic actuator of the brake valve, a blocking valve for controlling application of pressurized fluid from the brake pedal valve to the hydraulic actuator of the brake valve, and a brake pressure control valve for controlling application of pressurized fluid to the hydraulic actuator of the brake valve.

8. 发明申请

US20220185398A1 SUSPENSION AND DRIVE SYSTEM FOR A MACHINE 有权
公开(公告)号：US20220185398A1
公开(公告)日：2022-06-16
申请号：US17247455
申请日：2020-12-11
申请人： Caterpillar SARL
发明人： Peter J. JOHNSON
IPC分类号： B62D55/12 , B60K5/12 , B60G7/00 , B62D21/02 , B62D55/18 , B62D55/30
摘要： A suspension and drive system includes front and rear torsion axle assemblies. The front torsion axle assembly includes a front axle, a front shaft, and a front arm connecting the front axle to the front shaft. The rear torsion axle assembly includes a rear axle, a rear shaft, and a rear arm connecting the rear axle to the rear shaft. A center of the front torsion axle assembly and the rear torsion axle assembly together define a quadrilateral. The front axle defines a first vertex of the quadrilateral, the front shaft defines a second vertex of the quadrilateral, the rear shaft defines a third vertex of the quadrilateral, and the rear axle defines a fourth vertex of the quadrilateral. An interior angle of the quadrilateral at the fourth vertex is less than an interior angle of the quadrilateral at the second vertex.

9. 发明授权

US11352755B2 Cleaning system and method for a spraying system 有权
公开(公告)号：US11352755B2
公开(公告)日：2022-06-07
申请号：US16425275
申请日：2019-05-29
申请人： Caterpillar SARL
发明人： Chad M. Thiesse , Andrea Fontana
IPC分类号： E01H3/04 , G01F23/00 , E01C19/17 , G01F23/80
摘要： A spraying system for a road construction machine includes an emulsion fluid delivery system including an emulsion fluid supply, an emulsion pump, at least one spray bar with one or more nozzles, and flow conduits arranged to convey emulsion through the emulsion fluid delivery system. The spraying system may include a cleaning fluid tank containing a cleaning fluid, where the cleaning fluid tank is fluidly coupled to the emulsion fluid delivery system during a cleaning process. The spraying system may also include a flow monitoring system configured to monitor the amount of cleaning fluid delivered from the cleaning fluid tank to the emulsion fluid delivery system, where the flow monitoring system is configured to provide an indication regarding the amount of cleaning fluid delivered to the emulsion fluid delivery system during the cleaning process.

10. 发明申请

US20220154760A1 CLEARANCE ADJUSTING MEMBER 有权
公开(公告)号：US20220154760A1
公开(公告)日：2022-05-19
申请号：US17431855
申请日：2020-02-13
申请人： Caterpillar SARL
发明人： Tetsuya KOSHIMA , Hirokazu KOGA , Naoki MIYATA , Toru AMAYA , Kota TATSUMI , Kazufumi NISHIMOTO , Hiroya ITO
IPC分类号： F16B43/00
摘要： To provide a clearance adjusting member that allows for easy attaching and detaching works and has no risk of falling off from a pin. A clearance adjusting member, in a pin coupling structure in which a first member and a second member are coupled freely to be rotated in relation to each other by a cylindrical pin, for adjusting an axial clearance between the first member and the second member, the clearance adjusting member comprises a shim in a U-shape or C-shape attached to the pin in the axial clearance, and a restricting means for restricting the shim so as to be freely releasable. A restricted piece protruding radially outward is formed on an outer circumferential edge of the shim. The restricting means includes a pair of restricting pieces spacedly arranged circumferentially on the radially outer side of the pin. One-side slanting piece extending by slanting to the direction of axial one-side towards a circumferential one-side is provided at a circumferential one-side end portion of one restricting piece. Another-side slanting piece extending by slanting to the direction of an axial one-side towards a circumferential another-side is provided at the circumferential another-side end portion of the restricting piece of another side. When the shim is inserted towards the axial clearance, the restricted piece pushes and rides over while elastically deforming the one-side slanting piece towards the circumferential one-side, or the restricted piece pushes and rides over while elastically deforming the another-side slanting piece towards the circumferential another-side, and thereby the restricted piece is positioned between the pair of restricting pieces and the shim is attached to the pin.

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