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公开(公告)号：US08972124B2
公开(公告)日：2015-03-03
申请号：US14126948
申请日：2013-07-22
Applicant: Komatsu Ltd.
Inventor： Tadashi Mori , Jin Yogita
CPC classification number: E02F9/2066 , E02F9/2296 , E02F9/26 , F02D17/00 , F02D29/04 , F02D31/001 , F02D2200/60 , F02N11/0829 , Y02T10/48
Abstract: A work vehicle includes an engine, an idling stop execution portion, a determination portion, a counting portion, and an idling stop time period adjustment portion. The engine can rotate in a first idling state and a second idling state in which the engine rotates at the number of rotations higher than a prescribed number of rotations. The idling stop execution portion performs an idling stop operation for stopping the engine. The determination portion determines whether or not stop has been made from the second idling state. The counting portion counts the number of times of stop of the engine from the second idling state. An idling stop time period adjustment portion makes a prescribed time period of the second idling state longer than a current time period, when the number of times of stop of the engine is equal to or greater than the prescribed number of times.
Abstract translation: 工作车辆包括发动机，怠速停止执行部分，判定部分，计数部分和怠速停止时间段调节部分。 发动机可以在第一怠速状态和第二怠速状态下旋转，其中发动机以高于规定转速的转速旋转。 怠速停止执行部执行用于停止发动机的怠速停止操作。 确定部分确定是否已经从第二空转状态进行了停止。 计数部对第二怠速状态的发动机的停止次数进行计数。 当发动机的停止次数等于或大于规定次数时，怠速停止时间段调整部使第二空转状态的规定时间段比当前时间段长。
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公开(公告)号：US08899017B2
公开(公告)日：2014-12-02
申请号：US14343524
申请日：2012-11-19
Applicant: Komatsu Ltd.
Inventor： Manabu Himoto , Osamu Nishimura , Tadashi Mori
CPC classification number: F01N3/2066 , B60K13/04 , B60Y2200/412 , E02F9/0833 , E02F9/0866 , F01N3/035 , F01N13/009 , F01N13/1805 , F01N2590/08 , Y02A50/2325 , Y02T10/24
Abstract: An exhaust treatment unit treats exhaust gas from an engine of a work vehicle. The exhaust treatment unit includes a diesel particulate filter device, a selective catalytic reduction device, a first support component and a second support component. The diesel particulate filter device treats the exhaust gas. The selective catalytic reduction device treats the exhaust gas. The first support component supports the diesel particulate filter device. The second support component supports the selective catalytic reduction device and the first support component. The first support component is detachable from the second support component.
Abstract translation: 排气处理单元处理来自作业车辆的发动机的废气。 排气处理单元包括柴油机微粒过滤装置，选择性催化还原装置，第一支撑部件和第二支撑部件。 柴油机微粒过滤装置处理废气。 选择性催化还原装置处理废气。 第一支撑部件支撑柴油机微粒过滤装置。 第二支撑部件支撑选择性催化还原装置和第一支撑部件。 第一支撑部件可从第二支撑部件拆卸。
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公开(公告)号：US09249710B2
公开(公告)日：2016-02-02
申请号：US14354943
申请日：2014-01-14
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Jin Yogita
IPC: F01N3/00 , F01N3/10 , F01N3/02 , F01N3/20 , F02D41/04 , F01N13/18 , F01N3/021 , F02D41/24 , F02D41/22 , E02F9/08 , E02F9/26 , F02D29/04
CPC classification number: F01N3/2066 , E02F9/0866 , E02F9/268 , F01N3/021 , F01N3/2006 , F01N3/208 , F01N13/1805 , F01N2240/20 , F01N2340/04 , F01N2550/05 , F01N2560/06 , F01N2610/02 , F01N2610/11 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F02D29/04 , F02D41/042 , F02D41/2403 , F02D2041/228 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A work vehicle includes an engine, an injector injecting a reducing agent to an exhaust gas exhausted from the engine, a determination portion determining whether or not a temperature of the injector is high, a stop determination portion determining whether or not the engine has stopped while the injector is in a high-temperature state as a result of determination by the determination portion, a counter counting the number of times of stop of the engine while the injector is in the high-temperature state based on a result of determination by the stop determination portion, and a warning portion giving a warning in connection with stop of the engine when a count value of the counter exceeds a first prescribed value.
Abstract translation: 工作车辆包括发动机，将发动机排出的排气喷射还原剂的喷射器，确定喷射器的温度是否高的判定部，判定发动机是否停止的停止判定部， 作为由确定部确定的结果，喷射器处于高温状态，当喷射器处于高温状态时，基于停止的确定结果计数发动机的停止次数的计数器 确定部分，以及当计数器的计数值超过第一规定值时与发动机停止相关的警告。
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公开(公告)号：US20150240448A1
公开(公告)日：2015-08-27
申请号：US14367968
申请日：2014-02-26
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Kazuyoshi Morimoto , Hiroshi Yamashita
CPC classification number: E02F9/0866 , B60K11/02 , B60K13/04 , B60Y2200/412 , E02F9/0808 , E02F9/0883 , E02F9/2004 , E02F9/2062 , E02F9/26 , F01N3/2066 , F01N3/208 , F01N3/2896 , F01N2340/04 , F01N2590/08 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01P2060/00 , Y02A50/2325 , Y02T10/24
Abstract: A work vehicle includes an engine, an exhaust gas purification apparatus, a reducing agent tank, an engine coolant circuit, a branch path, a valve, an accepting portion, and a valve control unit. The exhaust gas purification apparatus purifies a nitrogen oxide in an exhaust gas. The reducing agent tank stores a reducing agent to be supplied to the exhaust gas purification apparatus. The engine coolant circuit includes a water pump for circulating a engine coolant through a circulation path as the engine is driven. The branch path is provided for heat exchange between the engine coolant and the reducing agent in the reducing agent tank. The valve controls supply of the engine coolant into the branch path. The accepting portion accepts an operation instruction from an operator. The valve control unit gives an instruction for an opening operation of the valve in response to the operation instruction from the operator.
Abstract translation: 工作车辆包括发动机，废气净化装置，还原剂罐，发动机冷却剂回路，分支路径，阀，接受部和阀控制单元。 废气净化装置净化废气中的氮氧化物。 还原剂罐储存供给废气净化装置的还原剂。 发动机冷却剂回路包括水泵，用于在发动机被驱动时使发动机冷却剂循环通过循环路径。 分支路径被设置用于发动机冷却剂和还原剂罐中的还原剂之间的热交换。 阀门控制发动机冷却液供应到分支路径。 接受部接受来自操作者的操作指示。 阀控制单元响应于来自操作者的操作指令给出阀的打开操作的指令。
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公开(公告)号：US20150025753A1
公开(公告)日：2015-01-22
申请号：US14126948
申请日：2013-07-22
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Jin Yogita
CPC classification number: E02F9/2066 , E02F9/2296 , E02F9/26 , F02D17/00 , F02D29/04 , F02D31/001 , F02D2200/60 , F02N11/0829 , Y02T10/48
Abstract: A work vehicle includes an engine, an idling stop execution portion, a determination portion, a counting portion, and an idling stop time period adjustment portion. The engine can rotate in a first idling state and a second idling state in which the engine rotates at the number of rotations higher than a prescribed number of rotations. The idling stop execution portion performs an idling stop operation for stopping the engine. The determination portion determines whether or not stop has been made from the second idling state. The counting portion counts the number of times of stop of the engine from the second idling state. An idling stop time period adjustment portion makes a prescribed time period of the second idling state longer than a current time period, when the number of times of stop of the engine is equal to or greater than the prescribed number of times.
Abstract translation: 工作车辆包括发动机，怠速停止执行部分，判定部分，计数部分和怠速停止时间段调节部分。 发动机可以在第一怠速状态和第二怠速状态下旋转，其中发动机以高于规定转速的转速旋转。 怠速停止执行部执行用于停止发动机的怠速停止操作。 确定部分确定是否已经从第二空转状态进行了停止。 计数部对第二怠速状态的发动机的停止次数进行计数。 当发动机的停止次数等于或大于规定次数时，怠速停止时间段调整部使第二空转状态的规定时间段比当前时间段长。
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Patent Agency Ranking
公开(公告)号：US09303388B2
公开(公告)日：2016-04-05
申请号：US14367968
申请日：2014-02-26
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Kazuyoshi Morimoto , Hiroshi Yamashita
CPC classification number: E02F9/0866 , B60K11/02 , B60K13/04 , B60Y2200/412 , E02F9/0808 , E02F9/0883 , E02F9/2004 , E02F9/2062 , E02F9/26 , F01N3/2066 , F01N3/208 , F01N3/2896 , F01N2340/04 , F01N2590/08 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01P2060/00 , Y02A50/2325 , Y02T10/24
Abstract: A work vehicle includes an engine, an exhaust gas purification apparatus, a reducing agent tank, an engine coolant circuit, a branch path, a valve, an accepting portion, and a valve control unit. The exhaust gas purification apparatus purifies a nitrogen oxide in an exhaust gas. The reducing agent tank stores a reducing agent to be supplied to the exhaust gas purification apparatus. The engine coolant circuit includes a water pump for circulating a engine coolant through a circulation path as the engine is driven. The branch path is provided for heat exchange between the engine coolant and the reducing agent in the reducing agent tank. The valve controls supply of the engine coolant into the branch path. The accepting portion accepts an operation instruction from an operator. The valve control unit gives an instruction for an opening operation of the valve in response to the operation instruction from the operator.
Abstract translation: 工作车辆包括发动机，废气净化装置，还原剂罐，发动机冷却剂回路，分支路径，阀，接受部和阀控制单元。 废气净化装置净化废气中的氮氧化物。 还原剂罐储存供给废气净化装置的还原剂。 发动机冷却剂回路包括水泵，用于在发动机被驱动时使发动机冷却剂循环通过循环路径。 分支路径被设置用于发动机冷却剂和还原剂罐中的还原剂之间的热交换。 阀门控制发动机冷却液供应到分支路径。 接受部接受来自操作者的操作指示。 阀控制单元响应于来自操作者的操作指令给出阀的打开操作的指令。
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公开(公告)号：US20150198074A1
公开(公告)日：2015-07-16
申请号：US14354943
申请日：2014-01-14
Applicant: Komatsu Ltd.
Inventor： Tadashi Mori , Jin Yogita
IPC: F01N3/20
CPC classification number: F01N3/2066 , E02F9/0866 , E02F9/268 , F01N3/021 , F01N3/2006 , F01N3/208 , F01N13/1805 , F01N2240/20 , F01N2340/04 , F01N2550/05 , F01N2560/06 , F01N2610/02 , F01N2610/11 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F02D29/04 , F02D41/042 , F02D41/2403 , F02D2041/228 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A work vehicle includes an engine, an injector injecting a reducing agent to an exhaust gas exhausted from the engine, a determination portion determining whether or not a temperature of the injector is high, a stop determination portion determining whether or not the engine has stopped while the injector is in a high-temperature state as a result of determination by the determination portion, a counter counting the number of times of stop of the engine while the injector is in the high-temperature state based on a result of determination by the stop determination portion, and a warning portion giving a warning in connection with stop of the engine when a count value of the counter exceeds a first prescribed value.
Abstract translation: 工作车辆包括发动机，将发动机排出的排气喷射还原剂的喷射器，确定喷射器的温度是否高的判定部，判定发动机是否停止的停止判定部， 作为由确定部确定的结果，喷射器处于高温状态，当喷射器处于高温状态时，基于停止的确定结果计数发动机的停止次数的计数器 确定部分，以及当计数器的计数值超过第一规定值时与发动机停止相关的警告。
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公开(公告)号：US09133601B2
公开(公告)日：2015-09-15
申请号：US14114793
申请日：2012-11-20
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Manabu Himoto , Osamu Nishimura , Kenji Sanada
CPC classification number: E02F9/0866 , F01N3/021 , F01N13/009 , F01N13/08 , F01N2590/08 , Y02A50/2325 , Y02T10/20
Abstract: A hydraulic excavator includes an engine, a revolving frame supporting the engine, a vehicle body frame, a diesel particulate filter device, and a first connecting pipe. The vehicle body frame is disposed on the revolving frame. The diesel particulate filter device and the selective catalytic reduction device are supported by the vehicle body frame. The first connecting pipe connects the engine and the diesel particulate filter device. The first connecting pipe includes a bellows part that is extendable in at least a portion thereof. The diesel particulate filter device is located further away from the engine than the selective catalytic reduction device. The first connecting pipe passes below the selective catalytic reduction device and is connected to the diesel particulate filter device. A connecting portion for the diesel particulate filter device and the first connecting pipe is located below the diesel particulate filter device.
Abstract translation: 液压挖掘机包括发动机，支撑发动机的回转框架，车体框架，柴油机微粒过滤装置和第一连接管。 车体框架设置在旋转框架上。 柴油机微粒过滤装置和选择性催化还原装置由车身框架支撑。 第一连接管连接发动机和柴油机微粒过滤装置。 第一连接管包括在其至少一部分中可延伸的波纹管部分。 与选择性催化还原装置相比，柴油微粒过滤装置位于比发动机更远的地方。 第一连接管通过选择性催化还原装置下方并连接到柴油机微粒过滤装置。 用于柴油机微粒过滤装置和第一连接管的连接部分位于柴油机微粒过滤装置的下方。
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公开(公告)号：US11408145B2
公开(公告)日：2022-08-09
申请号：US16305463
申请日：2016-09-21
Applicant: KOMATSU LTD.
Inventor： Kiichirou Kouno , Tadashi Mori
Abstract: A work vehicle includes a valve for switching between a merging position for causing a first oil passage for driving a bucket and a second oil passage for driving an arm to communicate with each other, and a diverging position for separating the first oil passage and the second oil passage. The work vehicle is adapted to switch the valve from the merging position to the diverging position, when one of a pump pressure in the first pump and a pump pressure in the second pump comes to be equal to a predetermined value during an excavation operation. The work vehicle is adapted to control both pumps, such that the amount of the oil discharged from the first pump is larger than the amount of the oil discharged from the second pump, when the pump pressure in the first pump is equal to or more than the predetermined value.
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公开(公告)号：US09388729B2
公开(公告)日：2016-07-12
申请号：US14234835
申请日：2012-11-20
Applicant: KOMATSU LTD.
Inventor： Manabu Himoto , Osamu Nishimura , Tadashi Mori
CPC classification number: F01N13/1805 , E02F9/0866 , F01N3/035 , F01N3/2066 , F01N13/1816 , F01N2590/08 , F02B61/00
Abstract: A hydraulic excavator includes an engine, a revolving frame supporting the engine, a vehicle body frame, a first exhaust treatment apparatus and a connecting pipe. The vehicle body frame includes a plurality of column members disposed upright on the revolving frame. The first exhaust treatment apparatus is supported by the vehicle body frame and treats exhaust from the engine. The connecting pipe connects the engine and the first exhaust treatment apparatus. At least a portion of the connecting pipe includes an extendable and contractable bellows portion. The connecting pipe includes a fixing portion fixed to the vehicle body frame. The fixing portion is positioned in the connecting pipe between the bellows portion and the first exhaust treatment apparatus.
Abstract translation: 液压挖掘机包括发动机，支撑发动机的回转框架，车体框架，第一排气处理装置和连接管。 车身框架包括在旋转框架上竖直设置的多个柱构件。 第一排气处理装置由车体框架支撑并处理来自发动机的废气。 连接管连接发动机和第一排气处理装置。 连接管的至少一部分包括可伸缩的波纹管部分。 连接管包括固定在车体框架上的固定部。 固定部位于波纹管部和第一排气处理装置之间的连接管内。
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