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公开(公告)号：US09758946B2
公开(公告)日：2017-09-12
申请号：US14372108
申请日：2014-02-26
Applicant: KOMATSU LTD.
Inventor： Jin Yogita , Eiji Morinaga , Kozo Okuda , Kazuyoshi Morimoto
IPC: E02F9/20 , F02D41/02 , E02F9/22 , E02F3/32 , E02F9/08 , F01N11/00 , F02D41/22 , F02D41/24 , F01N3/20
CPC classification number: E02F9/2066 , E02F3/32 , E02F9/0866 , E02F9/0883 , E02F9/2235 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2590/08 , F02D41/021 , F02D41/0275 , F02D41/22 , F02D41/2422 , F02D2041/228 , F02D2200/604 , F02D2250/26 , Y02A50/2325 , Y02T10/40 , Y02T10/47
Abstract: A work vehicle having a plurality of working modes allowing working in accordance with a load state includes an engine, an exhaust gas purification apparatus, a reducing agent tank, a state determination portion, and an engine control unit. The exhaust gas purification apparatus purifies a nitrogen oxide in an exhaust gas. The reducing agent tank stores a reducing agent. The state determination portion determines a state of the reducing agent. The engine control unit controls output of the engine with the use of a restricted-operation engine output torque curve in which horsepower output from the engine is lower than horsepower output from the engine at the time when each of the plurality of working modes is selected, when a state of the reducing agent is equal to or lower than a reference value.
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公开(公告)号：US20140196975A1
公开(公告)日：2014-07-17
申请号：US14118409
申请日：2012-11-20
Applicant: KOMATSU LTD.
Inventor： Takanori Hata , Hiroshi Yamashita , Kazuyoshi Morimoto , Huzhe Yang , Gary Ryan
CPC classification number: E02F9/0866 , E02F9/0883 , E02F9/18 , F01N3/2066 , F01N13/1822 , F01N2340/04 , F01N2590/08 , F01N2610/02 , F01N2610/14 , Y02A50/2325 , Y02T10/24
Abstract: An exhaust processing unit includes a selective catalytic reduction apparatus which processes exhaust from an engine. A reducing agent injection apparatus is attached to the exhaust processing unit. The reducing agent injection apparatus injects a reducing agent which is supplied to the selective catalytic reduction apparatus. The reducing agent tank and the reducing agent supply pump are arranged outside the engine compartment. The reducing agent tank retains the reducing agent. The reducing agent supply pump supplies the reducing agent from the reducing agent tank to the reducing agent injection apparatus. The reducing agent pipe connects the reducing agent supply pump and the reducing agent injection apparatus. The revolving frame includes a pipe frame. The reducing agent pipe is arranged from the reducing agent supply pump to the reducing agent injection apparatus so as to pass through the inner space of the pipe frame.
Abstract translation: 排气处理单元包括处理来自发动机的排气的选择性催化还原装置。 还原剂注入装置附接到排气处理单元。 还原剂注入装置注入供给到选择性催化还原装置的还原剂。 还原剂罐和还原剂供应泵布置在发动机室外。 还原剂罐保留还原剂。 还原剂供给泵将还原剂从还原剂罐供给到还原剂注入装置。 还原剂管连接还原剂供给泵和还原剂注入装置。 旋转框架包括管道框架。 还原剂管从还原剂供给泵配置到还原剂注入装置，以通过管框的内部空间。
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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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Patent Agency Ranking
公开(公告)号：US08955638B2
公开(公告)日：2015-02-17
申请号：US14118409
申请日：2012-11-20
Applicant: Komatsu Ltd.
Inventor： Takanori Hata , Hiroshi Yamashita , Kazuyoshi Morimoto , Huzhe Yang , Gary Ryan
CPC classification number: E02F9/0866 , E02F9/0883 , E02F9/18 , F01N3/2066 , F01N13/1822 , F01N2340/04 , F01N2590/08 , F01N2610/02 , F01N2610/14 , Y02A50/2325 , Y02T10/24
Abstract: An exhaust processing unit includes a selective catalytic reduction apparatus which processes exhaust from an engine. A reducing agent injection apparatus is attached to the exhaust processing unit. The reducing agent injection apparatus injects a reducing agent which is supplied to the selective catalytic reduction apparatus. The reducing agent tank and the reducing agent supply pump are arranged outside the engine compartment. The reducing agent tank retains the reducing agent. The reducing agent supply pump supplies the reducing agent from the reducing agent tank to the reducing agent injection apparatus. The reducing agent pipe connects the reducing agent supply pump and the reducing agent injection apparatus. The revolving frame includes a pipe frame. The reducing agent pipe is arranged from the reducing agent supply pump to the reducing agent injection apparatus so as to pass through the inner space of the pipe frame.
Abstract translation: 排气处理单元包括处理来自发动机的排气的选择性催化还原装置。 还原剂注入装置附接到排气处理单元。 还原剂注入装置注入供给到选择性催化还原装置的还原剂。 还原剂罐和还原剂供应泵布置在发动机室外。 还原剂罐保留还原剂。 还原剂供给泵将还原剂从还原剂罐供给到还原剂注入装置。 还原剂管连接还原剂供给泵和还原剂注入装置。 旋转框架包括管道框架。 还原剂管从还原剂供给泵配置到还原剂注入装置，以通过管框的内部空间。
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公开(公告)号：US20150240454A1
公开(公告)日：2015-08-27
申请号：US14372108
申请日：2014-02-26
Applicant: KOMATSU LTD.
Inventor： Jin Yogita , Eiji Morinaga , Kozo Okuda , Kazuyoshi Morimoto
CPC classification number: E02F9/2066 , E02F3/32 , E02F9/0866 , E02F9/0883 , E02F9/2235 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2590/08 , F02D41/021 , F02D41/0275 , F02D41/22 , F02D41/2422 , F02D2041/228 , F02D2200/604 , F02D2250/26 , Y02A50/2325 , Y02T10/40 , Y02T10/47
Abstract: A work vehicle having a plurality of working modes allowing working in accordance with a load state includes an engine, an exhaust gas purification apparatus, a reducing agent tank, a state determination portion, and an engine control unit. The exhaust gas purification apparatus purifies a nitrogen oxide in an exhaust gas. The reducing agent tank stores a reducing agent. The state determination portion determines a state of the reducing agent. The engine control unit controls output of the engine with the use of a restricted-operation engine output torque curve in which horsepower output from the engine is lower than horsepower output from the engine at the time when each of the plurality of working modes is selected, when a state of the reducing agent is equal to or lower than a reference value.
Abstract translation: 具有允许根据负载状态进行工作的多个工作模式的作业车辆包括发动机，排气净化装置，还原剂箱，状态判定部和发动机控制单元。 废气净化装置净化废气中的氮氧化物。 还原剂罐储存还原剂。 状态判定部判定还原剂的状态。 发动机控制单元通过使用限制运行的发动机输出转矩曲线来控制发动机的输出，在选择多个工作模式中的每一个时，来自发动机的马力输出低于从发动机输出的马力， 当还原剂的状态等于或低于参考值时。
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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：US08805608B2
公开(公告)日：2014-08-12
申请号：US13811005
申请日：2012-10-18
Applicant: Komatsu Ltd.
Inventor： Hayato Matsumoto , Hiroshi Sawada , Kazuyoshi Morimoto
IPC: F02D41/24
CPC classification number: F02M51/00 , E02F9/2004 , E02F9/2066 , E02F9/2285 , E02F9/2296 , E02F9/267 , F02D11/02 , F02D29/04
Abstract: In a crawler construction machine including an engine and a fuel adjustment dial that adjusts a speed of the engine according to operation loads of the working equipment, the fuel adjustment dial is a rotary notchless dial that is continuously variably adjustable. The crawler construction machine includes: an adjustment position detector that detects a rotation adjustment position of the fuel adjustment dial; an engine controller that is connected to the adjustment position detector and controls the speed of the engine based on an adjustment position of the fuel adjustment dial; and a display device that is connected to the engine controller and displays on a screen a percentage value of the adjustment position of the fuel adjustment dial in which the maximum rotation position of the fuel adjustment dial is defined as 100%.
Abstract translation: 在包括发动机和燃料调节盘的履带式施工机械中，燃料调节盘是连续可变地调节的旋转式无切槽式表盘，该调节盘根据作业设备的操作负荷来调节发动机的转速。 履带式施工机械包括：检测燃料调节盘旋转调节位置的调整位置检测器; 发动机控制器，其连接到所述调节位置检测器，并且基于所述燃料调节拨盘的调节位置来控制所述发动机的速度; 以及显示装置，其连接到所述发动机控制器并且在所述燃料调节转盘的最大旋转位置被定义为100％的情况下在所述屏幕上显示所述燃料调节转盘的调节位置的百分比值。
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公开(公告)号：US20140150750A1
公开(公告)日：2014-06-05
申请号：US13811005
申请日：2012-10-18
Applicant: Komatsu Ltd.
Inventor： Hayato Matsumoto , Hiroshi Sawada , Kazuyoshi Morimoto
IPC: F02M51/00
CPC classification number: F02M51/00 , E02F9/2004 , E02F9/2066 , E02F9/2285 , E02F9/2296 , E02F9/267 , F02D11/02 , F02D29/04
Abstract: In a crawler construction machine including an engine and a fuel adjustment dial that adjusts a speed of the engine according to operation loads of the working equipment, the fuel adjustment dial is a rotary notchless dial that is continuously variably adjustable. The crawler construction machine includes: an adjustment position detector that detects a rotation adjustment position of the fuel adjustment dial; an engine controller that is connected to the adjustment position detector and controls the speed of the engine based on an adjustment position of the fuel adjustment dial; and a display device that is connected to the engine controller and displays on a screen a percentage value of the adjustment position of the fuel adjustment dial in which the maximum rotation position of the fuel adjustment dial is defined as 100%.
Abstract translation: 在包括发动机和燃料调节盘的履带式施工机械中，燃料调节盘是连续可变地调节的旋转式无切槽式表盘，该调节盘根据作业设备的操作负荷来调节发动机的转速。 履带式施工机械包括：检测燃料调节盘旋转调节位置的调整位置检测器; 发动机控制器，其连接到所述调节位置检测器，并且基于所述燃料调节拨盘的调节位置来控制所述发动机的速度; 以及显示装置，其连接到所述发动机控制器并且在所述燃料调节转盘的最大旋转位置被定义为100％的情况下在所述屏幕上显示所述燃料调节转盘的调节位置的百分比值。
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