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公开(公告)号：US08459008B2
公开(公告)日：2013-06-11
申请号：US12821550
申请日：2010-06-23
CPC分类号： F01N13/0097 , E02F9/0866 , E02F9/2066 , E02F9/2228 , E02F9/2235 , F01N3/103 , F01N3/106 , F01N9/002 , F01N2430/06 , F01N2430/085 , F01N2560/06 , F01N2560/08 , F01N2590/08 , F01N2900/1406 , F01N2900/1602 , F02D41/0255 , F02D41/029 , F02D2041/026 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas treatment filter removes particulate matter from exhaust gas of a diesel engine. The particulate matter which accumulates on the filter is removed by a manual regeneration system that can simply be controlled.After a manual regeneration switch 22 is shifted to an ON-position, a load control section 66 keeps at least one of the revolution speed N of an engine 1, the displacement volume q and discharge pressure P of a hydraulic pressure pump 11 at a corresponding first target value (N1, q1, or P1) or second target value (N2, q2, or P2) depending on a temperature of the cooling water in relation to a flame-out prevention temperature T1. A regeneration control section 67 starts the compulsory regeneration after the manual regeneration switch has been shifted to the ON-position and when the cooling water temperature is equal to or higher than T1.
摘要翻译： 废气处理过滤器从柴油发动机的废气中除去颗粒物。 积聚在过滤器上的颗粒物质可以通过简单的控制手动再生系统去除。 在手动再生开关22移动到接通位置之后，负载控制部66将发动机1的转速N，液压泵11的排量Q和排出压力P中的至少一个保持在相应的 第一目标值（N1，q1或P1）或第二目标值（N2，q2或P2），这取决于冷却水的温度相对于熄火防止温度T1。 再生控制部67在手动再生开关转移到ON位置之后以及当冷却水温度等于或高于T1时开始强制再生。
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公开(公告)号：US08429904B2
公开(公告)日：2013-04-30
申请号：US12818433
申请日：2010-06-18
申请人： Kazuhiro Shibamori , Kazunori Nakamura , Kouji Ishikawa , Yoichi Kowatari , Hidenobu Tsukada , Shohei Kamiya , Masanori Ezawa
发明人： Kazuhiro Shibamori , Kazunori Nakamura , Kouji Ishikawa , Yoichi Kowatari , Hidenobu Tsukada , Shohei Kamiya , Masanori Ezawa
CPC分类号： F01N3/023 , F01N3/0232 , F01N9/002 , F01N2900/1606 , F02D41/029 , F02D2041/228 , F02D2200/0812 , F02D2200/701 , F02D2200/702 , Y02T10/47
摘要： Disclosed is a working machine capable of preventing damage to a filter due to excessive accumulation of particulate matter (PM), even under a situation that requires, prior to compulsory regeneration of the filter, moving the machine to a place in which to perform the regeneration work. The working machine that includes an exhaust treatment device 4 having a filter 6 to trap the PM, a regeneration control section 31 for compulsorily regenerating the filter, and a regeneration instruction device 23 for instructing the regeneration control section 31 to start the compulsory regeneration. Further, when a deposition quantity estimating element determines that an actual PM deposition quantity has reached a deposition alarm level, an alarm device 12 notifies an operator that the time has come to start the movement of the working machine to the place of regeneration.
摘要翻译： 公开了一种能够防止由于颗粒物质（PM）的过度积聚而导致的过滤器的损坏的作业机械，即使在强制再生过滤器之前，也需要将机器移动到进行再生的地方 工作。 包括具有用于捕集PM的过滤器6的废气处理装置4的工作机，用于强制再生过滤器的再生控制部31，以及用于指示再生控制部31开始强制再生的再生指示装置23。 此外，当沉积量估计元件确定实际的PM沉积量已经达到沉积报警水平时，报警装置12通知操作者现在是开始将工作机器移动到再生地点的时间。
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公开(公告)号：US20120163996A1
公开(公告)日：2012-06-28
申请号：US13393758
申请日：2010-09-02
CPC分类号： F04B49/08 , F01N3/021 , F01N3/023 , F01N2900/08 , F02D41/029 , F02D2041/026 , F04B17/05 , F04B2205/05
摘要： A hydraulic drive system for a hydraulic working machine sets a delivery pressure at a preset value upon raising a temperature of exhaust gas to a temperature needed for combustion of particulate matter by increasing a load to be applied to an engine. In a non-operation state, a variable restrictor is controlled by a controller and a delivery pressure control valve to increase a delivery pressure of a variable displacement hydraulic pump, so that the load is increased to raise the temperature of exhaust gas to the temperature needed for the particulate matter combustion. At this time, the controller controls the delivery pressure control valve such that a delivery pressure to be detected by a delivery pressure sensor will conform with a preset reference delivery pressure. The reference delivery pressure is set to a minimum pressure that can provide the exhaust gas with combustion heat.
摘要翻译： 液压工程机械的液压驱动系统通过增加施加到发动机的负荷将排气温度提高到颗粒物质燃烧所需的温度，将输送压力设定在预定值。 在非操作状态下，可变节流器由控制器和输送压力控制阀控制，以增加可变排量液压泵的输送压力，从而增加负载以将排气温度提高到所需温度 用于颗粒物燃烧。 此时，控制器控制输送压力控制阀，使得由输送压力传感器检测的输送压力将与预设的参考输送压力一致。 参考输送压力被设定为可以向废气提供燃烧热的最小压力。
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公开(公告)号：US20100170227A1
公开(公告)日：2010-07-08
申请号：US12663127
申请日：2008-10-22
CPC分类号： F01N9/002 , E02F9/00 , E02F9/0866 , F01N3/0253 , F01N2900/10 , F02D41/0245 , F02D41/029 , F02D41/08 , F02D2041/026 , F02D2200/604 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas cleaning system for an engineering vehicle, such as a hydraulic excavator, is capable of performing manual regeneration control of a regeneration fuel injector 40 that is started only under the following conditions: a manual regeneration starting switch 39 is enabled; an engine control dial 2 commands a low-speed idle revolution speed; and a gate lock lever 22 is switched to a second position B at which generation of control pilot pressures a through f by use of remote control valves 25, 26, and 27 is disabled. Even when the manual regeneration control is being executed, if the gate lock lever 22 is switched to a first position A, the manual regeneration control immediately ends. As a result, the manual regeneration control of a filter for collecting particulate matter included in the exhaust gas and the operation of the work system do not influence each other.
摘要翻译： 用于诸如液压挖掘机的工程车辆的废气净化系统能够执行仅在以下条件下启动的再生燃料喷射器40的手动再生控制：启用手动再生启动开关39; 发动机控制拨盘2指示低速怠速转速; 并且门锁定杆22切换到第二位置B，在第二位置B处，通过使用远程控制阀25,26和27的控制先导压力a至f的产生被禁用。 即使正在执行手动再生控制，如果门锁杆22切换到第一位置A，则手动再生控制立即结束。 结果，用于收集废气中所含的颗粒物质的过滤器的手动再生控制和工作系统的操作不会相互影响。
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公开(公告)号：US20100058743A1
公开(公告)日：2010-03-11
申请号：US12447554
申请日：2008-07-17
CPC分类号： F01N9/002 , F01N3/0253 , F01N3/035 , F01N3/106 , F01N13/0097 , F01N2550/04 , F01N2560/06 , F01N2560/08 , F01N2560/14 , F01N2610/146 , F01N2900/0408 , F01N2900/0416 , F01N2900/14 , Y02T10/47
摘要： Each time a starting process for a diesel engine 2 is conducted and before the diesel engine 2 is started, any differences of the pressures P1 and P2 detected by first and second pressure sensors 21 and 22, respectively, with respect to a predetermined reference pressure value Pref, are computed and stored as first and second correction values ΔP1 and ΔP2, and then a differential pressure P12 across a particulate filter in the diesel engine 2 is computed using the pressure detection results of the first and second pressure sensors 21, 22 and the first and second correction values ΔP1, ΔP2. Thus, use of simply constructed and highly durable sensors during the detection of the differential pressure existing across the filter allows accurate measurement of this differential pressure.
摘要翻译： 每当进行柴油发动机2的启动过程，并且在柴油发动机2启动之前，分别由第一和第二压力传感器21和22检测到的压力P1和P2相对于预定参考压力值的任何差异 Pref被计算并存储为第一和第二校正值＆Dgr; P1和＆Dgr; P2，然后使用第一和第二压力传感器21的压力检测结果计算柴油发动机2中的微粒过滤器上的压差P12 ，22以及第一和第二校正值＆Dgr; P1，＆Dgr; P2。 因此，在检测存在于过滤器上的差压时，使用简单构造和高耐久性的传感器可以准确测量该差压。
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公开(公告)号：US08881506B2
公开(公告)日：2014-11-11
申请号：US13393758
申请日：2010-09-02
CPC分类号： F04B49/08 , F01N3/021 , F01N3/023 , F01N2900/08 , F02D41/029 , F02D2041/026 , F04B17/05 , F04B2205/05
摘要： A hydraulic drive system for a hydraulic working machine sets a delivery pressure at a preset value upon raising a temperature of exhaust gas to a temperature needed for combustion of particulate matter by increasing a load to be applied to an engine. In a non-operation state, a variable restrictor is controlled by a controller and a delivery pressure control valve to increase a delivery pressure of a variable displacement hydraulic pump, so that the load is increased to raise the temperature of exhaust gas to the temperature needed for the particulate matter combustion. At this time, the controller controls the delivery pressure control valve such that a delivery pressure to be detected by a delivery pressure sensor will conform with a preset reference delivery pressure. The reference delivery pressure is set to a minimum pressure that can provide the exhaust gas with combustion heat.
摘要翻译： 液压工程机械的液压驱动系统通过增加施加到发动机的负荷将排气温度提高到颗粒物质燃烧所需的温度，将输送压力设定在预定值。 在非操作状态下，可变节流器由控制器和输送压力控制阀控制，以增加可变排量液压泵的输送压力，从而增加负载以将排气温度提高到所需温度 用于颗粒物燃烧。 此时，控制器控制输送压力控制阀，使得由输送压力传感器检测的输送压力将与预设的参考输送压力一致。 参考输送压力被设定为可以向废气提供燃烧热的最小压力。
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公开(公告)号：US20120279203A1
公开(公告)日：2012-11-08
申请号：US13393871
申请日：2011-01-27
CPC分类号： F02D41/0245 , B01D53/944 , B01D53/9495 , B01D2258/012 , E02F9/0866 , E02F9/2066 , E02F9/2235 , E02F9/2296 , F01N3/023 , F01N9/002 , F01N2560/06 , F01N2560/08 , F01N2590/08 , F02D29/04 , F02D41/029 , F02D41/1448 , F02D2041/026 , Y02T10/26
摘要： When an output value of an exhaust resistance sensor 34 has reached or exceeded a set value ΔPa, a controller 20 executes recovery control of a filter of an exhaust gas purification device 32 after conducting exhaust temperature increasing control by operating a pump discharge pressure increasing device (solenoid proportional valve) 38 so that exhaust gas temperature as an output value of an exhaust temperature sensor 33 reaches a preset value Ta. Thus, the recovery process of the exhaust gas purification device can be executed with reliability by increasing the exhaust gas temperature irrespective of the operating environment and the fuel consumption can be kept at a minimum necessary level.
摘要翻译： 当排气阻力传感器34的输出值达到或超过设定值＆Dgr; Pa时，控制器20通过操作泵排出压力增加来执行废气升温控制之后执行废气净化装置32的过滤器的恢复控制 装置（电磁比例阀）38，使得作为排气温度传感器33的输出值的废气温度达到预设值Ta。 因此，排气净化装置的回收处理可以通过增加排气温度而可靠地执行，而与操作环境无关，并且可以将燃料消耗保持在最低必要水平。
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公开(公告)号：US08646255B2
公开(公告)日：2014-02-11
申请号：US12578702
申请日：2009-10-14
申请人： Hidenobu Tsukada , Kouji Ishikawa , Yasushi Arai , Shohei Kamiya
发明人： Hidenobu Tsukada , Kouji Ishikawa , Yasushi Arai , Shohei Kamiya
CPC分类号： E02F9/0866 , E02F9/00 , F01N9/002 , Y02T10/47
摘要： An exhaust gas purification system for an engineering machine is capable of avoiding decreases in working efficiency during regeneration control by burning off a deposit of particulate matter from a filter efficiently during a work pause time. An operating section 17 of a display monitor 16 is used to set a work pause time and a work pause switch 13 notifies a vehicle body control unit 21 that the hydraulic excavator has entered a work pause state. In response, the vehicle body control unit 21 calculates the time required for a regenerating device to burn off the current amount of particulate matter deposited on the filter, and when the calculated time is longer than the preset work pause time, a regeneration controller 4a of an engine control unit 4 is activated, and a solenoid control valve 15 is switched to a closed position during the preset work pause time.
摘要翻译： 用于工程机械的废气净化系统能够通过在工作暂停时间期间有效地从过滤器中排除颗粒物质的沉积而避免再生控制期间的工作效率的降低。 显示监视器16的操作部17用于设定工作暂停时间，工作暂停开关13通知车体控制部21，液压挖掘机已进入作业暂停状态。 作为响应，车身控制单元21计算再生装置消除沉积在过滤器上的颗粒物质的当前量所需的时间，并且当计算出的时间比预设的工作暂停时间长时，再生控制器4a 发动机控制单元4被启动，并且在预设的工作暂停时间期间，电磁控制阀15切换到关闭位置。
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公开(公告)号：US08302386B2
公开(公告)日：2012-11-06
申请号：US12447554
申请日：2008-07-17
CPC分类号： F01N9/002 , F01N3/0253 , F01N3/035 , F01N3/106 , F01N13/0097 , F01N2550/04 , F01N2560/06 , F01N2560/08 , F01N2560/14 , F01N2610/146 , F01N2900/0408 , F01N2900/0416 , F01N2900/14 , Y02T10/47
摘要： Each time a starting process for a diesel engine 2 is conducted and before the diesel engine 2 is started, any differences of the pressures P1 and P2 detected by first and second pressure sensors 21 and 22, respectively, with respect to a predetermined reference pressure value Pref, are computed and stored as first and second correction values ΔP1 and ΔP2, and then a differential pressure P12 across a particulate filter in the diesel engine 2 is computed using the pressure detection results of the first and second pressure sensors 21, 22 and the first and second correction values ΔP1, ΔP2. Thus, use of simply constructed and highly durable sensors during the detection of the differential pressure existing across the filter allows accurate measurement of this differential pressure.
摘要翻译： 每当进行柴油发动机2的启动过程，并且在柴油发动机2启动之前，分别由第一和第二压力传感器21和22检测的压力P1和P2相对于预定的参考压力值的任何差异 Pref被计算并存储为第一和第二校正值＆Dgr; P1和＆Dgr; P2，然后使用第一和第二压力传感器21的压力检测结果计算柴油发动机2中的微粒过滤器上的压差P12 ，22以及第一和第二校正值＆Dgr; P1，＆Dgr; P2。 因此，在检测存在于过滤器上的差压时，使用简单构造和高耐久性的传感器可以准确测量该差压。
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公开(公告)号：US08161736B2
公开(公告)日：2012-04-24
申请号：US12663127
申请日：2008-10-22
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , E02F9/00 , E02F9/0866 , F01N3/0253 , F01N2900/10 , F02D41/0245 , F02D41/029 , F02D41/08 , F02D2041/026 , F02D2200/604 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas cleaning system for an engineering vehicle, such as a hydraulic excavator, is capable of performing manual regeneration control of a regeneration fuel injector 40 that is started only under the following conditions: a manual regeneration starting switch 39 is enabled; an engine control dial 2 commands a low-speed idle revolution speed; and a gate lock lever 22 is switched to a second position B at which generation of control pilot pressures a through f by use of remote control valves 25, 26, and 27 is disabled. Even when the manual regeneration control is being executed, if the gate lock lever 22 is switched to a first position A, the manual regeneration control immediately ends. As a result, the manual regeneration control of a filter for collecting particulate matter included in the exhaust gas and the operation of the work system do not influence each other.
摘要翻译： 用于诸如液压挖掘机的工程车辆的废气净化系统能够执行仅在以下条件下启动的再生燃料喷射器40的手动再生控制：启用手动再生启动开关39; 发动机控制拨盘2指示低速怠速转速; 并且门锁定杆22切换到第二位置B，在第二位置B处，通过使用远程控制阀25,26和27的控制先导压力a至f的产生被禁用。 即使正在执行手动再生控制，如果门锁杆22切换到第一位置A，则手动再生控制立即结束。 结果，用于收集废气中所含的颗粒物质的过滤器的手动再生控制和工作系统的操作不会相互影响。
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