公开(公告)号：US08096382B2

公开(公告)日：2012-01-17

申请号：US12598995

申请日：2008-05-28

申请人： Shohei Kamiya ,  Kazunori Nakamura ,  Yasushi Arai

发明人： Shohei Kamiya ,  Kazunori Nakamura ,  Yasushi Arai

IPC分类号： B60T7/309

CPC分类号： E02F9/2246 ,  B01D2251/2067 ,  E02F9/00 ,  E02F9/0808 ,  E02F9/2203 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2900/1814 ,  Y02T10/24

摘要： [PROBLEM] To provide a construction machine capable of performing necessary operation or operations without a difficulty even when a remaining amount of a reducing agent becomes small.[SOLUTION] In a hydraulic excavator having an engine, a hydraulic cylinder (18), plural actuators including a hydraulic motor (29), and an exhaust gas treatment system for subjecting, to purification treatment, nitrogen oxides in exhaust gas from the engine, the hydraulic excavator is provided with an actuator operation control means for performing, when the remaining amount of the reducing agent in a reducing agent storage tank (30) is detected by a remaining reducing-agent amount detector (33) to have become equal to or smaller than a predetermined remaining amount, limiting control to limit an operation of the hydraulic cylinder (18) such that a front working implement driven by the hydraulic cylinder (18) becomes difficult to exhibit its function, and at a same time, holding control for holding the hydraulic motor (20) operable such that a function of a travel base (1) or swing upperstructure (3) driven by the hydraulic motor (20) can be exhibited.

摘要翻译： [问题]提供即使在还原剂的剩余量变小时也难以进行必要的操作或操作的施工机械。 [解决方案]在具有发动机的液压挖掘机中，液压缸（18），包括液压马达（29）的多个致动器和用于对来自发动机的废气中的氮氧化物进行净化处理的废气处理系统， 液压挖掘机设置有致动器操作控制装置，用于当剩余的还原剂量检测器（33）检测到还原剂储存箱（30）中的还原剂的剩余量达到等于或等于 小于预定的剩余量，限制液压缸（18）的操作的限制，使得由液压缸（18）驱动的前工作工具变得难以发挥其功能，并且同时保持控制 保持液压马达（20）可操作，使得能够显示由液压马达（20）驱动的行驶基座（1）或摆动上部结构（3）的功能。

公开(公告)号：US20110011064A1

公开(公告)日：2011-01-20

申请号：US12667612

申请日：2008-07-02

申请人： Shohei Kamiya ,  Kazunori Nakamura

发明人： Shohei Kamiya ,  Kazunori Nakamura

IPC分类号： F01N3/20

CPC分类号： F01P3/20 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/10 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/1486 ,  F01N2900/1811

摘要： An engine powered machine is provided with a high-performance exhaust gas purification system and is capable of promptly raising a temperature of an operator's cab to a comfortable temperature. The exhaust gas purification system that makes use of an NOx removal catalyst and a reducing agent is provided with a reducing agent heater for heating a reducing agent, which is stored in a reducing agent tank, with heat of an engine cooling medium and an on/off device for controlling an introduction of the engine cooling medium into the reducing agent heater. When a temperature of the engine cooling medium is higher than a first predetermined temperature, a temperature of the reducing agent in the tank is lower than a second predetermined temperature and a temperature in an operator's cab is lower than a third predetermined temperature, a controller switches the on/off device into a dosed state to increase a flow rate of the engine cooling medium to be guided to a heat exchanger of a heating apparatus.

摘要翻译： 发动机动力机器具有高性能废气净化系统，能够迅速将驾驶室的温度升高到舒适的温度。 利用NOx去除催化剂和还原剂的排气净化系统设置有还原剂加热器，该还原剂加热器用于将发动机冷却介质的热量和存储在还原剂罐中的还原剂储存在还原剂中， 关闭装置，用于控制将发动机冷却介质引入还原剂加热器中。 当发动机冷却介质的温度高于第一预定温度时，罐中的还原剂的温度低于第二预定温度，并且驾驶室中的温度低于第三预定温度，则控制器切换 开/关装置进入计量状态以增加要被引导到加热装置的热交换器的发动机冷却介质的流量。

公开(公告)号：US08459014B2

公开(公告)日：2013-06-11

申请号：US12811452

申请日：2009-01-07

申请人： Shohei Kamiya ,  Masanori Ezawa ,  Kazunori Nakamura

发明人： Shohei Kamiya ,  Masanori Ezawa ,  Kazunori Nakamura

IPC分类号： F01N3/24

CPC分类号： F01N3/2066 ,  B60K13/04 ,  B60Y2200/41 ,  E02F9/0883 ,  E02F9/18 ,  F01N2340/04 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/1406 ,  Y02A50/2325 ,  Y02T10/24

摘要： A mounting structure for an NOx reduction system for a construction machine is provided for relaxing restrictions on a space for the arrangement of the NOx reduction system. The mounting structure includes a urea-water SCR catalyst for reducing and purifying nitrogen oxides emitted from an engine, a urea water spray device for spraying urea water into an exhaust passage of the engine, a urea water feeder for feeding the urea water to the urea water spray device, a first urea-water tank and second urea-water tank for storing the urea water to be guided to the urea water feeder, and a controller for controlling drive of the urea water spray device and urea water feeder. A counterweight is provided with a cavity formed therein, the urea water feeder, first urea-water tank, second urea-water tank and controller are integrally arranged as an assembly arranged in the cavity of the counterweight.

摘要翻译： 提供了一种用于建筑机械的NOx还原系统的安装结构，用于放宽用于排放NOx还原系统的空间的限制。 安装结构包括用于还原和净化从发动机排出的氮氧化物的尿素 - 水SCR催化剂，用于将尿素水喷射到发动机的排气通道中的尿素水喷射装置，用于将尿素水供给到尿素的尿素水供给器 水喷射装置，第一尿素水箱和第二尿素水箱，用于储存要引导到尿素给水器的尿素水;以及控制器，用于控制尿素水喷雾装置和尿素给水器的驱动。 配重设置有形成在其中的空腔，尿素给水器，第一尿素水箱，第二尿素水箱和控制器一体地布置为布置在配重的空腔中的组件。

公开(公告)号：US08186156B2

公开(公告)日：2012-05-29

申请号：US12519450

申请日：2008-03-06

申请人： Shohei Kamiya ,  Yasushi Arai ,  Kazunori Nakamura

发明人： Shohei Kamiya ,  Yasushi Arai ,  Kazunori Nakamura

IPC分类号： F15B7/00

CPC分类号： B01D53/9431 ,  B01D53/86 ,  B01D2258/012 ,  B01D2259/4566 ,  E02F9/00 ,  E02F9/0808 ,  E02F9/0883 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F15B21/06 ,  Y02A50/2325 ,  Y02T10/24

摘要： A ureal water tank (28), a storage of an aqueous urea solution, is located within a utility room (6G) in a right front section of a revolving frame (6), which is readily accessible from outside. In this instance, among a plurality of operating oil conduits (18), a working mechanism operating conduit (21) which supplies operating oil to a boom cylinder (5D) of a working mechanism (5) is arranged to run along exterior surfaces of the ureal water tank (28). Therefore, even if the ureal water tank (28) is located in a place with no heat source, the aqueous urea solution in the ureal water tank (28) can be stably kept in a heated state by utilization of heat of operating oil in circulation through the working mechanism operating conduit (21).

摘要翻译： 位于旋转框架（6）的右前部的多功能室（6G）内的尿素水溶液（28）的储存室可容易地从外部接近。 在这种情况下，在多个操作油管道（18）中，设置有向工作机构（5）的动臂缸（5D）供给工作油的作业机构操作导管（21），沿着 尿液水箱（28）。 因此，即使尿液水箱（28）位于没有热源的地方，也可以通过利用循环中的工作油的热量将尿素水溶液（28）中的尿素水溶液稳定地保持在加热状态 通过工作机构操作导管（21）。

公开(公告)号：US08677737B2

公开(公告)日：2014-03-25

申请号：US12667612

申请日：2008-07-02

申请人： Shohei Kamiya ,  Kazunori Nakamura

发明人： Shohei Kamiya ,  Kazunori Nakamura

IPC分类号： F01N3/00

CPC分类号： F01P3/20 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/10 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/1486 ,  F01N2900/1811

摘要： An engine powered machine is provided with a high-performance exhaust gas purification system and is capable of promptly raising a temperature of an operator's cab to a comfortable temperature. The exhaust gas purification system that makes use of an NOx removal catalyst and a reducing agent is provided with a reducing agent heater for heating a reducing agent, which is stored in a reducing agent tank, with heat of an engine cooling medium and an on/off device for controlling an introduction of the engine cooling medium into the reducing agent heater. When a temperature of the engine cooling medium is higher than a first predetermined temperature, a temperature of the reducing agent in the tank is lower than a second predetermined temperature and a temperature in an operator's cab is lower than a third predetermined temperature, a controller switches the on/off device into a closed state to increase a flow rate of the engine cooling medium to be guided to a heat exchanger of a heating apparatus.

摘要翻译： 发动机动力机器具有高性能废气净化系统，能够迅速将驾驶室的温度升高到舒适的温度。 利用NOx去除催化剂和还原剂的排气净化系统设置有还原剂加热器，该还原剂加热器用于将发动机冷却介质的热量和存储在还原剂罐中的还原剂储存在还原剂中， 关闭装置，用于控制将发动机冷却介质引入还原剂加热器中。 当发动机冷却介质的温度高于第一预定温度时，罐中的还原剂的温度低于第二预定温度，并且驾驶室中的温度低于第三预定温度，则控制器切换 开/关装置进入关闭状态，以增加引导到加热装置的热交换器的发动机冷却介质的流量。

公开(公告)号：US08276370B2

公开(公告)日：2012-10-02

申请号：US12600086

申请日：2008-05-28

申请人： Shohei Kamiya ,  Kazunori Nakamura ,  Yasushi Arai

发明人： Shohei Kamiya ,  Kazunori Nakamura ,  Yasushi Arai

IPC分类号： F01N3/20

CPC分类号： B01D53/9409 ,  B01D2251/2067 ,  B01D2257/404 ,  B01D2258/01 ,  B60H1/00271 ,  E02F9/0858 ,  E02F9/0883 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F01P2060/08 ,  F01P2060/18 ,  Y02A50/2325 ,  Y02T10/24

摘要： A construction machine includes a front working implement operable as a result of driving of an engine, a urea SCR catalyst arranged in an exhaust gas line from the engine to purify and reduce nitrogen oxides in exhaust gas, an aqueous urea solution tank for storing an aqueous urea solution, a temperature detector for detecting a temperature of the aqueous urea solution, an air conditioner for air-conditioning an operator's cab, and a warm/cold air guiding device for guiding warm/cold air, which has been blown out of the air conditioner, to the aqueous urea solution tank in accordance with the temperature of the aqueous urea solution. The warm/cold air guiding device includes a controller for outputting a warm air control signal or cold air control signal, which corresponds to a temperature of the warm/cold air blown out of the air conditioner.

摘要翻译： 一种施工机械，包括作为发动机驱动而可操作的前部作业机构，从发动机排出的排气管路中的尿素SCR催化剂，对排气中的氮氧化物进行净化和还原，将尿素水溶液储存于水 尿素溶液，用于检测尿素水溶液的温度的温度检测器，用于对驾驶室进行空调的空气调节器以及用于引导已经吹出空气的温/冷空气的温/冷空气引导装置 调节剂，根据尿素水溶液的温度向尿素水溶液罐中加入。 暖/冷空气引导装置包括用于输出对应于从空调吹出的暖/冷空气的温度的暖风控制信号或冷空气控制信号的控制器。

公开(公告)号：US20100212297A1

公开(公告)日：2010-08-26

申请号：US12600086

申请日：2008-05-28

申请人： Shohei Kamiya ,  Kazunori Nakamura ,  Yasushi Arai

发明人： Shohei Kamiya ,  Kazunori Nakamura ,  Yasushi Arai

IPC分类号： F01N3/20

CPC分类号： B01D53/9409 ,  B01D2251/2067 ,  B01D2257/404 ,  B01D2258/01 ,  B60H1/00271 ,  E02F9/0858 ,  E02F9/0883 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F01P2060/08 ,  F01P2060/18 ,  Y02A50/2325 ,  Y02T10/24

摘要： [Problem] To provide a construction machine capable of realizing with fewer components temperature control of a reducing agent in a reducing agent tank without arranging any heat exchanger in the reducing agent tank.[Solution] A construction machine is designed to have a construction provided with a front working implement operable as a result of driving of an engine (4), a urea SCR catalyst (20) arranged in an exhaust gas line (19) from the engine (4) to purify and reduce nitrogen oxides in exhaust gas, an aqueous urea solution tank (23) in which an aqueous urea solution to be fed to the exhaust gas line (19) is stored, a temperature detector (24) for detecting a temperature of the aqueous urea solution in the aqueous urea solution tank (23), an air conditioner (21) for air-conditioning an operator's cab (3), and a warm/cold air guiding means for guiding warm/cold air, which has been blown out of the air conditioner (21), to the aqueous urea solution tank (23) in accordance with the temperature of the aqueous urea solution as detected by the temperature detector (24). The warm/cold air guiding means includes a controller (31) for outputting a warm air signal or cold air signal, which corresponds to a temperature of the warm/cold air blown out of the air conditioner (21), as a control signal.

摘要翻译： [问题]提供一种能够实现减少剂箱中的还原剂温度控制较少的构造机械，而不需要在还原剂罐中设置任何热交换器。 [解决方案]一种施工机械被设计成具有设置有由作为发动机（4）的驱动而可操作的前部工作装置的结构，布置在来自发动机的排气管线（19）中的尿素SCR催化剂（20） （4）净化和还原废气中的氮氧化物，其中存储有供给到排气管线（19）的尿素水溶液的尿素水溶液罐（23），用于检测废气管线（19）的温度检测器（24） 尿素水溶液箱（23）中的尿素水溶液的温度，用于空调驾驶室（3）的空气调节器（21）和用于引导暖/冷空气的暖/冷空气引导装置，其具有 根据由温度检测器（24）检测的尿素水溶液的温度，从空调（21）吹出尿素水溶液罐（23）。 暖/冷空气引导装置包括用于输出对应于从空调（21）吹出的暖/冷空气的温度的暖空气信号或冷空气信号作为控制信号的控制器（31）。

公开(公告)号：US20100170227A1

公开(公告)日：2010-07-08

申请号：US12663127

申请日：2008-10-22

申请人： Hidenobu Tsukada ,  Kazunori Nakamura ,  Shohei Kamiya

发明人： Hidenobu Tsukada ,  Kazunori Nakamura ,  Shohei Kamiya

IPC分类号： F01N9/00 ,  F01N3/023 ,  F01N3/10 ,  F01N3/035

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。

公开(公告)号：US20100058743A1

公开(公告)日：2010-03-11

申请号：US12447554

申请日：2008-07-17

申请人： Hidenobu Tsukada ,  Kazunori Nakamura ,  Shohei Kamiya

发明人： Hidenobu Tsukada ,  Kazunori Nakamura ,  Shohei Kamiya

IPC分类号： F01N9/00 ,  F01N3/023

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。

公开(公告)号：US20100038162A1

公开(公告)日：2010-02-18

申请号：US12519450

申请日：2008-03-06

申请人： Shohei Kamiya ,  Yasushi Arai ,  Kazunori Nakamura

发明人： Shohei Kamiya ,  Yasushi Arai ,  Kazunori Nakamura

IPC分类号： B60K5/08 ,  F01N3/10 ,  F15B21/00

CPC分类号： B01D53/9431 ,  B01D53/86 ,  B01D2258/012 ,  B01D2259/4566 ,  E02F9/00 ,  E02F9/0808 ,  E02F9/0883 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F15B21/06 ,  Y02A50/2325 ,  Y02T10/24

摘要： A ureal water tank (28), a storage of an aqueous urea solution, is located within a utility room (6G) in a right front section of a revolving frame (6), which is readily accessible from outside. In this instance, among a plurality of operating oil conduits (18), a working mechanism operating conduit (21) which supplies operating oil to a boom cylinder (5D) of a working mechanism (5) is arranged to run along exterior surfaces of the ureal water tank (28). Therefore, even if the ureal water tank (28) is located in a place with no heat source, the aqueous urea solution in the ureal water tank (28) can be stably kept in a heated state by utilization of heat of operating oil in circulation through the working mechanism operating conduit (21).

摘要翻译： 位于旋转框架（6）的右前部的多功能室（6G）内的尿素水溶液（28）的储存室可容易地从外部接近。 在这种情况下，在多个操作油管道（18）中，设置有向工作机构（5）的动臂缸（5D）供给工作油的作业机构操作导管（21），沿着 尿液水箱（28）。 因此，即使尿液水箱（28）位于没有热源的地方，也可以通过利用循环中的工作油的热量将尿素水溶液（28）中的尿素水溶液稳定地保持在加热状态 通过工作机构操作导管（21）。