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.

公开(公告)号：US09726065B2

公开(公告)日：2017-08-08

申请号：US14235142

申请日：2013-09-25

Applicant: KOMATSU LTD.

Inventor： Kiichirou Kouno ,  Ken Itou ,  Jin Yogita ,  Kozo Okuda ,  Yasuyuki Onodera ,  Hideo Oguri ,  Shouhei Nagasaka ,  Minato Tomuro

IPC: F01N3/00 ,  F01N3/20 ,  E02F3/76 ,  E02F9/08 ,  F01N3/28 ,  F01N9/00

CPC classification number: F01N3/208 ,  E02F3/7609 ,  E02F9/0866 ,  F01N3/2066 ,  F01N3/28 ,  F01N9/00 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/105 ,  F01N2610/14 ,  F01N2610/148 ,  F01N2900/1811 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A work vehicle includes a vehicle body, a guiding pipe, a first heating section, and a second heating section. The vehicle body has a partition wall that partitions a space in an inner section into a first region and a second region. The guiding pipe is configured to guide a reducing agent. The guiding pipe has a first pipe section and a second pipe section. The first pipe section is positioned inside the first region. The second pipe section is positioned in the second region. The first heating section heats the first pipe section. The second heating section heats the second pipe section and adjusts the temperature independently from the first heating section.

公开(公告)号：US09382690B2

公开(公告)日：2016-07-05

申请号：US13978306

申请日：2012-11-19

Applicant: Komatsu Ltd.

Inventor： Kozo Okuda ,  Tadashi Iijima ,  Godo Ozawa ,  Muneo Harada ,  Naoto Ikeda

IPC: E02F9/08 ,  B60K13/04 ,  F01N13/02 ,  F01N13/18 ,  B60K5/12 ,  F01N3/035

CPC classification number: E02F9/0866 ,  B60K5/12 ,  B60K13/04 ,  F01N3/035 ,  F01N13/02 ,  F01N13/1805 ,  F01N2470/18 ,  F01N2470/22

Abstract: An engine unit mounted to a vehicle frame, the engine unit includes: an engine; an engine support mechanism to be coupled to the vehicle frame, with at least one vibration absorbing mechanism disposed on each of both sides of the engine in an orthogonal direction to a crankshaft of the engine, to support the engine; an aftertreatment device to purify exhaust gas emitted from the engine; a base bracket provided to the engine support mechanism; and an upper bracket detachably fixed and mounted to the base bracket, the upper bracket supporting the aftertreatment device.

Abstract translation: 发动机单元安装在车架上，发动机单元包括：发动机; 发动机支撑机构，其耦合到车架，其中至少一个振动吸收机构设置在与发动机的曲轴正交的方向上的发动机的两侧的每一侧上，以支撑发动机; 用于净化从发动机排出的废气的后处理装置; 提供给发动机支撑机构的基座支架; 以及可拆卸地固定并安装到所述基座支架的上支架，所述上支架支撑所述后处理装置。

公开(公告)号：US20150211209A1

公开(公告)日：2015-07-30

申请号：US13978306

申请日：2012-11-19

Applicant: KOMATSU LTD.

Inventor： Kozo Okuda ,  Tadashi Iijima ,  Godo Ozawa ,  Muneo Harada ,  Naoto Ikeda

IPC: E02F9/08 ,  B60K5/12 ,  B60K13/04 ,  F01N3/035

CPC classification number: E02F9/0866 ,  B60K5/12 ,  B60K13/04 ,  F01N3/035 ,  F01N13/02 ,  F01N13/1805 ,  F01N2470/18 ,  F01N2470/22

Abstract: An engine unit mounted to a vehicle frame, the engine unit includes: an engine; an engine support mechanism to be coupled to the vehicle frame, with at least one vibration absorbing mechanism disposed on each of both sides of the engine in an orthogonal direction to a crankshaft of the engine, to support the engine; an aftertreatment device to purify exhaust gas emitted from the engine; a base bracket provided to the engine support mechanism; and an upper bracket detachably fixed and mounted to the base bracket, the upper bracket supporting the aftertreatment device.

Abstract translation: 发动机单元安装在车架上，发动机单元包括：发动机; 发动机支撑机构，其耦合到车架，其中至少一个振动吸收机构设置在与发动机的曲轴正交的方向上的发动机的两侧的每一侧上，以支撑发动机; 用于净化从发动机排出的废气的后处理装置; 提供给发动机支撑机构的基座支架; 以及可拆卸地固定并安装到所述基座支架的上支架，所述上支架支撑所述后处理装置。

公开(公告)号：US09074343B2

公开(公告)日：2015-07-07

申请号：US14236672

申请日：2013-09-25

Applicant: KOMATSU LTD.

Inventor： Kozo Okuda ,  Tsuyoshi Kobayashi

IPC: B60K13/04 ,  E02F9/08 ,  E02F3/30

CPC classification number: E02F9/0866 ,  B60K13/04 ,  B60Y2200/412 ,  E02F3/30 ,  E02F9/0875 ,  E02F9/0883 ,  E02F9/0891 ,  F01N3/2066 ,  F01N2340/04 ,  F01N2610/02 ,  F01N2610/14 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A working vehicle includes a vehicle, an engine, an exhaust treatment apparatus, a connecting pipe, a reducing agent injection apparatus, a reducing agent pump and a guiding pipe guiding reducing agent from the pump to the injection apparatus. The engine, exhaust treatment apparatus, connecting pipe, and reducing agent injection apparatus are arranged inside an engine room of the vehicle body. The engine has a crank shaft, and intake and exhaust manifolds arranged on first and second direction sides of the crank shaft, respectively. A first accommodating space is positioned on a first direction side of the engine room. A reducing agent pump is arranged inside the first accommodating space. A guiding pipe is arranged so as to pass inside the engine room on the first direction side with regard to the crank shaft.

Abstract translation: 工作车辆包括从泵到注射装置的车辆，发动机，排气处理装置，连接管，还原剂注入装置，还原剂泵和引导管引导还原剂。 发动机，排气处理装置，连接管和还原剂注入装置布置在车身的发动机室内。 发动机具有曲柄轴，排气歧管分别设置在曲轴的第一和第二方向侧。 第一容纳空间位于发动机室的第一方向侧。 还原剂泵布置在第一容纳空间的内部。 引导管布置成相对于曲轴在第一方向侧通过发动机室内。

公开(公告)号：US20150090517A1

公开(公告)日：2015-04-02

申请号：US14235173

申请日：2013-09-27

Applicant: Komatsu Ltd.

Inventor： Kozo Okuda ,  Naoto Nakamura ,  Kiichirou Kouno ,  Kenji Ohiwa

IPC: E02F9/08

CPC classification number: E02F9/0883 ,  B60L11/12 ,  B60L11/1877 ,  B60L11/1879 ,  B60L2200/40 ,  B60L2270/12 ,  E02F9/0866 ,  F01N3/2066 ,  F01N13/18 ,  F01N2590/08 ,  F01N2610/1406 ,  Y02A50/2325 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/7077

Abstract: A work vehicle includes a reducing agent tank, a battery, a reducing agent tank mounting member, a battery cover and a first guide member. The battery and the tank are positioned in a row. The mounting member has a bottom plate, and a partition plate extending upward from the bottom plate between the tank and the battery. The tank is mounted on the bottom plate. The battery cover has an upper plate above the battery, and a side plate extending downward from a side of the upper plate between the tank and the battery. The first guide member extends from the side plate toward the tank and slopes downward. Preferably, a first end of a second guide member disposed below the first guide member is positioned closer to the battery than a distal end of the first guide member, with the second guide member sloping downward toward the tank.

Abstract translation: 工作车辆包括还原剂罐，电池，还原剂罐安装构件，电池盖和第一引导构件。 电池和水箱位于一排。 安装构件具有底板和从罐和电池之间的底板向上延伸的隔板。 油箱安装在底板上。 电池盖具有在电池上方的上板，以及从罐和电池之间的上板侧向下延伸的侧板。 第一引导构件从侧板向罐延伸并向下倾斜。 优选地，设置在第一引导构件下方的第二引导构件的第一端被定位成比第一引导构件的远端更靠近电池，其中第二引导构件向下倾斜朝向水箱。