公开(公告)号：US10550545B2

公开(公告)日：2020-02-04

申请号：US15526842

申请日：2015-02-23

Applicant: KOMATSU LTD.

Inventor： Yuushi Oshikawa ,  Takashi Noda ,  Taira Ozaki ,  Takuya Uemura ,  Hiroshi Itogawa

IPC: E02F9/00 ,  E02F9/08 ,  E02F9/16 ,  E02F9/20

Abstract: A work vehicle includes a vehicle body, a travel device, a driving source, and a cooling device. The travel device is provided below the vehicle body. The driving source is disposed in a front part of the vehicle body. The driving source generates driving power for the travel device. The cooling device is disposed on one side in the vehicle width direction of the vehicle body and rearward of the driving source.

公开(公告)号：US09347350B2

公开(公告)日：2016-05-24

申请号：US14112395

申请日：2013-03-29

Applicant: KOMATSU LTD.

Inventor： Taira Ozaki ,  Hiroshi Nakagami ,  Hironori Yamamitsu ,  Kanji Namimatsu ,  Hiroshi Ohta ,  Kenji Matsubara

IPC: F01N1/00 ,  F01N3/08 ,  F01N3/10 ,  F01N13/18 ,  F01N3/021 ,  F01N13/00

CPC classification number: F01N3/08 ,  F01N3/021 ,  F01N3/10 ,  F01N13/009 ,  F01N13/1816 ,  F01N13/1822 ,  F01N2470/12 ,  F01N2590/08 ,  Y02T10/20

Abstract: An engine unit includes an engine, an exhaust gas treatment device and a connecting pipe. The engine has an exhaust gas port. The exhaust gas treatment device is arranged above the engine. The connecting pipe connects the exhaust gas port and the exhaust gas treatment device. The connecting pipe has an expandable-contractible bellows portion. The bellows portion has a linear form following the upward-downward direction. The lower end portion of the bellows portion is positioned lower than at least a part of the exhaust gas port.

Abstract translation: 发动机单元包括发动机，废气处理装置和连接管。 发动机有排气口。 排气处理装置设置在发动机的上方。 连接管连接排气口和废气处理装置。 连接管具有可膨胀收缩的波纹管部分。 波纹管部分沿着向上 - 向下的方向具有线性形式。 波纹管部的下端部位于排气口的至少一部分的下方。

公开(公告)号：US09145806B2

公开(公告)日：2015-09-29

申请号：US14239876

申请日：2013-09-19

Applicant: KOMATSU LTD.

Inventor： Hiroshi Nakagami ,  Taira Ozaki ,  Hironori Yamamitsu ,  Takashi Katou ,  Yoshihisa Fujimoto

IPC: F01N3/00 ,  F01N3/20 ,  F01N3/10 ,  F01N3/24 ,  F01N13/18 ,  F01N3/021

CPC classification number: F01N3/2046 ,  F01N3/021 ,  F01N3/10 ,  F01N3/2066 ,  F01N3/24 ,  F01N13/1805 ,  F01N2590/08 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust treatment unit for a work vehicle includes a selective catalytic reduction apparatus, a connection pipe, an ejection apparatus attached to the connection pipe, a first pipe section that guides coolant to the ejection apparatus, a second pipe section that discharges coolant from the ejection apparatus, first and second retaining sections, and a coolant pump. The ejection apparatus ejects reducing agent into exhaust supplied to the selective catalytic reduction apparatus. The first and second retaining sections retain coolant and are connected to the first and second pipe sections above the ejection apparatus, respectively. The coolant pump is driven by an engine driving force and supplies the coolant to the ejection apparatus via the first pipe section. The first and second pipe sections extend upward from first and second connecting sections of the first and second pipe sections and the ejection apparatus toward the first and second retaining sections, respectively.

Abstract translation: 作业车辆的排气处理单元包括选择性催化还原装置，连接管，安装在连接管上的排出装置，将冷却剂引导至排出装置的第一管段，将排出的冷却剂从排出口排出的第二管段 设备，第一和第二保持部分以及冷却剂泵。 喷射装置将还原剂喷射到供给到选择性催化还原装置的废气中。 第一和第二保持部分保持冷却剂并且分别连接到喷射装置上方的第一和第二管部分。 冷却剂泵由发动机驱动力驱动，并通过第一管段将冷却剂供给到喷射装置。 第一和第二管段分别从第一和第二管段的第一和第二连接部分和喷射装置朝向第一和第二保持部分向上延伸。

公开(公告)号：US08827029B1

公开(公告)日：2014-09-09

申请号：US14005981

申请日：2013-03-29

Applicant: Komatsu Ltd.

Inventor： Hiroshi Nakagami ,  Taira Ozaki ,  Hironori Yamamitsu

IPC: B60K13/04 ,  E02F9/08

CPC classification number: E02F9/0866 ,  B60K11/04 ,  B60K13/04 ,  B60Y2200/411 ,  E02F3/7618 ,  F01N13/1805 ,  F01N2340/04

Abstract: In the engine compartment of a bulldozer the radiator is arranged forward of the engine. An exhaust gas treatment unit is arranged above the engine. A first exhaust gas treatment device of the exhaust gas treatment unit is arranged such that the longitudinal direction of the first exhaust gas treatment device follows the forward-backward direction of the vehicle. A second exhaust gas treatment device of the exhaust gas treatment unit is positioned to the side of the first exhaust gas treatment device, and arranged such that the longitudinal direction of the first exhaust gas treatment device follows the forward-backward direction of the vehicle. The air cleaner is arranged between the radiator and the exhaust gas treatment unit in the forward-backward direction of the vehicle.

Abstract translation: 在推土机的发动机舱中，散热器布置在发动机的前方。 在发动机上方设有排气处理单元。 排气处理单元的第一废气处理装置被配置成使得第一废气处理装置的长度方向沿着车辆的前后方向。 排气处理单元的第二废气处理装置位于第一废气处理装置的侧面，并且配置成使得第一排气处理装置的长度方向沿车辆的前后方向。 空气滤清器在车辆的前后方向上配置在散热器和废气处理单元之间。

公开(公告)号：US10518637B2

公开(公告)日：2019-12-31

申请号：US15557905

申请日：2016-10-20

Applicant: KOMATSU LTD.

Inventor： Takuya Uemura ,  Tomoaki Tsuji ,  Taira Ozaki

IPC: B60K15/063 ,  B62D55/06 ,  E02F9/26 ,  E02F3/815 ,  E02F5/32

Abstract: A crawler belt-type tractor includes a vehicle body, a travel device, an engine, and a fuel tank. The travel device is attached to the vehicle body. The travel device includes a crawler belt. The engine generates driving power for driving the travel device. The fuel tank is disposed in a rear portion of the vehicle body. The fuel tank stores fuel for the engine. The rear end of the fuel tank is positioned rearward of the rear end of the crawler belt.

公开(公告)号：US10207577B2

公开(公告)日：2019-02-19

申请号：US15553325

申请日：2015-12-08

Applicant: KOMATSU LTD.

Inventor： Yuushi Oshikawa ,  Takashi Noda ,  Taira Ozaki ,  Takuya Uemura ,  Yuya Takahashi ,  Masami Hirayama ,  Hiroshi Itogawa

IPC: B60K11/08 ,  B60K11/04 ,  B60H1/00 ,  B62D49/00 ,  E02F9/08 ,  E02F3/76 ,  E02F9/20 ,  B60K11/06

Abstract: A tractor includes a vehicle body, an engine, a cooling device, a fan, and a first exterior member. The engine is disposed on the front side of the vehicle body. The cooling device is disposed behind the engine. The fan is arranged to produce cooling air for the cooling device. The first exterior member is disposed on the front side of the vehicle body and covers the engine, the cooling device, and the fan. A first discharge port is arranged to discharge the cooling air and is provided in a first side surface of the first exterior member. The front side surface is positioned on a first side in the vehicle left-right direction. The front surface of the first exterior member includes no opening.

公开(公告)号：US20150078967A1

公开(公告)日：2015-03-19

申请号：US14239876

申请日：2013-09-19

Applicant: KOMATSU LTD.

Inventor： Hiroshi Nakagami ,  Taira Ozaki ,  Hironori Yamamitsu ,  Takashi Katou ,  Yoshihisa Fujimoto

IPC: F01N3/20

CPC classification number: F01N3/2046 ,  F01N3/021 ,  F01N3/10 ,  F01N3/2066 ,  F01N3/24 ,  F01N13/1805 ,  F01N2590/08 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust treatment unit for a work vehicle includes a selective catalytic reduction apparatus, a connection pipe, an ejection apparatus attached to the connection pipe, a first pipe section that guides coolant to the ejection apparatus, a second pipe section that discharges coolant from the ejection apparatus, first and second retaining sections, and a coolant pump. The ejection apparatus ejects reducing agent into exhaust supplied to the selective catalytic reduction apparatus. The first and second retaining sections retain coolant and are connected to the first and second pipe sections above the ejection apparatus, respectively. The coolant pump is driven by an engine driving force and supplies the coolant to the ejection apparatus via the first pipe section. The first and second pipe sections extend upward from first and second connecting sections of the first and second pipe sections and the ejection apparatus toward the first and second retaining sections, respectively.

Abstract translation: 作业车辆的排气处理单元包括选择性催化还原装置，连接管，安装在连接管上的排出装置，将冷却剂引导至排出装置的第一管段，将排出的冷却剂从排出口排出的第二管段 设备，第一和第二保持部分以及冷却剂泵。 喷射装置将还原剂喷射到供给到选择性催化还原装置的废气中。 第一和第二保持部分保持冷却剂并且分别连接到喷射装置上方的第一和第二管部分。 冷却剂泵由发动机驱动力驱动，并通过第一管段将冷却剂供给到喷射装置。 第一和第二管段分别从第一和第二管段的第一和第二连接部分和喷射装置朝向第一和第二保持部分向上延伸。

公开(公告)号：US09856996B2

公开(公告)日：2018-01-02

申请号：US14112122

申请日：2013-03-29

Applicant: KOMATSU LTD.

Inventor： Taira Ozaki ,  Hiroshi Nakagami ,  Hironori Yamamitsu ,  Kanji Namimatsu ,  Hiroshi Ohta ,  Kenji Matsubara

IPC: F01N3/10 ,  F16L3/08 ,  E02F9/08 ,  F01N13/18 ,  F01N13/00 ,  B60K13/04 ,  F01N3/20 ,  F01N3/021

CPC classification number: F16L3/08 ,  B60K13/04 ,  B60Y2200/411 ,  E02F9/0866 ,  F01N3/021 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/1805 ,  F01N13/1816 ,  F01N13/1822 ,  F01N2590/08 ,  Y02A50/2325

Abstract: An exhaust gas treatment unit includes an exhaust gas treatment device, a bracket and a connecting pipe. The exhaust gas treatment device is mounted on a bracket. The connecting pipe is connected to the exhaust gas treatment device. The connecting pipe directs exhaust gas to the exhaust gas treatment device. The connecting pipe may include a supporting portion and a pipe portion, with the supporting portion supporting the bracket and the pipe portion being integrated with the supporting portion. Alternatively, the exhaust gas treatment unit may further include a supporting member having a supporting portion supporting the bracket and a pipe portion integrated with the supporting portion, with the pipe portion connected to the connecting pipe.

公开(公告)号：US20140291058A1

公开(公告)日：2014-10-02

申请号：US14110042

申请日：2013-03-29

Applicant: KOMATSU LTD.

Inventor： Hiroshi Nakagami ,  Taira Ozaki ,  Akihito Ounishi

IPC: E02F9/08 ,  E02F3/76

CPC classification number: E02F9/0891 ,  B60K13/04 ,  B60Y2200/411 ,  E02F3/7618 ,  E02F9/0866 ,  F01N13/1805 ,  F01N2340/04

Abstract: A bulldozer includes an engine, first and second exhaust treatment apparatuses arranged above the engine, a relay connection pipe connecting the first and second apparatuses, and an engine hood covering upper parts of the first and second apparatuses. The relay connection pipe has a cylindrical shaped main section, a first section connecting the main section and the first apparatus, and a second section connecting the main section and the second apparatus. The lower end of the main section is positioned above upper ends of the first and second apparatuses. The upper surface of the hood has a convex section protruding above the relay connection pipe and a base section formed integrally with the convex section below the convex section. At least a portion of a line segment extending along the upper edge of the main section overlaps an upper surface part of the convex section in a bulldozer top view.

Abstract translation: 推土机包括设置在发动机上方的发动机，第一和第二排气处理装置，连接第一和第二装置的中继连接管和覆盖第一和第二装置的上部的发动机罩。 继电器连接管具有圆筒形的主要部分，连接主部分和第一装置的第一部分以及连接主部分和第二装置的第二部分。 主部分的下端位于第一和第二装置的上端之上。 罩的上表面具有突出于继电器连接管上方的凸起部分和与凸部下方的凸部一体形成的基部。 沿着主部分的上边缘延伸的线段的至少一部分在推土机顶视图中与凸部的上表面部分重叠。

公开(公告)号：US20140239625A1

公开(公告)日：2014-08-28

申请号：US14126480

申请日：2013-02-22

Applicant: KOMATSU LTD.

Inventor： Taira Ozaki ,  Hiroshi Nakagami ,  Shuta Matsumura

IPC: E02F9/08 ,  E02F9/16

CPC classification number: E02F9/0883 ,  E02F3/80 ,  E02F9/16

Abstract: A bulldozer includes a cab, a fuel tank arranged to a rear of the cab, and first and second engaging members. The cab includes a driver seat and an air-conditioning cooling module projecting rearward from an upper end portion of the cab. The first and second engaging members are provided on the fuel tank, with each having an engaging part to engage onto a suspension member. The engaging part of the first engaging member is positioned on a first lateral side of a first straight line connecting a first lateral side end of the air-conditioning cooling module and a first lateral side end of the fuel tank. The engaging part of the second engaging member is positioned on a second lateral side of a second straight line connecting a second lateral side end of the air-conditioning cooling module, and a second lateral side end of the fuel tank.

Abstract translation: 推土机包括驾驶室，布置在驾驶室后部的燃料箱以及第一和第二接合构件。 驾驶室包括驾驶员座和从驾驶室的上端部向后突出的空调冷却模块。 第一和第二接合构件设置在燃料箱上，每个具有接合部分以接合到悬挂构件上。 第一接合构件的接合部分位于连接空调冷却组件的第一横向侧端和燃料箱的第一侧面端的第一直线的第一侧面上。 第二接合构件的接合部分位于连接空调冷却组件的第二横向侧端和燃料箱的第二侧面端的第二直线的第二侧面上。