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：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。