公开(公告)号：US08955638B2

公开(公告)日：2015-02-17

申请号：US14118409

申请日：2012-11-20

Applicant: Komatsu Ltd.

Inventor： Takanori Hata ,  Hiroshi Yamashita ,  Kazuyoshi Morimoto ,  Huzhe Yang ,  Gary Ryan

IPC: E02F9/08 ,  E02F9/18

CPC classification number: E02F9/0866 ,  E02F9/0883 ,  E02F9/18 ,  F01N3/2066 ,  F01N13/1822 ,  F01N2340/04 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/14 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust processing unit includes a selective catalytic reduction apparatus which processes exhaust from an engine. A reducing agent injection apparatus is attached to the exhaust processing unit. The reducing agent injection apparatus injects a reducing agent which is supplied to the selective catalytic reduction apparatus. The reducing agent tank and the reducing agent supply pump are arranged outside the engine compartment. The reducing agent tank retains the reducing agent. The reducing agent supply pump supplies the reducing agent from the reducing agent tank to the reducing agent injection apparatus. The reducing agent pipe connects the reducing agent supply pump and the reducing agent injection apparatus. The revolving frame includes a pipe frame. The reducing agent pipe is arranged from the reducing agent supply pump to the reducing agent injection apparatus so as to pass through the inner space of the pipe frame.

Abstract translation: 排气处理单元包括处理来自发动机的排气的选择性催化还原装置。 还原剂注入装置附接到排气处理单元。 还原剂注入装置注入供给到选择性催化还原装置的还原剂。 还原剂罐和还原剂供应泵布置在发动机室外。 还原剂罐保留还原剂。 还原剂供给泵将还原剂从还原剂罐供给到还原剂注入装置。 还原剂管连接还原剂供给泵和还原剂注入装置。 旋转框架包括管道框架。 还原剂管从还原剂供给泵配置到还原剂注入装置，以通过管框的内部空间。

公开(公告)号：US20140196975A1

公开(公告)日：2014-07-17

申请号：US14118409

申请日：2012-11-20

Applicant: KOMATSU LTD.

Inventor： Takanori Hata ,  Hiroshi Yamashita ,  Kazuyoshi Morimoto ,  Huzhe Yang ,  Gary Ryan

IPC: E02F9/08 ,  E02F9/18

CPC classification number: E02F9/0866 ,  E02F9/0883 ,  E02F9/18 ,  F01N3/2066 ,  F01N13/1822 ,  F01N2340/04 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/14 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust processing unit includes a selective catalytic reduction apparatus which processes exhaust from an engine. A reducing agent injection apparatus is attached to the exhaust processing unit. The reducing agent injection apparatus injects a reducing agent which is supplied to the selective catalytic reduction apparatus. The reducing agent tank and the reducing agent supply pump are arranged outside the engine compartment. The reducing agent tank retains the reducing agent. The reducing agent supply pump supplies the reducing agent from the reducing agent tank to the reducing agent injection apparatus. The reducing agent pipe connects the reducing agent supply pump and the reducing agent injection apparatus. The revolving frame includes a pipe frame. The reducing agent pipe is arranged from the reducing agent supply pump to the reducing agent injection apparatus so as to pass through the inner space of the pipe frame.

Abstract translation: 排气处理单元包括处理来自发动机的排气的选择性催化还原装置。 还原剂注入装置附接到排气处理单元。 还原剂注入装置注入供给到选择性催化还原装置的还原剂。 还原剂罐和还原剂供应泵布置在发动机室外。 还原剂罐保留还原剂。 还原剂供给泵将还原剂从还原剂罐供给到还原剂注入装置。 还原剂管连接还原剂供给泵和还原剂注入装置。 旋转框架包括管道框架。 还原剂管从还原剂供给泵配置到还原剂注入装置，以通过管框的内部空间。