Engine unit and work vehicle

Patent metadata

Field	Value
Publication number	US-9316136-B2
Application number	US-201314366088-A
Country	US
Kind code	B2
Filing date	May 14, 2013
Priority date	Jul 5, 2012
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

Two sets of assemblies are arranged such that a diesel particulate filter device of an assembly as a first set, a selective catalytic reduction device of the assembly as the first set, a selective catalytic reduction device of an assembly as a second set, and a diesel particulate filter device of the assembly as the second set are located next to each other in this order. Respective first and second connection pipes are routed through a region directly underneath an arrangement region where the two selective catalytic reduction devices and the like are arranged, and connected to the respective diesel particulate filter devices. Thereby, an engine unit and a work vehicle which facilitate connection between an engine and an exhaust gas treatment structure and can reduce a load on the first and second connection pipes due to vibration can be achieved.

First claim

The invention claimed is:

1. An engine unit, comprising:
an engine;
a first exhaust gas treatment unit arranged above said engine and including a first exhaust gas treatment device and a second exhaust gas treatment device;
a second exhaust gas treatment unit arranged above said engine and including a third exhaust gas treatment device and a fourth exhaust gas treatment device;
a first connection pipe having an expandable first bellows part and guiding exhaust gas from said…

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Kobayashi Tsuyoshi
• Tsutsumi Katsuhiro
• Miyamoto Hirofumi

Classifications

• F01N13/011

  Mechanical Engineering · mapped topic

• F01N2590/08

  Mechanical Engineering · mapped topic

• F01N13/08

  Mechanical Engineering · mapped topic

• F01N2610/1406

  Mechanical Engineering · mapped topic

• F01N13/1805

  Mechanical Engineering · mapped topic