EXHAUST GAS POST-TREATMENT UNIT AND WORKING VEHICLE

WIPO Patent Application WO/2017/187640

A1

In the present invention, an exhaust gas post-treatment unit (20) is provided with a cooling water passage (25) for guiding cooling water to a reducing agent injection device (24). The cooling water passage (25) includes: a first flow passage (F1) which connects to an internal flow passage (24a) of the reducing agent injection device (24), and a second flow passage (F2) and a third flow passage (F3) which branch from the first flow passage (F1). A branch point (FP), where the first flow passage (F1) branches into the second flow passage (F2) and the third flow passage (F3), is positioned higher than a connection part of the reducing agent injection device (24) and the first flow passage (F1). The third flow passage (F3) extends higher than the second flow passage (F2) from the branch point (FP). The second flow passage (F2) and the third flow passage (F3) merge at the opposite side of the branch point (FP).

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JP6120333	Exhaust emission control system
JP2022186727	TRACTOR

MIZUNO HIROYUKI (JP)
IDE SATORU (JP)
KODANI DAISUKE (JP)

PCT/JP2016/063500

November 02, 2017

April 28, 2016

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KOMATSU MFG CO LTD (JP)

F01N3/08; B01D53/90; B01D53/94; E02F9/00; F01P3/12; F01P11/00

WO2014141513A1	2014-09-18
WO2014141478A1	2014-09-18

JP2015137635A	2015-07-30
JP2007009752A	2007-01-18
JP2014005786A	2014-01-16

SHINJYU GLOBAL IP (JP)

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