The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2016

Filed:

Nov. 19, 2012
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Manabu Himoto, Kyotanabe, JP;

Osamu Nishimura, Joyo, JP;

Tatsuya Watahiki, Oyama, JP;

Hiroyuki Chino, Oyama, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 13/08 (2010.01); F01N 3/021 (2006.01); F01N 3/20 (2006.01); B60K 13/04 (2006.01); F01N 3/28 (2006.01); E02F 9/08 (2006.01); F01N 13/18 (2010.01);
U.S. Cl.
CPC ...
F01N 13/08 (2013.01); B60K 13/04 (2013.01); E02F 9/0866 (2013.01); F01N 3/021 (2013.01); F01N 3/2066 (2013.01); F01N 3/28 (2013.01); F01N 13/1811 (2013.01);
Abstract

An exhaust treatment unit treats an exhaust gas from an engine of a work vehicle. The exhaust treatment unit includes a diesel particulate filter device, a selective catalytic reduction device, and a connection pipe. The diesel particulate filter device treats the exhaust gas. The selective catalytic reduction device treats the exhaust gas. The connection pipe connects the diesel particulate filter device and the selective catalytic reduction device. The connection pipe includes a plurality of spherical joints, a first pipe part on a first end, and a second pipe part on a second end. The plurality of spherical joints include a first spherical joint mounted between the first pipe part and the diesel particulate filter device, a second spherical joint mounted between the second pipe part and the selective catalytic reduction device, and a third spherical joint mounted between the first and second pipe parts.


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