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.
Patent No.:
Date of Patent:
Jul. 18, 2017
Filed:
Nov. 25, 2015
Applicant:
Komatsu Ltd., Minato-ku, Tokyo, JP;
Inventors:
Akira Ito, Oyama, JP;
Akihiro Miki, Oyama, JP;
Takeo Oomori, Oyama, JP;
Mitsuyoshi Kimura, Utsunomiya, JP;
Assignee:
Komatsu Ltd., Minato-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/08 (2006.01); F01N 3/28 (2006.01); F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 3/36 (2006.01); F01N 11/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 3/106 (2013.01); F01N 3/206 (2013.01); F01N 3/36 (2013.01); F01N 11/002 (2013.01); F01N 2560/026 (2013.01); F01N 2560/06 (2013.01); F01N 2570/14 (2013.01); F01N 2610/02 (2013.01); F01N 2610/146 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/1404 (2013.01);
Abstract
An exhaust purifying device includes a throttle valve, a DOC device, an SCR device, a fuel injector, an inlet temperature sensor, an outlet temperature sensor, and a controller. The controller includes a heatup-control execution control unit configured to perform a regeneration treatment for removing a urea deposit when a predetermined heatup control execution condition is met, and a condition judgment unit configured to judge whether or not the first condition is met during the regeneration treatment by the heatup control.