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:
Sep. 08, 2015
Filed:
May. 16, 2011
Applicants:
Takao Onodera, Fujisawa, JP;
Takuro Iwashita, Fujisawa, JP;
Masanobu Minezawa, Fujisawa, JP;
Inventors:
Assignee:
ISUZU MOTORS LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 11/00 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 11/00 (2013.01); F01N 3/208 (2013.01); B01D 2251/2067 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01); Y02T 10/24 (2013.01);
Abstract
A recovery control system that allows a dosing valve to recover from a malfunction to a normal state, or a liquid feed line through which urea solution is fed to recover from clogging to a normal state. An abnormality detector detects an abnormality of the dosing valve and a recovery controller controls a supply module to feed urea solution in the dosing valve back to an urea tank when the abnormality detector detects the abnormality.