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:
Feb. 24, 2015
Filed:
May. 16, 2011
Applicants:
Masanobu Minezawa, Fujisawa, JP;
Keiichi Iida, Fujisawa, JP;
Gouichi Akahoshi, Fujisawa, JP;
Inventors:
Assignee:
Isuzu Motors Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 11/00 (2006.01); B01D 53/90 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 11/00 (2013.01); B01D 53/90 (2013.01); B01D 53/9495 (2013.01); F01N 2550/05 (2013.01); F01N 2610/02 (2013.01); F01N 2610/10 (2013.01); F01N 2900/0421 (2013.01); F01N 2900/1808 (2013.01); F01N 2900/1811 (2013.01); Y02T 10/47 (2013.01); Y02T 10/24 (2013.01); B01D 2251/2067 (2013.01); B01D 2257/404 (2013.01);
Abstract
A selective catalytic reduction thawing control system that can distinguish between a thawing failure and a malfunction and can prevent a malfunction of a supply module ('SM') pump. The thawing control system includes a thawing control unit that detects a pressure inside the supply module when the SM pump is operated, and stops the operation of the SM pump and continues thawing of urea water when the pressure is less than a predetermined value.