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:
Nov. 15, 2016
Filed:
Jun. 02, 2011
Applicant:
Teruhiko Miyake, Sunto-gun, JP;
Inventor:
Teruhiko Miyake, Sunto-gun, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 25/06 (2016.01); F01N 3/18 (2006.01); F01N 3/20 (2006.01); F02D 21/08 (2006.01); F02D 41/00 (2006.01); F02B 29/04 (2006.01);
U.S. Cl.
CPC ...
F01N 3/18 (2013.01); F01N 3/208 (2013.01); F02D 21/08 (2013.01); F02D 41/0055 (2013.01); F02M 26/06 (2016.02); F02M 26/15 (2016.02); F02M 26/46 (2016.02); F02M 26/47 (2016.02); F01N 2900/1602 (2013.01); F02B 29/0406 (2013.01); F02M 26/05 (2016.02); F02M 26/23 (2016.02); F02M 26/50 (2016.02); Y02T 10/24 (2013.01); Y02T 10/47 (2013.01);
Abstract
A controller is provided for an engine comprising urea-SCR catalyst, a urea-water supply section, a low pressure gas recirculating section including a low pressure EGR pipe forming a low pressure EGR passage and a low pressure EGR valve. The controller controls an amount of a fuel supplied to the engine, and an opening degree of the low pressure EGR valve. The controller supplies the urea-water to the urea-SCR catalyst in such a manner that an ammonia flowing out from the urea-SCR catalyst neutralizes an acid condensed water produced by a gas passing through the low pressure EGR passage.