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. 17, 2009
Filed:
Sep. 13, 2004
Applicants:
Mitsuhiro Nishina, Ageo, JP;
Hiroyuki Kurita, Ageo, JP;
Toshikazu Katou, Ageo, JP;
Inventors:
Assignee:
Nissan Diesel Motor Co., Ltd., Ageo-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine C/Udetects an abnormality which has occurred in an engine, and outputs a signal that indicates the occurrence of this abnormality to an SCR-C/U. The SCR-C/Uincreases and decreases the urea water injection quantity corresponding to the abnormality which has occurred. On the other hand, the SCR-CUdetects an abnormality that has occurred in the SCR device, and outputs a signal that indicates the occurrence of this abnormality to an engine C/U. The engine C/Ucontrols an engine part such as an EGR valve, to reduce the NOx emission amount.