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:
Jan. 26, 2016
Filed:
Mar. 14, 2012
Applicant:
Annika Carlsson, Kungälv, SE;
Inventor:
Annika Carlsson, Kungälv, SE;
Assignee:
Volvo Lastvagnar AB, Göteborg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F02D 41/02 (2006.01); F02D 41/40 (2006.01); F02D 21/08 (2006.01); F02D 41/00 (2006.01); F02M 25/07 (2006.01); F02B 29/04 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2033 (2013.01); F02D 21/08 (2013.01); F02D 41/008 (2013.01); F02D 41/025 (2013.01); F02D 41/027 (2013.01); F02D 41/405 (2013.01); F02M 25/0717 (2013.01); F02M 25/0749 (2013.01); F02B 29/0406 (2013.01); F02D 41/0055 (2013.01); F02D 41/0072 (2013.01); F02M 25/0707 (2013.01); Y02T 10/26 (2013.01); Y02T 10/44 (2013.01);
Abstract
In a method for enriching the exhaust gases of a combustion engine with unburnt hydrocarbon engine operating conditions are monitored and in-cylinder post injection of unburnt hydrocarbon into one predetermined cylinder of at least two cylinders connected to an exhaust manifold is performed when the monitored engine operating conditions equal predetermined engine operating conditions. The predetermined engine operating conditions are set for resulting in a substantially zero flow of the post-injected hydrocarbon to an EGR circuit for the specific design of the engine in operation.