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:
Mar. 21, 2023
Filed:
Apr. 06, 2022
Applicant:
Paccar Inc, Bellevue, WA (US);
Inventors:
Charles Wayne Reinhardt Swart, Bellingham, WA (US);
Cynthia Chaffin Webb, Sedro-Woolley, WA (US);
Maarten Meijer, Anacortes, WA (US);
Varun Ramesh, Bellingham, WA (US);
Assignee:
PACCAR INC, Bellevue, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/08 (2006.01); F01N 3/20 (2006.01); F02B 63/04 (2006.01); F02D 17/02 (2006.01); F02D 41/02 (2006.01); F02D 41/08 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 3/0842 (2013.01); F02B 63/042 (2013.01); F02D 17/02 (2013.01); F02D 41/024 (2013.01); F02D 41/08 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1411 (2013.01); F01N 2900/1622 (2013.01); F02D 2200/0411 (2013.01); F02D 2200/0414 (2013.01); F02D 2200/08 (2013.01);
Abstract
The present disclosure describes methods for evaluating ammonia storage capacity of a close-coupled SCR unit while remaining compliant with prescribed emissions limits, methods of controlling an emission aftertreatment system including multiple SCR units and emission management systems for a vehicle including an internal combustion engine and an emission aftertreatment system that includes two or more SCR units.