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. 24, 2020
Filed:
Nov. 29, 2017
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Fev Europe Gmbh, Aachen, DE;
Jin Woo Park, Seoul, KR;
Ki Hyung Joo, Gyoenggi-do, KR;
Myung Jong Lee, Gyeonggi-do, KR;
Arun Palaniappan Muthukaruppan, Aachen, DE;
Waldemar Josef Kansy, Dusseldorf, DE;
John Henry Kwee, Erkelenz, DE;
Abstract
Provided is an exhaust purification system that may include: a first catalyst installed on a rear exhaust pipe of an engine; a selective catalytic reduction (SCR) catalyst installed on the rear exhaust pipe of the first catalyst; a reducing agent injector which is installed on an exhaust pipe between the first catalyst and the SCR catalyst and configured to inject a reducing agent; and a controller configured to control an amount of reducing agent injected from the reducing agent injector. /The controller may calculate a total amount of ammonia adsorbed in the SCR catalyst, a required amount of reducing agent based on a total amount of ammonia adsorbed in the SCR catalyst, and the amount of nitrogen oxide introduced into the SCR catalyst, and then control a reducing agent injector to inject the required amount of reducing agent.