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. 01, 2011
Filed:
Apr. 05, 2007
Applicants:
Hee Chun Kang, Ansan, KR;
Tae-woo Lee, Ansan, KR;
Eun-seok Kim, Ansan, KR;
Hyun-sik Han, Ansan, KR;
Tae Hun Yeon, Ansan, KR;
Inventors:
Hee Chun Kang, Ansan, KR;
Tae-Woo Lee, Ansan, KR;
Eun-Seok Kim, Ansan, KR;
Hyun-Sik Han, Ansan, KR;
Tae Hun Yeon, Ansan, KR;
Assignee:
Heesung Engelhard Corporation, Shiheung, Kyungki-do, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01); F02B 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a method and apparatus for reducing exhaust gases in an initial cold start period, in which a main catalyst unit is connected to an engine through an exhaust pipe, including the steps of receiving signals for stopping engine operation from an engine, and removing engine exhaust gases remaining in an exhaust pipe located at an inlet of a main catalyst unit.