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:
Feb. 27, 2018
Filed:
Jun. 25, 2013
Applicant:
Caterpillar Motoren Gmbh & Co. KG, Kiel, DE;
Inventors:
Assignee:
Caterpillar Motoren GmbH & Co. KG, Kiel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F02B 37/013 (2006.01); F02B 37/18 (2006.01); F02B 37/00 (2006.01); F01N 3/08 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2006 (2013.01); F01N 3/0821 (2013.01); F01N 3/208 (2013.01); F01N 3/2053 (2013.01); F01N 3/2066 (2013.01); F02B 37/004 (2013.01); F02B 37/013 (2013.01); F02B 37/18 (2013.01); F01N 2240/02 (2013.01); F01N 2410/03 (2013.01); F01N 2410/06 (2013.01); F01N 2590/02 (2013.01); F01N 2590/08 (2013.01); F01N 2900/1602 (2013.01); Y02T 10/144 (2013.01); Y02T 10/24 (2013.01); Y02T 10/26 (2013.01);
Abstract
Directing exhaust gas around a catalyst may pre-heat the catalyst and may thereby bring the catalyst quickly in its operating temperature range. An exhaust gas treatment system for treating the exhaust gas may include a first flow path, a second flow path, and a control system. The first flow path may include a catalyst. The second flow path may be coaxially arranged in heat exchange relation with respect to the first flow path. The control system may be configured to control the flow of exhaust gas through the first flow path or the second flow path dependent upon the catalyst temperature.