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.

Date of Patent:
Aug. 28, 2012

Filed:

Mar. 14, 2008
Applicants:

Hisaki Torisaka, Hino, JP;

Minoru Kowada, Hino, JP;

Inventors:

Hisaki Torisaka, Hino, JP;

Minoru Kowada, Hino, JP;

Assignee:

Hino Motors, Ltd., Hino-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/035 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exhaust emission control device is disclosed. The exhaust emission control device includes a particulate filter incorporated in an exhaust pipe to capture particulates in exhaust gas, a selective reduction catalyst arranged downstream of the particulate filter to selectively react NOwith ammonia, even in the presence of oxygen, and urea water addition means capable of adding urea water as reducing agent between the catalyst and the filter. The urea water addition means is arranged at an upstream end of a longest linear portion. At least one bend is formed in a passage which guides the exhaust gas from the urea water addition means to the selective reduction catalyst.


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