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:
Mar. 31, 2020

Filed:

Dec. 06, 2017
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Takeshi Oya, Nisshin, JP;

Hideki Fukushima, Okazaki, JP;

Takatoshi Sugihara, Okazaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 13/08 (2010.01); F01N 1/08 (2006.01); F01N 3/00 (2006.01); F01N 13/18 (2010.01);
U.S. Cl.
CPC ...
F01N 13/082 (2013.01); F01N 1/085 (2013.01); F01N 3/005 (2013.01); F01N 13/08 (2013.01); F01N 13/1805 (2013.01); F01N 2240/20 (2013.01); F01N 2470/30 (2013.01); Y02T 10/20 (2013.01);
Abstract

A channel cross-sectional area of a lower side channel is set to be smaller than an upper side channel in a predetermined region and greater than the upper side channel on an upstream side and a downstream side of the predetermined region. Accordingly, an ability to drain condensed water is improved by guiding exhaust gas to the lower side channel and facilitating an increase in a flow rate of the exhaust gas guided to the lower side channel. The exhaust gas flowing in the upper side channel and the lower side channel receives flow resistance from a partition member from an extending portion to a front of a main muffler. Thus, the ability to drain the condensed water can be improved with reduction in pressure loss generated in the exhaust gas.


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