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:
Apr. 10, 2018

Filed:

Nov. 01, 2016
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventor:

Toru Yagasaki, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 5/04 (2006.01); F02B 37/02 (2006.01); F02B 37/18 (2006.01);
U.S. Cl.
CPC ...
F02B 37/183 (2013.01); F01N 5/04 (2013.01); F02B 37/02 (2013.01); Y02T 10/144 (2013.01); Y02T 10/16 (2013.01);
Abstract

An internal combustion engine includes an exhaust manifold, a main exhaust passage, an auxiliary exhaust passage, a communicating passage, a first switching mechanism, and a second switching mechanism. The main exhaust passage is connected to the exhaust manifold. The auxiliary exhaust passage is connected to the main exhaust passage. The communicating passage connects with the main exhaust passage and the auxiliary exhaust passage. The first switching mechanism switches a communication state of the exhaust manifold among a first state, a second state, and a third state. The second switching mechanism switches a communication state of the communicating passage with the main exhaust passage among a fourth state, a fifth state, and a sixth state.


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