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:
Jul. 12, 2022

Filed:

Sep. 07, 2021
Applicant:

Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;

Inventor:

Tatsuya Hatanaka, Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/30 (2006.01); F01N 13/08 (2010.01); F01N 3/22 (2006.01);
U.S. Cl.
CPC ...
F01N 3/30 (2013.01); F01N 3/222 (2013.01); F01N 13/08 (2013.01); F01N 2270/04 (2013.01); F01N 2590/04 (2013.01);
Abstract

A secondary air introduction device is configured to supply air into an exhaust passage of an engine to combust unburned gas contained in exhaust gas. The secondary air introduction device includes: an air introduction passage configured to introduce air into the exhaust passage; and a secondary air valve configured to be attached to an outer surface of a cylinder head of the engine and to control opening and closing of the air introduction passage. The secondary air valve is configured to be attached to an outer lateral surface of the cylinder head on one side in an axial direction of a crankshaft, and the secondary air valve includes an air introduction inlet formed in a position opposite to the outer lateral surface of the cylinder head in the axial direction of the crankshaft.


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