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:
Nov. 06, 2012

Filed:

Sep. 15, 2008
Applicants:

Yukihiro Tsubakino, Saitama, JP;

Shinsuke Yasui, Saitama, JP;

Isao Azumagakito, Saitama, JP;

Inventors:

Yukihiro Tsubakino, Saitama, JP;

Shinsuke Yasui, Saitama, JP;

Isao Azumagakito, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 1/00 (2006.01); F01L 7/00 (2006.01); G05D 7/01 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exhaust control device for a vehicle engine includes an exhaust control valve capable of changing the opening area of an exhaust passage. The exhaust control valve is disposed in exhaust passage forming means so as to be able to change a bent-internal side partial passage sectional area of the passage sectional area of an exhaust passage. Specifically the exhaust control valve is disposed at a bent portion of the exhaust passage that is closest to an exhaust valve port. With this configuration, the exhaust flow rate can be controlled satisfactorily.


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