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:
Dec. 28, 2010

Filed:

Aug. 29, 2007
Applicants:

Hiroshi Nakagome, Saitama, JP;

Masashi Furuya, Saitama, JP;

Inventors:

Hiroshi Nakagome, Saitama, JP;

Masashi Furuya, Saitama, JP;

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

To provide an exhaust device for a motorcycle for suppressing an exhaust resistance due to the thickness of an exhaust control valve. An exhaust device for a motorcycle is provided for an engine having a plurality of cylinders. A plurality of upstream exhaust pipes are respectively connected to exhaust ports for the cylinders with an exhaust control valve provided in the downstream exhaust pipe. A separator is provided in the exhaust manifold portion for separating the flows of exhaust gas. The exhaust control valve is located on the downstream side of the separator so that a main surface of the exhaust control valve in its fully open condition becomes substantially parallel to a main surface of the separator.


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