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.

Patent No.:

US 7789195 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 07, 2010

Filed:

Jan. 12, 2006
Applicants:

Tomoki Mabuchi, Toyota, JP;

Norihiko Sawada, Toyota, JP;

Fumihiko Mizuno, Inazawa, JP;

Inventors:

Tomoki Mabuchi, Toyota, JP;

Norihiko Sawada, Toyota, JP;

Fumihiko Mizuno, Inazawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 13/08 (2010.01);
U.S. Cl.
CPC ...
Abstract

A variable muffler corresponds to a muffler of an internal combustion engine including a variable valve that controls the flow of exhaust gas. The variable muffler includes a muffler body forming a muffler chamber, an inlet pipe with an opening at the muffler chamber to direct the flow of exhaust gas from the opening towards the muffler chamber, and a muffler-in pipe arranged in the muffler chamber. The muffler-in pipe includes an opening facing the opening at the muffler chamber, and into which the exhaust gas output from the opening flows in a predetermined direction. The muffler-in pipe further includes a slope inclining vertically downwards towards the opening, and extending in a direction different from the predetermined direction. By such a configuration, a muffler of an internal combustion engine having proper driving of the valve ensured can be provided.


Find Patent Forward Citations

Mabuchi, Tomoki. (2010). Muffler of internal combustion engine (U.S. Patent No. 7789195). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7789195

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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